Chemistry Lectures

Accessible Chemistry Lectures for Remote Learning

duhnnae · com.duhnnae.chemistryquimica

Not rated yet 50K+ downloads v1.49 13.8 MB Android 8.1+ PEGI 3 · Everyone

Download APK 13.8 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.49 (49)
Updated: Jun 26, 2026 (3 months ago)
APK size: 13.8 MB
Requires: Android 8.1+ (API 27)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Jun 1, 2021 (at least)
Permissions: 13 (1 sensitive)
Website: duhnnae.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Chemistry Lectures is an app by duhnnae in the Education category, listed since at least June 2021. It has no native code, so it runs on any Android processor.

Since version 1.41, the APK grew from 10.4 MB to 13.8 MB and the minimum Android version rose from 6.0 to 8.1. It asks for 13 permissions, 1 of them sensitive: approximate location. Compared with version 1.43, it adds 2 new permissions: “Access adservices attribution” and “Access adservices topics”. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v1.49

Chemistry lessons and lectures. Added study section. Request tasks for your level. Added electrochemistry. Added notes for videos.

Description

From the listing uploaded by “appupdater”.

Comprehensive Remote Learning for Chemistry. This application offers a robust platform for remote chemistry education, providing access to a curated collection of video lessons and lectures. These resources originate from esteemed universities and educators globally, enabling users to pursue chemistry studies from the convenience of their homes. You will find in this app lessons like: - Coulomb's Law - Periodicity - Mass Spectrometry - Light and Matter - Solids and Liquids - Solutions - Matter Changing States - Pure Substances - Energy - Quantum Mechanical Model - Valence Electrons and Isotopes - Radioactivity - Electron Capture and X-Rays - Nuclear Fission - Electronegativity All video content is streamed directly from their original YouTube channels, thereby attributing views and subscribers to the respective content creators and owners. Should any material within the application be identified as copyright-protected, please contact us for immediate removal.

Version history

3 versions are listed, going back to v1.41. Since v1.49 it requires Android 8.1+.

v1.49 LATEST Jun 26, 2026 13.8 MB TRUSTED v1.43 Jul 4, 2024 12.6 MB TRUSTED v1.41 Jul 13, 2026 10.4 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jun 26, 2026.
Certificate issued to “duhnnae.com” This is the certificate of the Google Play version.
Same certificate as the 2 other versions checked

Store checks and file details

Developer signature verified Jun 26, 2026
Validated against Google Play Jun 26, 2026
Signed byCN=Daniel C?rdoba, OU=duhnnae.com, O=duhnnae.com, L=Terrassa, ST=Barcelona, C=es
Signing certificate (SHA-1)AC:4B:39:75:09:FC:F5:C5:31:B9:25:2A:64:CA:A4:68:6E:F2:D3:A6
File MD537fd38d7f97fdb78954683198cd153f6
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 (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (13)

Chemistry Lectures requests 13 permissions, 1 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
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.duhnnae.chemistryquimica.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
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
Location android.hardware.location
Portrait screen android.hardware.screen.portrait
Wi-Fi android.hardware.wifi

Chemistry Lectures APK: questions and answers

Is there a version of Chemistry Lectures for older Android phones?

The current version needs Android 8.1 or later. Version 1.41 is the newest listed build that installs on Android 6.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.41 · 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 Chemistry Lectures free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Chemistry Lectures 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 2 other versions checked. After downloading, check that the file's MD5 is 37fd38d7f97fdb78954683198cd153f6.