Violin Tuner
Professional tuner for violin.
TrueStudio · com.truestudio.violintuner
- Signature matches the Google Play version Details
At a glance
- Latest version
- v2.0.0 (50)
- Updated
- Nov 27, 2025 (10 months ago)
- APK size
- 35.2 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- ARM 32-bit, ARM 64-bit
- Category
- Music & Audio (app)
- Listed since
- Mar 19, 2021 (at least)
- Permissions
- 4 (1 sensitive)
- Website
- truestudio.org
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Violin Tuner is an app by TrueStudio in the Music & Audio category, listed since at least March 2021. It includes native code for ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
Since version 1.7.7, the minimum Android version rose from 4.0 to 6.0. It asks for 4 permissions, 1 of them sensitive: record audio. Compared with version 1.7.7, it adds 1 new permission (“Control vibration”) and drops 2 (“View network connections” and “Prevent the device from sleeping”).
What's new in v2.0.0
Description
From the listing uploaded by “appupdater”.
Version history
2 versions are listed, going back to v1.7.7. Since v2.0.0 it requires Android 6.0+.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Nov 27, 2025.
- Certificate issued to “truestudio” This is the certificate of the Google Play version.
- Same certificate as the other version checked
Store checks and file details
- Developer signature verified Nov 27, 2025
- Validated against Google Play Nov 27, 2025
- Signed byCN=truestudio, OU=truestudio, O=truestudio, L=shenyang, ST=liaoning, C=CN
- Signing certificate (SHA-1)59:C5:29:B7:8F:EA:4F:90:55:0A:A2:60:6B:DD:E8:0C:9F:D4:CA:39
- File MD5699977f45fd81747738bd3581468de12
- 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 (1 other version compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (4)
Violin Tuner requests 4 permissions, 1 of them sensitive.
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) com.truestudio.violintuner.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Required hardware & features
- Basic touch input android.hardware.faketouch
- Microphone android.hardware.microphone
- Portrait screen android.hardware.screen.portrait
Violin Tuner APK: questions and answers
Is there a version of Violin Tuner for older Android phones?
The current version needs Android 6.0 or later. Version 1.7.7 is the newest listed build that installs on Android 4.0 and later. It is an old build: apps that rely on online services may no longer connect when they are this old. Get version 1.7.7 · 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 Violin Tuner 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 other version checked. After downloading, check that the file's MD5 is 699977f45fd81747738bd3581468de12.
