Chemistry Notes (Offline)

Chemistry Notes app is specially designed for the CBSE class 12 students

Quiz 24by7 · com.techzone.higher.chemistrynotes

Not rated yet 50K+ downloads v2.0.2.10 18.2 MB Android 5.0+ PEGI 3 · Everyone

Download APK 18.2 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.0.2.10 (24)
Updated: Jul 5, 2026 (3 months ago)
APK size: 18.2 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Jul 29, 2021 (at least)
Permissions: 9
Website: preparation247.in
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Chemistry Notes (Offline) is an app by Quiz 24by7 in the Education category, listed since at least July 2021. It has no native code, so it runs on any Android processor.

Since version 2.0.2.8, the APK grew from 14.3 MB to 18.2 MB and the minimum Android version rose from 4.1 to 5.0. It asks for 9 permissions, none of them sensitive. Compared with version 2.0.2.8, it adds 3 new permissions (“Access adservices ad id”, “Access adservices attribution” and “Access adservices topics”) and drops 1 (“Run at startup”). The app can read the advertising ID that ad and analytics services use.

What's new in v2.0.2.10

Enhancement

Description

From the listing uploaded by “appupdater”.

Chemistry Notes app is specially designed for the CBSE class 12 students to help them prepare for their exams. It also helps them throughout the year in their study and revision. This app contains notes of all the chapters included in the CBSE Class 12 NCERT Book: Chapter 1: Solid State Chapter 2: Solutions Chapter 3: Electrochemistry Chapter 4: Chemical Kinetics Chapter 5: Surface Chemistry Chapter 6: General Principles and Processes of Isolation of Elements Chapter 7: The p – Block Elements Chapter 8: The d – and f – Block Elements Chapter 9: Coordinate Compounds Chapter 10: Haloalkanes and Haloarenes Chapter 11: Alcohols, Phenols, and Ethers Chapter 12: Aldehydes, Ketones, and Carboxylic Acids Chapter 13: Amines Chapter 14: Biomolecules Chapter 15: Polymers Chapter 16: Chemistry in Everyday Life Features - Expert Chemistry notes for all the chapters. It is your best study guide. - The app is lightweight and doesn't occupy a lot of space on your phone. - Use the Class 12 Chemistry CBSE NCERT Notes app without having an internet connection

Version history

2 versions are listed, going back to v2.0.2.8. Since v2.0.2.10 it requires Android 5.0+.

v2.0.2.10 LATEST Jul 5, 2026 18.2 MB TRUSTED v2.0.2.8 Jul 25, 2024 14.3 MB TRUSTED

All 2 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jul 5, 2026.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
Same certificate as the other version checked

Store checks and file details

Developer signature verified Jul 5, 2026
Validated against Google Play Jul 5, 2026
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)EC:7E:C1:30:3A:AC:1B:DD:61:29:F2:7D:FB:B3:20:FF:DB:C5:E4:97
File MD5a3adb553c8d94090fd51fad8a7e069a2
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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

Chemistry Notes (Offline) requests 9 permissions, none of them sensitive.

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
Internal broadcast protection (app-defined) com.techzone.higher.chemistrynotes.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run foreground services android.permission.FOREGROUND_SERVICE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Chemistry Notes (Offline) APK: questions and answers

Is there a version of Chemistry Notes (Offline) for older Android phones?

The current version needs Android 5.0 or later. Version 2.0.2.8 is the newest listed build that installs on Android 4.1 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 2.0.2.8 · All versions

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 the Chemistry Notes (Offline) 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. It is signed with the same certificate as the other version checked. After downloading, check that the file's MD5 is a3adb553c8d94090fd51fad8a7e069a2.