MathLock

Math reminder (timer): solve arithmetic tasks regularly Math Time!

Dmitry Mogilev · dm.mathlock

Not rated yet 1K+ downloads v2.10 1.1 MB Android 6.0+ PEGI 3 · Everyone

Download APK 1.1 MB All versions

At a glance

Latest version: v2.10 (13)
Updated: Mar 4, 2023 (3 years ago)
APK size: 1.1 MB
Requires: Android 6.0+ (API 23)
CPU support: Any (no native code)
Category: Education (app)
Listed since: Apr 20, 2021 (at least)
Permissions: 4 (1 sensitive)
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

MathLock is an app by Dmitry Mogilev in the Education category, listed since at least April 2021. It has no native code, so it runs on any Android processor.

It asks for 4 permissions, 1 of them sensitive: display over other apps.

What's new in v2.10

Improvements

Description

From the listing uploaded by “appupdater”.

MathLock - mathematical task reminder / timer. Train your brain by solving arithmetic tasks. Features: • Arithmetic operations: + addition - subtraction * multiplication / division • A lot of Settings: number of operations in one task, number of tasks, max values, available operations

Security & authenticity

Security rating: Trusted

Signing certificate

Certificate with Google's generic name Google Play App Signing gives the keys it manages this name, but anyone can put it in a certificate, so this alone proves nothing.

Store checks and file details

Developer signature verified Mar 4, 2023
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)9F:CD:8D:DC:93:51:A9:AC:3A:62:7C:14:48:83:D7:ED:A9:BE:4E:F1
File MD5f4a5f0eef42cfd5bb0442ddd1ef00860
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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (4)

MathLock requests 4 permissions, 1 of them sensitive.

Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Internal broadcast protection (app-defined) dm.mathlock.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Use exact alarm android.permission.USE_EXACT_ALARM

Required hardware & features

Basic touch input android.hardware.faketouch

MathLock APK: questions and answers

Can I install this APK over the version I already have?

Only if it is signed with the same certificate as the copy on your phone and isn't an older version. If Android says “App not installed”, the certificates differ; uninstalling your copy first works but deletes its data unless it is backed up.

Is the MathLock APK safe?

No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. After downloading, check that the file's MD5 is f4a5f0eef42cfd5bb0442ddd1ef00860.