Chemistry Quiz & eBook vCat.416
APK · 23.8 MB · version code 453 · Android 7.0+ · uploaded Apr 17, 2025
- Same certificate as vCat.424, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is vCat.424, uploaded Nov 25, 2025 — about 7 months after this one.
- Size: this file is 23.8 MB; the latest is 23.8 MB (66 B larger).
- Both versions request the same permissions.
File information
- Version
- vCat.416 (453)
- Uploaded
- Apr 17, 2025
- Size
- 23.8 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 6759fcdcbd37b0551bb023755b3654a0
- Signing certificate (SHA-1)
- 8D:B3:34:BA:ED:FC:43:B5:0C:81:90:A7:8C:FB:E6:9D:A5:2E:F1:40
- Signed by
- CN=Jassila Sikkandar, OU=TabExam, O=Sana Edutech Private Limited, L=Bangalore, ST=Karnatka, C=IN
- File name
- com-sanaedutech-chemistry-quiz-453-70466480-6759fcdcbd37b0551bb023755b3654a0.apk
- Package
- com.sanaedutech.chemistry_quiz
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in vCat.416
• New user interface, loaded with reviewed materials
• Updated quiz and eBooks in latest version.
• All contents are unlocked and provided FREE of cost, considering student benefit
• Feature addition to send quiz question and answers via WhatsApp.
Permissions (16)
This version requests 16 permissions, 1 of them sensitive.
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.sanaedutech.chemistry_quiz.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Show notifications android.permission.POST_NOTIFICATIONS
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Sana Edutech Private Limited” This is the certificate of the Google Play version.
- Same certificate as vCat.424, which matches Google Play vCat.424
Store checks
- Developer signature verified Apr 17, 2025
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself.
How to install Chemistry Quiz & eBook on Android 7.0+
You'll need about 47.5 MB of free space.
- Download the APK — tap Download APK above (23.8 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap com-sanaedutech-chemistry-quiz-453-70466480-6759fcdcbd37b0551bb023755b3654a0.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be 6759fcdcbd37b0551bb023755b3654a0. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Chemistry Quiz & eBook — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 7.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.