Unit circle. Trigonometry

Interactive graphs of trigonometric functions and the Unit circle

Erlan Amanatov · com.erkprog.trigonometryvisact

Not rated yet 10K+ downloads v2.2.0 5.7 MB Android 5.0+ PEGI 3 · Everyone

Download APK 5.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v2.2.0 (13)
Updated: Aug 28, 2025 (1 year ago)
APK size: 5.7 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Mar 28, 2021 (at least)
Permissions: 9
Developer contact: [email protected]

About this APK

Unit circle. Trigonometry is an app by Erlan Amanatov in the Education category, listed since at least March 2021. It has no native code, so it runs on any Android processor.

It asks for 9 permissions, none of them sensitive. It asks for the same permissions as version 2.1.0. The app can read the advertising ID that ad and analytics services use.

What's new in v2.2.0

V 2.1.0: - Performance improvements - Bug fixes

Description

From the listing uploaded by “appupdater”.

This educational application helps to understand the core concepts of the Unit circle, Trigonometric functions, and their relations by using interactive graphs. Move a point on the unit circle to see how different angles (in degrees or radians) affect sine and cosine. Key features: • Interactive graphs • Compare the graphs of trigonometric functions • Description of functions • Explore how function parameters affect the graph • Table of values for special angles • Trigonometric formulas and identities • Quiz Other trigonometric functions will be added soon. Please don't hesitate to contact us for any kind of questions or comments via e-mail: [email protected]

Version history

3 versions are listed, going back to v2.0.1.

v2.2.0 LATEST Aug 28, 2025 5.7 MB TRUSTED v2.1.0 Aug 28, 2025 5.7 MB TRUSTED v2.0.1 Sep 16, 2023 5.4 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Aug 28, 2025.
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 2 other versions checked

Store checks and file details

Developer signature verified Aug 28, 2025
Validated against Google Play Aug 28, 2025
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)04:B4:0B:E9:4E:4D:EC:F1:87:63:12:A2:44:10:A2:55:0C:4A:4D:0D
File MD598ceb305438ee23edb12463ed12c1f4c
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 (9)

Unit circle. Trigonometry 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.erkprog.trigonometryvisact.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
Portrait screen android.hardware.screen.portrait