At a glance
- Latest version
- v1.30c (22)
- Updated
- Oct 8, 2025 (1 year ago)
- APK size
- 10.4 MB
- Requires
- Android 4.0+ (API 14)
- CPU support
- x86 32-bit, ARM (legacy), ARM 32-bit
- Category
- Music (game)
- Listed since
- Jan 27, 2020 (at least)
- Permissions
- 6
- Developer contact
- [email protected]
About this APK
Magic Black Piano: Twenty one is a game by Luan Mai in the Music category, listed since at least January 2020. It includes native code only for x86 32-bit, ARM (legacy) and ARM 32-bit, so it won't run on 64-bit-only phones such as recent Pixels.
It asks for 6 permissions, none of them sensitive.
What's new in v1.30c
Description
From the listing uploaded by “catappult”.
Security & authenticity
Signing certificate
- Certificate issued to “Luan Mai” The developer's name — though anyone can put any name in a certificate.
Store checks and file details
- Developer signature not checked yet Jan 27, 2020
- Antivirus scan passed Sep 27, 2020
- Signed byCN=, OU=, O=Luan Mai, C=
- Signing certificate (SHA-1)10:1F:A6:CB:45:53:45:59:7A:E0:FC:C1:28:D5:FC:28:83:E6:8F:DD
- File MD5e02f887bd4497ca2d953c409cf66b959
- Uploaded by “catappult” Platinum tier · 1,377 followers · uploading since 2018
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 (6)
Magic Black Piano: Twenty one requests 6 permissions, none of them sensitive.
- Advertising (custom) com.asfoundation.ADVERTISING
- Billing (custom) com.appcoins.BILLING
- Context write use app feature survey (custom) com.samsung.android.providers.context.permission.WRITE_USE_APP_FEATURE_SURVEY
- Full network access android.permission.INTERNET
- Prevent the device from sleeping android.permission.WAKE_LOCK
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
- Portrait screen android.hardware.screen.portrait
Magic Black Piano: Twenty one 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 Magic Black Piano: Twenty one APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Unknown. After downloading, check that the file's MD5 is e02f887bd4497ca2d953c409cf66b959.