Signal Info APK

Version 0.12 - com.mbmc.fiinfo
Last updated: 2020-05-18

Keep track of which network you're connected to.

APP Information

Download Version 0.12 (13)
Apk Size3.07 MB
App DeveloperMBMC
Malware CheckTRUSTED
Install on Android6.0 and up
App Packagecom.mbmc.fiinfo.apk

Download Signal Info 0.12 APK

App Description

Signal Info is mbmc,fiinfo,tools,signal,info, content rating is Everyone (PEGI-3). This app is rated 5 by 1 users who are using this app. To know more about the company/developer, visit MBMC website who developed it. com.mbmc.fiinfo.apk apps can be downloaded and installed on Android 6.0 and higher Android devices. The Latest Version of 0.12 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 662+ times on store. You can also download com.mbmc.fiinfo APK and run it with the popular Android Emulators.

Signal Info is a companion app for Project Fi users

• It allows you to see and keep track of which network you're connected to (WiFi, Sprint, T-Mobile, US Cellular), and at which speed (2G, 3G, 4G etc).

• Free, no ads

• Events recorded:

- airplane mode on/off

- phone on/off

- WiFi on/off

- connected to WiFi

- connected to cell service

- cell service speed change

• 1x1 widget displaying current connectivity

• 4x1 widget to switch carrier from home screen (configurable)

• Notifications will be triggered for any WiFi, cell or disconnect event

• Export / import database

• Code is Open Source (, contributions welcome :) 

App ChangeLog

  • Need to grant Location permission to get SSID.
  • Note: GPS must also be turned on to be ale to get SSID (not my decision...)

App Screens

Signal Info App Screen 1Signal Info App Screen 2Signal Info App Screen 3Signal Info App Screen 4Signal Info App Screen 5Signal Info App Screen 6Signal Info App Screen 7Signal Info App Screen 8


requires following permissions on your android device.

approximate location (network-based)
Allows the app to get your approximate location. This location is derived by location services using network location sources such as cell towers and Wi-Fi. These location services must be turned on and available to your device for the app to use them. Apps may use this to determine approximately where you are.

view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.

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

read phone state
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.

run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.

modify or delete the contents of your SD card
Allows the app to write to the SD card.

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Henry Gotjen-avatar

    Useful widget for network diagnostics. One issue: when on wifi, the app knows the name of the network, but it fails to record this name. In the log, the wifi network names are all listed as "n/a". It would be helpful to know the names of the wifi networks I've been connected to.

  2. David Hartzell-avatar

    This is a great app! It has an easy to use interface allowing you to see which network you're connected to via the widget and to switch between networks as desired. Sometimes the Fi app doesn't switch to the best network and this allows you to do so at will. It's not so simple that my tech challenged mother can use it, so that's why it's 4 stars. It is pretty easy to switch networks once you try it a few times. Overall great app for Google Fi!

  3. A Google user-avatar

    This is a great app. Love the widget. It has three buttons you can use to switch between carriers (can do it inside the app too). They copy the dialer code that you need to paste into the phone and it brings it up for you. The app also shows you what carrier you are currently on too if you have auto switching enabled for Google Fi. Very clean and functional app. Glad I found it. Running it on Android 9 Pie.

  4. Nguyen Nguyen-avatar

    The app has been working great for me since i first got it. I'm always able to see what network I'm on and use the app to switch between networks.

  5. A Google user-avatar

    No longer works correctly with Android 9. Now it juat says I'm always connected to Google Fi instead of Sprint/T-Mobile/etc. so I have no way of knowing what network I'm on

  6. ScubaSlim-avatar

    This is a life saver when I need to get off Sprint, but it'd be nice if the widget would show all 3 buttons.

  7. Justin Felder-avatar

    Really only useful to nerds or the extremely curious but interesring to see the info (and be able to change if you think one network works better over another)

  8. malcolm toledo-avatar

    Would be nice if it had a mapping feature so I can see what areas I am typically connecting to which carrier.

  9. Colin Smith-avatar

    Can't switch carriers manually since Android p but otherwise a good companion for project fine.

  10. Raynold Walker-avatar

    I have Sprint. I try to switch networks and it goes to Verizon. Verizon is not a listed choice. Sprint is supposed to be roaming on T-Mobile. How is Verizon, who will not accept Sprint, getting the transfer?

  11. David Minerd-avatar

    How can you call this app signal info if it provides no information on the signal itself!

  12. Brent Hallahan-avatar

    5th star is for awesome app nd no ads.

  13. Veerender Attri-avatar

    Veerender Attri


    It would be nice if it can switch the carrier automatically.

  14. Leo Arce-avatar

    good but i changed device. still on project fi but not on pixel 3 anymore. I'm on one plus 7. can i still switch between carriers or no?

  15. Mary Tee-avatar

    never worked for me, alas.

  16. Pete Carter-avatar

    works great thanks!

  17. Mike Shea Jr-avatar

    Ok, Widget sucks

  18. Tony Godshall-avatar

    works great for copy and paste to the dialer to force underlying carrier. for my purposes, Sprint 3G works better than T-mobile LTE when going over 17 or San Jose - Soquel Rd, but Fi likes to stay on nonworking LTE old review: useful but crashes too much.

  19. A Google user-avatar

    Helped Fi CSR and I figure out service issue because I knew what provider I was using and what type of connection. Enough info for Project Fi to fix my issue. Thank you! Been using since 2016. Love this.

  20. A Google user-avatar

    Works on Android 9 now, but unfortunate you must include location permissions (required by Google).

  21. Jason Lee-avatar

    Version 0.12 fixed the Android 9.x bug. Thanks for the quick update! Still the best Project Fi app out there. 😁

  22. Michael D'Angelo-avatar

    Michael D'Angelo


    Widget doesn't work since the update

  23. Carlos Saavedra-avatar

    Carlos Saavedra


    Why do you need to know my SSID?

  24. A Google user-avatar

    Flat out useful and worthy of an install.

  25. Jason Luedtke-avatar

    Excellent app.

  26. Mike Lentz-avatar

    Works great

  27. Kathryn Silver-avatar

    Works decently

  28. Mark Ebersole-avatar

    As a free app this works exactly as expected. It is not intrusive and gives lots of useful information in tracking the use of the carrier. Since Sprint is so sucky this is a big help in making sure my phone stays on T Mobile

  29. A Google user-avatar

    Liking the app a lot. Works great. But I'm running 8.1 on a Pixel 2 XL and the app or widget won't display the WiFi ssid. Just says

  30. Scott Frost-avatar

    Works great apart from when turning off WiFi. Says disconnected even though it has lte signal and connection. Using Moto x4 with Android Oreo 8.0

  31. A Google user-avatar

    Working great again after the update on 12/19/17. Essential tool for anyone on Project Fi service!

  32. Justin B-avatar

    Update review: two issues I had with app were quickly fixed. Great app with useful info. thanks!

  33. Cassidy Swain-avatar

    Exactly as advertised. Great for verifying your connection. I find it especially useful when travelling abroad.

  34. Shur Gopal-avatar

    Great app! I love it!!

  35. Hans Wolfgang Schulze-avatar

    Hans Wolfgang Schulze


    Great for tracking Project Fi Network, and forcing network change. Small typo EHRDP should be EHDRP. Otherwise simple and light, to the point.

  36. Jason Hiller-avatar

    UPDATE: I was told by Project Fi support that this app sometimes causes poor connection and interrupted switching between towers. If this happens to you BOOT INTO SAFE MODE. Simply touch and hold the "power off" on screen button and choose "safe mode". Upon reboot you should be good. Excellent app for troubleshooting or just knowing which cell network you are attached to with Project Fi. One REQUEST to the developers - please make the service log exportable to a text or some such file. Even making it paste into an email could be helpful. Thanks for making this.

  37. Michael-avatar

    Great app. One small request for notification settings is the ability to toggle off wifi notifications (or have separate mobile/wifi notification settings). I really only care about mobile network changes, but get tons of notifications for wifi changes.

  38. Bryan Montford-avatar

    This is both helpful and educational as it allows you to see who you connect to, what connection has been made, when it has changed and can help you select what carrier you connect to. The widgets only increase the utility of an already well polished app.

  39. Suresh Gautam-avatar

    App is good for what it says it does but "QR code for vending machine" ... what is that for?

  40. Neil Horowitz-avatar

    Since installing the Android 8.1 developer preview on my Nexus 6P, my wifi SSID is listed as "unknown".

  41. Nate Ridderman-avatar

    Widget stopped working with latest update

  42. Sam Robinson-avatar

    No longer working on Nexus 6p. Used to work great.

  43. Alex Delaney-avatar

    Nice to always have on. I can easily tell what my status is.

  44. T W-avatar

    Works fine, gives all the information I require.

  45. Thomas Ansley-avatar

    A must have for any project fi user!

  46. Stephen Z-avatar

    App is great, 5th star would be if there was an export option.

  47. A Google user-avatar

    Helped me once or twice

  48. Jeremy Hettenhouser-avatar

    Jeremy Hettenhouser


    Does the thing for free

  49. Huanxin Zhong-avatar

    Opened source and works as expected. 5 stars!

  50. Dentar Inc-avatar

    This does what I want, and is GPLed, which is great!

  51. Julio Villasenor-avatar

    Julio Villasenor


    Excellent application, just does the job,Thanks

  52. Anuj Behl-avatar

    Does what it says

  53. A Google user-avatar

    Nice app. I do wish they would add a button to report carrier issues to the appropriate carrier. I still see a LOT of 2g connectivity and have to switch carriers. Maybe a troubleshooting or dev mode with carrier signal strength. Seems to have gotten worse since last Android version update.

  54. A Google user-avatar

    This app does a great job of knocking the rough edges off of the Fi service. It usually does the right thing about network switching but not always and it is good to see a history of what network is being used. Not such a fan of the new name and icon, but at the end of the day I don't care if you call it Bob. It work s.

  55. Rob Simmons-avatar

    I'm not a power user of Fi, but I like knowing when I was connected to what network in the past. This app gives me exactly what I'm looking for.

  56. Liv Q-avatar

    A good utility to see what network you are connected to and gather data. The UI has a learning curve and it's the home screen widget isn't very useful.

  57. Paul Desmond Jr-avatar

    Paul Desmond Jr


    App is great, but hate the new name and loathe the new "logo". You might want to track down some cheap talent for help with a marketable name and an actual logo design.

  58. Daniel Repasky-avatar

    I got rid of as many icons as I could when I rooted. I realized the only time I want to look at my signal is if something is wrong. With this, I can set a widget to check if it's my signal that drops a call without needing the icon in the top bar.

  59. Walter Peterson-avatar

    Walter Peterson


    Switching between carriers is neat, but I wish it would do it based on location automatically. I'll see if Tasker can do it.

  60. Chad Bentz-avatar

    Rename it back to Fi ! Can you also log the radio type for wifi... 2.4 vs 5 ghz

  61. Schlaegel Family-avatar

    Schlaegel Family


    This allows you to see which mobile provider you are using with an icon in your notification area.

  62. A Google user-avatar

    This is the best app to get it you have Project Fi

  63. Paul Turner-avatar

    This app does exactly what it says it does, without issue. Does anyone know of a way to export the data?

  64. A Google user-avatar

    Fi is a great service and this app makes life simpler.

  65. Derek M-avatar

    Clean, simple, and very useful. Thank you for only requesting necessary permissions.

  66. Jim Ellis-avatar

    Shows which network is being used, and a log of the connections used.

  67. Gil Collins-avatar

    switching networks no longer works on 6p

  68. A Google user-avatar

    Absolutely perfect for Fi users!

  69. Roland Newmark-avatar

    Does amazing job, especially for free app.

  70. A Google user-avatar


  71. Erhan Hosca-avatar


  72. A Google user-avatar

    Go 4 the Widget, it's simple & useful. No clutter just needed info. Apps give u history of everything & NO stinking ADs is what really makes this 5 star. Yes, putting codes in the dialer is a bit of hassle, but how many times do you use this feature anyway given FI switches automatically under the radar. Again Widget + NO ADs! Keep it this way pls. I would like to see average signal strength stat, but not critical. Hack I would love to see signal comparison vs VZ & AT&T vs FI too, but that could b a battery killer.

  73. A Google user-avatar

    When I try to manually switch it shows a pop up saying I need to paste the clipboard. Then it redirects to the dialer. What needs to be done next? I tried calling the symbols and numbers but it doesn't seem to do anything. Device is 6p. It's an awesome app otherwise.

  74. A Google user-avatar

    I've often found myself wondering which service I'm locked to, especially when I'm having issues making phone calls. The fact that I can peg myself to one service or the other now is a godsend. Sure, it's a bit clunky to have to paste code into the dialer, but if you're the least bit technical (nearly all Fi users are), it's really no sweat. So thank you for this, and for making Fi even more awesome!

  75. Derek Thorpe-avatar

    This app is a godsend. I know you can do it manually with codes, but this is much easier! My Pixel XL was stuck on Sprint's crappy network. I forced it to T-Mobile, and now have an amazing data connection!

  76. Mike May-avatar

    I only have one recommendation... Can the icons have color to match their carrier? All icons have color? Also, on 7.0, the notification when you drag the screen down doesn't show like the screenshots.

  77. B Diggs-avatar

    All this needs is the option for a persistent status bar icon. Right now it only seems to stay active when there is a network change. If you dismiss or select the notification, it also disappears until the network changes again.

  78. Abby Tom-avatar

    I get an "invalid" error when switching to US Cellular. Project Fi app and system updates are complete. I will change my rating if this gets fixed. ***Edit: I read this phone needs rooted. I'll try that and change my rating if it works.

  79. Maximiliano Vallejos-avatar

    Maximiliano Vallejos


    That's all I can say... Wow. I'm really impressed. App needs no rights and does the job from within phone. Well done! (Thanks for adding US cellular too!) - months later, still a must have app!

  80. Donald Jones-avatar

    This is how I wish more apps were written. It requires a little user effort in exchange for fewer permissions to your data. This developer is destined for great things.

  81. Ste ven-avatar

    So only use was to see if I was connected to Sprint or Tmobile. I couldn't force a switch, which I'm learning is needed because Fi doesnt always connect you to the fastest network. Tried emailing but never got replies

  82. Heather Newkirk-avatar

    Heather Newkirk


    When I try to switch to uscc I get error invalid MCC/mcn

  83. Paul Campese-avatar

    Doesn't give carrier info overseas. The US carriers seem to be hard coded...

  84. John Baldauf-avatar

    Perfect. A must have if you have Project Fi. I wish Google would vastly improve automatic switching, especially when either a) the new tower is a repeater or b) you just entered a different country. But until that time, at least with this app's help I can give it a nudge and be back online in a jiffy.

  85. Geoff Walsh-avatar

    Great app. But touring Ireland now and it doesn't recognize Europe Fi partners

  86. Josh Neff-avatar

    Great idea and works good. I just installed vpn and now it reads connected to wifi and vpn? Not sure how to make sure the data would run through wifi? This is probably going to take forever for me to figure out. 😞

  87. Vikas Garg-avatar

    Latest update isn't working with the switch to US Cellular. Other than that this app has been really useful as a new Project Fi customer!

  88. Damon Jones-avatar

    I like it pretty good but the widgets are "too crowded" as seen in this pic. May be like cause I increased font-size in Android 7.0 settings

  89. Timothy Steele-avatar

    Awesome app bit ugly seems to work need a better GUI for the widget also widget needs 4 buttons not 3 1 for each carrier and 1 for auto would be nice

  90. Evan B-avatar

    Does what it says, and the design fits Google Project Fi's style. If you need to log your connections, then look no further.

  91. Rob O'Connell-avatar

    Exactly what I was looking for. Why the project Fi app doesn't do this is beyond me but thanks to dev for stepping in. Solid job from design to implementation.

  92. Justin Cavanaugh-avatar

    Justin Cavanaugh


    Great app to switch between between available carriers. Will you be updating the widget to include US Cellular as a button?

  93. Will-avatar

    Great app! I haven't used the manual network switching feature, but the 1x1 status widget and the event history view have proven very informative!

  94. A Google user-avatar

    This is great to have and gives some useful information. It has so helped me diagnose a router issue I was having. Thanks!

  95. Mike Kalen-avatar

    I'm a Fi noob. Why do I need this?

  96. Travis DeLong-avatar

    This app is a must have for all Google Fi Users.

  97. Matthew Tuescher-avatar

    Matthew Tuescher


    it's a great app to have with the Fi service

  98. Steven Edmonds-avatar

    When you need to check your account this has everything you need.

  99. Austin Williard-avatar

    Austin Williard


    Finally! I can see which network my Nexus is connected to. Thanks!!

  100. Nikhil Gore-avatar

    It works as per the description, sometimes when out of cell range or shows the last provider.