Equation Editor, Forum, Study

Equation Editor, Forum, Study: Group Study and Exam Preparation

Tinkutara · com.tinkutara.mathchat

5.0 out of 5 (1 rating) 500K+ downloads v2.307 4.9 MB Android 6.0+ PEGI 12 · Low Maturity

Download APK 4.9 MB All versions

Signature matches the Google Play version Details

Watch the Equation Editor, Forum, Study trailer on YouTube

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At a glance

Latest version: v2.307 (2307)
Updated: Jul 25, 2026 (2 months ago)
APK size: 4.9 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Feb 16, 2021 (at least)
Permissions: 8 (2 sensitive)
Website: facebook.com/tinkutara
Developer contact: [email protected]

About this APK

Equation Editor, Forum, Study is an app by Tinkutara in the Education category, listed since at least February 2021. It has no native code, so it runs on any Android processor.

Since version 2.281, the APK grew from 3.1 MB to 4.9 MB and the minimum Android version rose from 4.4 to 6.0. It asks for 8 permissions, 2 of them sensitive: read shared storage and modify shared storage. It asks for the same permissions as version 2.306.

What's new in v2.307

Fix an issue where some users are not able to view formula

Description

From the listing uploaded by “appupdater”.

This is an equation editor for phone and tablets. You can write maths documents and including geometric and physics circuit diagrams. Written document can be saved as PNG or PDF. App functionality is available without in-app purchase. You can write notes, discuss on forum etc.

Version history

5 versions are listed, going back to v2.281. New versions arrive here about every month. Since v2.304 it requires Android 6.0+.

v2.307 LATEST Jul 25, 2026 4.9 MB TRUSTED v2.306 Jul 19, 2026 4.9 MB TRUSTED v2.304 Jun 8, 2026 4.9 MB TRUSTED v2.299 May 3, 2026 3.2 MB TRUSTED v2.281 Jun 15, 2023 3.1 MB TRUSTED

All 5 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jul 25, 2026.
Certificate issued to “SchoolNextIndia” This is the certificate of the Google Play version.
Same certificate as the 4 other versions checked

Store checks and file details

Developer signature verified Jul 25, 2026
Validated against Google Play Jul 25, 2026
Signed byCN=Deepti Jain, OU=SchoolNextIndia, O=SchoolNextIndia, L=Hyderabad, ST=Andhra Pradesh, C=IN
Signing certificate (SHA-1)18:09:4C:60:0E:C9:55:BA:8A:6A:99:0D:79:DD:05:18:30:5B:F7:ED
File MD5dd16cea85b2d3013a1bc02038e8c9fc6
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 (4 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (8)

Equation Editor, Forum, Study requests 8 permissions, 2 of them sensitive.

Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.tinkutara.mathchat.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait

Equation Editor, Forum, Study APK: questions and answers

Is there a version of Equation Editor, Forum, Study for older Android phones?

The current version needs Android 6.0 or later. Version 2.299 is the newest listed build that installs on Android 5.0 and later. Get version 2.299 · 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 Equation Editor, Forum, Study 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 4 other versions checked. After downloading, check that the file's MD5 is dd16cea85b2d3013a1bc02038e8c9fc6.