TwinNotes - Ear Training Game

Concentration-like game that teaches you to recognize music notes by ear.

Sharpness.net · net.sharpness.twinnotes

Not rated yet 1K+ downloads v1.0.5 3 MB Android 5.0+ PEGI 3 · Everyone

Download APK 3 MB All versions

Signature matches the Google Play version Details

TwinNotes - Ear Training Game screenshot 1

TwinNotes - Ear Training Game screenshot 2

TwinNotes - Ear Training Game screenshot 3

TwinNotes - Ear Training Game screenshot 4

TwinNotes - Ear Training Game screenshot 5

TwinNotes - Ear Training Game screenshot 6

At a glance

Latest version: v1.0.5 (5)
Updated: Jul 5, 2026 (3 months ago)
APK size: 3 MB
Requires: Android 5.0+ (API 21)
CPU support: Any (no native code)
Category: Education (app)
Permissions: 9
Website: sharpness.net
Developer contact: [email protected]

About this APK

TwinNotes - Ear Training Game is an app by Sharpness.net in the Education category. It has no native code, so it runs on any Android processor.

Since version 1.0.3, the APK grew from 1.7 MB to 3 MB and the minimum Android version rose from 4.0.3 to 5.0. It asks for 9 permissions, none of them sensitive. Compared with version 1.0.4, it adds 5 new permissions: “Access adservices ad id”, “Access adservices attribution”, “Access adservices topics” and 2 more. The app can read the advertising ID that ad and analytics services use.

What's new in v1.0.5

Android 13 support

Description

From the listing uploaded by “appupdater”.

TwinNotes is a concentration-like game that teaches to recognize music notes by ear and improves your tonal memory. Click on an empty card to hear music tone. A yellow border appears around it. Find a card with a note sign that matches this tone and click on it. If tones matches, pair of cards disappears. If not, red border appears around both cards for 3 seconds. Continue until there are no cards on the screen.

Version history

3 versions are listed, going back to v1.0.3. Since v1.0.5 it requires Android 5.0+.

v1.0.5 LATEST Jul 5, 2026 3 MB TRUSTED v1.0.4 Oct 27, 2023 1.6 MB TRUSTED v1.0.3 Mar 27, 2023 1.7 MB TRUSTED

All 3 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Jul 5, 2026.
Certificate issued to “Sharpness.net” 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 Jul 5, 2026
Validated against Google Play Jul 5, 2026
Signed byCN=Alexander Sulimov, OU=Development, O=Sharpness.net, L=?berlingen, ST=BW, C=DE
Signing certificate (SHA-1)21:83:18:2B:8E:FB:A2:D8:C8:FA:19:4C:95:B9:F6:17:A0:EF:0C:15
File MD549a6235353deeed0d11706918aa62a80
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)

TwinNotes - Ear Training Game 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) net.sharpness.twinnotes.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

TwinNotes - Ear Training Game APK: questions and answers

Is there a version of TwinNotes - Ear Training Game for older Android phones?

The current version needs Android 5.0 or later. Version 1.0.4 is the newest listed build that installs on Android 4.0.3 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.0.4 · 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 TwinNotes - Ear Training Game 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 49a6235353deeed0d11706918aa62a80.