
Why? 과학
When you curious? Hold out your Why?. Why? Because there are answers in! - A high-quality cartoon that solves difficult content in a fun way - Precise illustrations and photos that easily solve scientific principles - Careful supervision by experts representing each field - Completed copyright export to 50 countries in 12 languages * Why? Science e-Book Highlights * 1. I'm curious: Contents about difficult terms are organized to make it easier to understand by showing additional information. 2. Scientific figures: Characters that can only be briefly dealt with in the main text are provided with additional information so that separate character learning is possible. 3. Kernel Quiz: Why? By solving the problems of the content that can check the knowledge acquired in the science learning cartoon and the questions related to the subject, it is possible to organize and learn more. 4. Item: By having the items found while learning Curious and Questions are gathered in the 'Item Warehouse', the motivation to learn and to read books continuously is motivating. 5. Related content: Due to the nature of the book divided by subject, a device that connects related content is provided so that in-depth knowledge can be accumulated. 6. Videos·Photos: Videos help students learn concepts by showing them as related videos for students who have difficulty with science concepts, and increase the convenience of users by organizing them to view together with actual photos in the book. * Why? Science e-Book Features * 1. Zoom in: Double-tap in the body viewer to see the manga enlarged. 2. Brightness: Move two fingers up and down in the body viewer to adjust the brightness of the screen. -Why? Science Book List- * Volumes 1 to 73 : universe, human body, sea, computer, plant, earth, animal, insect, environment, science, weather, nuclear and energy, puberty and sex, dinosaur, chemistry, discovery, physics, fossil, antarctic arctic, water, robots, aliens and ufos , natural disaster, disease, venomous flora and fauna, cave, mudflat, rockets and probes, mode of transport, microbes, humanity, sports science, first aid, stars and constellations, brain, light and sound, information and communication, reptile amphibians, food and nutrition , experimental observation, future science, genetics and blood type, beetle and stag beetle, fish, bird, life science, traditional science, electricity and electronics, scientific event, forensic science, fire and combustion, symbiosis and natural enemies, rocks and minerals, anatomy, disability and science, computer and virus, ancient animals, deep sea, sleep science, microscopy and observation, life safety, magic science, veterinary medicine, hazardous substances, relativity theory, standard science, Drones, Climate Change, Medical Devices, Amazon Why?Science collects/transmits/synchronizes/stores user accounts in order to register and provide restoration services. You can download and save content from the app to your device.
(주)예림당 · com.yearimdigital.why.science
- Signature matches the Google Play version Details
At a glance
- Latest version
- v1.2.22 (62)
- Updated
- Jul 17, 2025 (1 year ago)
- APK size
- 19.5 MB
- Requires
- Android 4.4+ (API 19)
- CPU support
- Any (no native code)
- Graphics
- OpenGL ES 2.0+
- Category
- Education (app)
- Listed since
- Apr 24, 2022 (at least)
- Permissions
- 13 (4 sensitive)
- Website
- yearim.kr
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Why? 과학 is an app by (주)예림당 in the Education category, listed since at least April 2022. It has no native code, so it runs on any Android processor.
It asks for 13 permissions, 4 of them sensitive, including read phone status and identity, read phone numbers and read shared storage. The app offers in-app purchases through Google Play.
What's new in v1.2.22
Description
From the listing uploaded by “appupdater”.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 17, 2025.
Store checks and file details
- Developer signature verified Jul 17, 2025
- Validated against Google Play Jul 17, 2025
- Signed byC=kr
- Signing certificate (SHA-1)8F:F9:15:3E:3B:23:4B:13:D6:E5:80:3B:0B:2E:40:AC:1A:75:D8:99
- File MD5118442b38090cd1035bb98d79c92ef1b
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (13)
Why? 과학 requests 13 permissions, 4 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read phone numbers Sensitive android.permission.READ_PHONE_NUMBERS
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Change network state android.permission.CHANGE_NETWORK_STATE
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read privileged phone state android.permission.READ_PRIVILEGED_PHONE_STATE
- Science maps receive (custom) com.yearimdigital.why.science.permission.MAPS_RECEIVE
- Science write settings (custom) com.yearimdigital.why.science.permission.WRITE_SETTINGS
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
- Wi-Fi android.hardware.wifi
Why? 과학 APK: questions and answers
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is Why? 과학 free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the Why? 과학 APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. After downloading, check that the file's MD5 is 118442b38090cd1035bb98d79c92ef1b.