Speed Reading APK

Version 4.1.5 - com.speedreading.alexander.speedreading
Last updated: 2020-08-02

Discover for yourself a new wonderful world of speed reading.

Speed Reading apk

APP Information

Download Version 4.1.5 (91)
Apk Size6.26 MB
App DeveloperSpeed Reading Team
Malware CheckTRUSTED
Install on Android4.1.x and up
App Packagecom.speedreading.alexander.speedreading.apk
Website https://apkgod.com/

Download Speed Reading 4.1.5 APK

App Description

Speed Reading is speedreading,alexander,education,speed,reading, content rating is Everyone (PEGI-3). This app is rated 5 by 2 users who are using this app. To know more about the company/developer, visit Speed Reading Team website who developed it. com.speedreading.alexander.speedreading.apk apps can be downloaded and installed on Android 4.1.x and higher Android devices. The Latest Version of 4.1.5 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 3997+ times on store. You can also download com.speedreading.alexander.speedreading APK and run it with the popular Android Emulators.

With our application, you can independently increase the reading speed to the desired level without expensive courses.

Specially selected simulators in the application will help you quickly memorize numbers and words, increase the ability to concentrate, expand the field of view and significantly increase the speed of your reading.

With the skills of speed reading you will:
- Learn to save time when reading any text;
- Always find the most important text in the text;
- Develop memory, attention and expand your vocabulary;
- Start to think differently, effectively solve problems, think creatively, manage more, and become more energetic and successful!

Thanks to special simulators, such as Schulte Table, memory and attention development simulators, you can increase your reading speed by several times.

The program allows you to read books in the formats fb2, epub, txt.

Discover for yourself a new wonderful world of speed reading, and you will be able to outperform competitors, cause respect of your partners, superiors and subordinates!

App ChangeLog

  • - fixed bugs

App Screens

Speed Reading App Screen 1Speed Reading App Screen 2Speed Reading App Screen 3Speed Reading App Screen 4Speed Reading App Screen 5Speed Reading App Screen 6Speed Reading App Screen 7Speed Reading App Screen 8


Apk scan results

Apk Scaned By TotalVirus Antivirus,com.speedreading.alexander.speedreading.apk Was Pure And Safe.

Scan Stats:confirmed-timeout:0|failure:0|harmless:0|malicious:0|suspicious:0|timeout:0|type-unsupported:11|undetected:63|
Name:53541850BF0B77ED8E17AA9AAAD38B06 SHA-1:0138a8bdac7f70cee5ff6d2d7b99ff0f279ac779 SHA-256:336ba0c89fe1dc9b558ec3d2a459ad61c6733b6eb5374b0bbe869587e19d9082 SSDEEP:196608:bx4g8+GQOZcasbTjfLUX65dQqLSTDvaiTfEuGude:bxl8+3OZMbgrqLSTDyM0 File type:Android Magic:Zip archive data File size:6567051 Uncompressed Size:10529445 Contained Files :1615 Contained Files By Type:MF:1,RSA:1,SF:1,dex:1,gif:2,gz:1,png:64,pro:3,raw:1,srt:2,ttf:1,txt:2,xml:405,


requires following permissions on your android device.

android.permission.ACCESS_NETWORK_STATE: Allows an application to view the status of all networks.
android.permission.INTERNET: Allows an application to create network sockets.
android.permission.READ_EXTERNAL_STORAGE: Allows an application to read from external storage
android.permission.REORDER_TASKS: Allows an application to move tasks to the foreground and background. Malicious applications can force themselves to the front without your control.
android.permission.WAKE_LOCK: Allows an application to prevent the phone from going to sleep.
com.android.vending.BILLING: Unknown permission from android reference
com.google.android.c2dm.permission.RECEIVE: Unknown permission from android reference
com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE: Unknown permission from android reference
com.google.android.providers.gsf.permission.READ_GSERVICES: Unknown permission from android reference
view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

read the contents of your SD card
Allows the app to read the contents of your SD card.

reorder running apps
Allows the app to move tasks to the foreground and background. The app may do this without your input.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

In-App billing
In-app Billing on Google Play provides a straightforward, simple interface for sending In-app Billing requests and managing In-app Billing transactions using Google Play.

receive data from Internet
Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage.

read Google service configuration
Allows this app to read Google service configuration data.


Certificate Issuer:C:322, CN:Alexander Safonov, L:Minsk, O:Alexander Safonov Company, ST:Minsk, OU:Alexander Safonov Company
Certificate Subject:C:322, CN:Alexander Safonov, L:Minsk, O:Alexander Safonov Company, ST:Minsk, OU:Alexander Safonov Company









Interesting Strings


Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Aditya Jyoti Paul-avatar

    Aditya Jyoti Paul


    Found it weird and stupid... Had speed reading not been the name of the app, I'd never have guessed it's purpose. The dark mode looks good, that's the only good thing about the app. There are some exercises with long boring meaningless explanations for why I'm doing it. UI for the explanations is just terrible. And most weird of all, when I'm checking graphs for time and score, they look the same, score should be higher when time is lower if I understand rightly.

  2. Billy Spendlove-avatar

    Billy Spendlove


    Been using it for a few days now and the tasks are interesting. The scores they give you, however, aren't explained.. I'm not sure why I got a 58 for remembering numbers compared to a 39 for peripheral task. Still, I guess it's training me up. Shame its a subscription service too, i'd pay for it if it was a one time buy.

  3. D ML-avatar

    I highly recommend Speed Reading (SR). I paid for and satisfactorily used the full premium version for a few months. While I have experienced difficulties restauring my full access on a new mobile, the SR team has provided timely and superb support as I try to sort out this technical issue. The SR team's responsiveness, I must say, has improved significantly, which I find reassuring and may take into account, should I decide to purchase full access again (if the technical issue is not solved).

  4. javier k-avatar

    I like it, fun to test out my speed reading skills,and improve then too...though I do feel there's some that may be too hard or too easy or maybe that's just me hahahaha....the number memory game was difficult, the speeding word was somehow easiest,I got to 3000ms easily hahaha....though the last 5 mins of staring a passage is kinda boring after a few times, wished there was more variety than just that. Overall good game!

  5. B.J. Walton-avatar

    Activites have almost no explanation for what you're trying to do. If you dig through the pages, you can find a description that gives you a rough idea of how it is supposed to work (maybe) but most of the activities you have no idea what your real goal is. Clearly translated and translation is pretty bad.

  6. Pururaj Singh-avatar

    Overall a great app. But I have hit a plateau. And the app doesn't guide you on how to get out of being stuck. How do I go from Apprentice to adept, I don't seem to get it. It tells me I need 8 stars. I already got 1500 but still an apprentice. What's that supposed to mean?

  7. Evgatorimus Rommbez-avatar

    Evgatorimus Rommbez


    It is good app for training speed reading. Many useful exercises and clear interface. Besides, in the app many different languages, which are especially pleased.

  8. Fathaldin Aljamal-avatar

    Fathaldin Aljamal


    It needs a better UI. Because now it looks like it's one of those games that are made just so they can show adds. But this app is really helpful it should look like something really premium UI.

  9. Dikshant Chaubey-avatar

    Dikshant Chaubey


    Why is there no info about the frequency & duration of our daily training for achieving the best results? Kind add this info to a seperate tab on the main page.

  10. Christopher Leech-avatar

    Christopher Leech


    I have been using this app for a couple weeks now and have been enjoying it in that time; I have seen small improvements in reading, so far. However, there is a bug that I found. There has been more than a couple times now where the app will randomly close (this has been happening after I complete a session and either click to see history scores/times or clicking on other buttons to change the screen).

  11. Ajay-avatar

    Its great when it works... Unfortunately for me and my note 10+ several updates (app and OS) have broken certain features of the app several times. I use the courses but most importantly I use this app to read my own files. As a daily reader that relies on this app to read ebooks for hours per day I find it extremely disappointing to continue logging on to read and finding that I cannot. Since my note updated to android 10 I cannot add or read ebook files. The app just crashes. Think I'm done.

  12. Seb R-avatar

    This is a great app, I highy recommend it for anyone who wants to read faster and reap the many benefits of this "superpower." My only complaint is that I need a little more guidance as to what exercises to do daily... I feel like the app just throws you in there without explaining what must be done first.

  13. Alex Broman-avatar

    Not RSVP. Unable to load books from the memory card, but just internal storage. Fullscreen flashy ads with sound on - disgusting. 20 USD to purchase full version.

  14. louis ferreira-avatar

    Seems good, but i have leveled up and now i no longer get the rules of each game before playing? Some i remember, most I don't. Especially the goal, like, are you always just to keep your eyes in centre of screen? Can there be an option to enable/disable the tutorials before you play???

  15. Roman Koval-avatar

    I like it, there are some limitations in free version, but that's fair, work on apps that help should be well paid

  16. Elder Frank Gordon, Jr.-avatar

    Elder Frank Gordon, Jr.


    This app does what it saya. The speed of my reading has improved and comprehension is better as I am reading faster. All of the training in this app was new but very helpful and at times fun.

  17. Sumit Dey-avatar

    Uses good concept.Pdf not supported as most of the books I read is in pdf format, although to convert pdf to txt,epub(formats this app can read) I have to download file converter separately. Pls add pdf format feature.

  18. danilo alvaro-avatar

    I love this app, I think it will help me to become a fast reader. Keep your good service, thank you.

  19. Goose Lover-avatar

    Great app for training the brain in general, not just for speed reading.

  20. Aliyu Baba-avatar

    As a free app it is all your need for speed reading development, i enjoy the app,and the enclosed excert of the book 'speed reading: all secrets' is gold(en), still reading......

  21. yogesh joshi-avatar

    Keep going, very nice app.... i recommend it for all. It will help you to increase your reading speed by eye exercise and techniques... !!!

  22. Mateo Grassini-avatar

    I really like this app, it has been really useful with all the exercises that it has!

  23. Theodore Farough-avatar

    Theodore Farough


    I havent used the app long enough to give it 5 stars, but I haven't had any issues, and I appreciate that the ads are short and simple, while understanding that they're necessary for the app to exist

  24. Diana Adhiambo-avatar

    The training exercises are challenging enough but the descriptive texts are too ambiguous with incomprehensible grammar.

  25. zainul abideen-avatar

    Great app for speed reading and acts as a exercise for brain..

  26. Vasilij Nadulisnjak-avatar

    Vasilij Nadulisnjak


    Good, but sadly completely spoiled by last update with mass of huge build-in ads. Very sad.

  27. Dean Archer-avatar

    Excellent so far. Gives great practise. Great app! Really happy with app

  28. XdragonxalliX-avatar

    So many adds! Base course has 20 games, I must have seen 17 adds. Terrible. The aim is focus, but let's interrupt that focus every chance.

  29. volam jeevan kumar-avatar

    volam jeevan kumar


    Nice one..it fixes the things which are root and fundamental for speed reading

  30. Duong Manh Cuong-avatar

    Duong Manh Cuong


    Like it. However too many advertising interrupt the focus

  31. Adebayo Omeiza Agbaje-avatar

    Adebayo Omeiza Agbaje


    I notice some improvement on concentration just after fee days of use. This is the best learning app I have used so far. Thank you.

  32. Mat Ishmael-avatar

    It really works and I feel like the exercises improve total processing power. It's also free.

  33. Munkhbaatar Shagdarsuren-avatar

    Munkhbaatar Shagdarsuren


    great app. i have minor issue with the book. The speed reading book is not loading after page 162.

  34. Arpit Yadav-avatar

    This an excellent app for speed reading ! 😍 Loved it , because you can learn speed reading throught it very easily.Please download it reap the benefits of speed reading. 🥰

  35. Haseeb Ahmed-avatar

    After the most recent update, it seems to have been fixed. Thanks a lot!

  36. Amit Chauhan-avatar

    The book is good. But at some places the diagram is missing e.g. Page No 228. Can you please help with this missing diagram and also other diagrams which might be missing.

  37. Stanley-avatar

    I love using the app and learning things quickly. It has been fast paced learning for me.

  38. Stephen Baker-avatar

    Too expensive. Ads are annoying but I can't afford to pay their $23 asking price, nor do I want to add another monthly obligation!

  39. Владимир Шаров-avatar

    Владимир Шаров


    Elegant made games for memory and sign without garbage appearence, minimalistic design

  40. Diego Dominguez-avatar

    Diego Dominguez


    I think it's uncomfortable because we can't rotate it, (I would like it with landscape mode) but the rest is ok.

  41. Brandon Stewart-avatar

    Brandon Stewart


    Awesome app... If you work at it everyday you can really start to see a difference. But you have to put in the effort.

  42. Sam Davis-avatar

    Translation to english isn't perfect: enough that instructions are confusing. Still useful though.

  43. Rainer Rodrigues-avatar

    Rainer Rodrigues


    I absolutely love this app and it has met my expectation to improve my speed reading skills.

  44. shivam kumar-avatar

    The content is superb.... But app lags at times. Refraining from swiftly performing exercises..

  45. Animish Dighe-avatar

    Very good app and useful too, works if ised consistently for a week. Gives effective results.

  46. Manoj Prabhakar-avatar

    Manoj Prabhakar


    Changes made in the new update? Ads will now appear on full screen 😂😂

  47. Sejal's Briefing-avatar

    Sejal's Briefing


    Really great app and it really helpful and works in real

  48. Andrei Beckerman-avatar

    Andrei Beckerman


    It's the best app that I tried for this speed reading

  49. Existential Crissy & E.C. jr-avatar

    Existential Crissy & E.C. jr


    Two tests available that take 20sec but zero to read without paying upwards of $20. Boo.

  50. Jordi Serrano Berbel-avatar

    Jordi Serrano Berbel


    Really useful to enhance attention, fast comprehension and efficient processing of everyday life's data

  51. Ihtesham Emon-avatar

    Really good app, one of the best speed reading app available on play store 😍

  52. Zach Tetteh-avatar

    This is one of the best apps to improve your memory and help you focus on a task at a time

  53. Beka Batmanashvili-avatar

    Beka Batmanashvili


    On android version i can't add books in library section

  54. Hidden Ace-avatar

    This has been very helpful. It's challenging, but well worth the effort.

  55. Widi Aphrian-avatar

    So challenging and low memory usage.

  56. Nicolas Sheriff-avatar

    Nicolas Sheriff


    Excellent free version, plenty of features.

  57. Jamie Grenke-avatar

    I LOVE this app! Fun while helping me develop new skills!

  58. Lan Cai-avatar

    Amazing, i love this app. Recommend to use it. Thank you

  59. Miguel Ortega-avatar

    I like the motivational quotes, but they need more!

  60. Ashli Novogroski-avatar

    Ashli Novogroski


    Cannot get past the green dot, it keeps crashing and i have the updated version

  61. Padre The Man-avatar

    Great for exercising the brain and awakening those abilities long since buried. Fantastic for sharpening your mental aptitude.

  62. Ibraheem Zeyad-avatar

    I really loved this app It is really works not like other fake apps

  63. Mehul Shah-avatar

    Good for practicing speed reading exercise 😁👍

  64. jessiah hines-avatar

    Havent used it for very long. For me, i use it on my breaks at work

  65. Maria Kozorezova-avatar

    Maria Kozorezova


    Love it! Thank you so much. Probably subscribe 👍

  66. Manish Patil-avatar

    Try Speed Reading - Trainer.... Is way better than this app

  67. Askia Dunnon-avatar

    Doesn't really work.plus gimmick fees enclosed.

  68. Dreaming High-avatar

    I can't find the instructions for the tasks after having completed once.

  69. Tom Childers-avatar

    What does it want??? Sometimes the challenge doesnt describe how to win. It asks for a word without saying how to choose the word

  70. Nikhil Mirkute-avatar

    Contains really great short of exercises

  71. audible library المكتبة المسموعة-avatar

    audible library المكتبة المسموعة


    It's great app thank you so much it has to used by everyone

  72. Nina Crowe-avatar

    Great app! Can't say that I got a photographic memory after using this application for a month, but I DO see the results. I am more attentive and read a bit faster. For a university student like me, this makes a lot of difference. Not that it is a complaint, but could you please add the result statistics from day one? It is a lot more motivating to see your growth on larger scale. Anyway, thank you for making this app ^^

  73. vardhan aditya-avatar

    You will excel for sure... Be patient. Simply superb

  74. Jonah Adamsky-avatar

    Unable to actually get any real use from this app without purchasing add-ons. Ads are full screen and pop up when trying to navigate the app, ridiculous.

  75. Marcus Woods-avatar

    Downloaded the app. Crashes before I can even get it to load a single book. Bug report sent. Couldn't even attempt to test it out.

  76. Lorenzo Fiorini-avatar

    Lorenzo Fiorini


    You can't read books on PDF format

  77. ali sartipi-avatar

    This app is great but it can be better when you add persian (farsi)

  78. Ryan Bills-avatar

    I recommend this app to anyone who has problems being able to focus. It helps alot. Not much more I could say. Thumbs up. Table my opinion and read more.

  79. Colin Tracey-avatar

    Update: bug was mostly fixed when they added the ability to restart the basic course, but by restarting, I lost all the scores I had in my previous run, which was the best run I'd ever had, so I'm still a little salty about that. They also never notified me personally that the bug was fixed even after I notified them several times about the issue, so customer service could use some improvement. I found out by periodically launching the game and trying the green dot course, which takes 10 minutes, only to find that the game was still crashing. Not happy about those issues, but still a great game. At first, the game was great, but now it crashes every time I finish the green dot level in "pass the course" so I cannot play that mode anymore and cannot see how I am progressing. I tried uninstalling and reinstalling, but it is still not fixed. I have notified them multiple times about this bug and have seen others mention it in their reviews and it is still not fixed. This severely limits the game and has to be fixed. I'm really disappointed because I was really enjoying this game. I will change my rating if they ever fix this bug.

  80. margherita balzani-avatar

    margherita balzani


    With the latest upadates I can say that most of the issues where solved, but still a lot can be done to improve its potencial. For example, as a bilingual person I should say it really makes me said to not being able to change the language of the app from the settings. The only way I can do it is changing the main sistem language and I don't really wanna do that.

  81. Brian Lawrence-avatar

    Good app for mental stimulation.

  82. J. M.-avatar

    Great app when it used to work. Now every time I press on next after having completed the greendot exercise the app crashes. and it doesn't even take into account the fact I've passed it. So I'm stuck to this exercise and it keeps crashing. Therefore I can't pass any more courses. I tried 4 times (i.e. 4x5 minutes each time to complete the greendot ex.) and it crashes everytimes. Would be great if you could fix it.

  83. The Last Potato Bender-avatar

    The Last Potato Bender


    Before I met this app I was getting distracted so easily, but the problem solved when I started to train. It really works. My reading speed incresed by approximately 300 words in only one and a half week (i train two times a day and do some speed-reading for 15+15 mins each session as said in the beginning. Before you start to train make sure that you read the instructions in order to show progress in a short time). There is only one problem, the Green Dot exercise is a little bit confusing, it shows zero stars. If you don't gain any points by doing that please note that in "Help". I really appreciate the work! Thanks a lot.

  84. Jim Folliard-avatar

    Neural analysis is cool, but app crashes when trying to add reading material.

  85. Rayne Iona Johnston-avatar

    Rayne Iona Johnston


    Dubois. poor instructions. too small font for instructions. poor English, and still of grammatical errors, and missing words. some exercises font with properly. Fur example, in 1 exercise there is current tuner, and "bar tune". But since you cannot Sup the current timer, or indicate in any way that you're completed the task, so.. you can never"improve" your the best time. Also, I don't think you can improve to the next level. Finally, I'm not convinced that there exercises are well designed for the purpose. they may help a bit, or CEO in concept, but depending on you phone, may only digitally hero in theory, rather than being actual next level improvements. Especially govern it wants 2 HOURS DEDICATED PRACTICE DAILY.

  86. Stewart Fleming-avatar

    Stewart Fleming


    Warning: This starts off interesting but will frustrate you quickly. The instructions have been poorly copied from other websites. Many don't make sense. How to complete the Green Dot exercise is not explained and there are no scoring guidelines at all. It could have been great but a lack of attention to detail kills this app.

  87. Xand Schenk-avatar

    the app itself seemed good. after every exercise I saw an ad for a few seconds. this would be okay for a free app, but I encountered an ad for an audio book ad and this played a sample from the audio book by itself. I do not tolerate ads which make sounds without warning, especially when the phone is in silent mode. it’s a pity since the app seemed good otherwise. :-(

  88. Azat Bektemissov-avatar

    Azat Bektemissov


    Good app, but I can't change language.

  89. Solace Creat-avatar

    Fantastic app, truly. Only thing is I don't know if English is the first language of the author. A few areas seem very difficult to understand, but I still understand the gist of it. _____ Cool. Some updated translations would be awesome. It's only in a few parts, where understandability goes way down. Like the explanation of the green dot exercise.

  90. MJ K-avatar

    Underwhelmed would be an understatement. App closed repeatedly with anything but the included content. Plenty of other speed reading apps on Google Play... I suggest you try one of them....

  91. James Taylor-avatar

    The instructions need to be reviewed and edited by a native English speaker. They are confusing and hard to understand sometimes. The exercises are awesome but the instructions are unclear and I'm not sure what exactly I'm supposed to be doing or what the end goal is. The app overall feels unrefined but has good potential.

  92. Michał Śmigiel-avatar

    Michał Śmigiel


    App has great potential however there are major issues App doesn't let me through the last green dot test. After green dot changes its colour to light green i have to make it over and over again... Also instructions are very unclear. E.g "thanks to this vision, the green dot becomes REPORTING BRIGHT". Thanks to what vision? It becomes "reporting bright" over time. According to instructions green dot should start to move while it is standing still.

  93. Tobias Steinert-avatar

    Tobias Steinert


    The app is ok and if would be the only one I would probably still use it, but there are other apps, which do the same, but much better (Reading Trainer, costs 3€). It also seems to me that the app is designed just to sell the book. The is also inconsistent in the adviced time, which you should spend, compared to the book. The book also seemed kinda rubbish to me, because it consists just of motivational quotes and cherrypicked examples.

  94. Seth McGee-avatar

    Small improvements could go a long way for this app! New to the app, but good so far. There are improvements that could be made - I don't see how to navigate back to the instructions for the Green Dot training but it does not make any sense to me (also, concerned that being deuteranope color deficient is not on my side). I found some English syntax/grammar errors in other instructions as well. I really enjoy being able to load epub and text files, then using the read by selection feature!

  95. Daniel-avatar

    It's very good app, but i have two suggestions: first one is, that you should add reading mode, where you will concentrate on one point and the words will flash, so you wont have to move your eyes(the amount of words displayed should be customizable) The second suggestion is changing the layout of calculator keyboard in remember numbers training mode: Instead of having 1 2 3 on top, make it 7 8 9, or atleast make it customizable Thanks for reading my review, keep up the good work

  96. Miss Choi-avatar

    Tell me why do I have to stare at a image for »10 minutes«?! I hate that one exercise, if it was one minute I would completely understand but it is a crazy idea someone will stare at the center of a image for bloody 10min. The rest of the app is great even if there isn't many instructions for each session. I uninstalled it because I believe a certain mind training app that I have will do what I looking for but I think this app is good for what it offers.

  97. Orrin Warner, Jr.-avatar

    Orrin Warner, Jr.


    This app is really helpful. However, it cons you out of $22.99 just to remove ads. I went in thinking it would open a new field of the app; but it almost did nothing, as there are very few ads already, if any. Also, its not a cheap version of elevate. So dont consider downloading with that as your intent.

  98. Oyama Toayei-avatar

    After one week i can feel the difference and by buying the "forever package" i hope to see more difference, keep updating this amazing app... because overall this is the best app for its genre Edit: question to improve my result "is the green dot supposed to move or not ?" Edit: i dont have a problem doing the green dot exercise at all so far i dont know what other proble is but i think it have something to do with the phone not the app JUST BOUGHT THE APP PLEASE REPLY

  99. Bethany B.-avatar

    Needs cross-device capability. The exercises are good, but sometimes I'm on my phone, sometimes on my tablet, and there is no way to sync them. Especially problematic when paying for the premium access as it would currently require paying separately on each device, which isn't going to happen.

  100. Faizan Rasool-avatar

    A wonderful application for the practicing of new horizons of brain powers.Such applications are a good service for mankind and a give an explanation of good use of smart devices.