Riff Studio

Build your setlist, adjust pitch and speed of songs and play & sing along! \m/

brAzzi Labs · net.brazzi64.riffstudio

5.0 out of 5 (2 ratings) 500K+ downloads v5.2.122 25.7 MB Android 7.0+ PEGI 3 · Everyone

Download APK 25.7 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.2.122 (122)
Updated: Aug 22, 2026 (2 months ago)
APK size: 25.7 MB
Requires: Android 7.0+ (API 24)
CPU support: x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS, MIPS 64-bit
Category: Music & Audio (app)
Listed since: Dec 18, 2022 (at least)
Permissions: 15 (2 sensitive)
Website: producthunt.com/posts/riff-studio
Developer contact: [email protected]

About this APK

Riff Studio is an app by brAzzi Labs in the Music & Audio category, listed since at least December 2022. It includes native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit, MIPS and MIPS 64-bit, so it runs on practically every phone.

Since version 3.2.9, the APK grew from 21.9 MB to 25.7 MB and the minimum Android version rose from 4.4 to 7.0. It asks for 15 permissions, 2 of them sensitive: display over other apps and read media audio. Compared with version 4.0.7, it adds 1 new permission: “Run at startup”. The app offers in-app purchases through Google Play.

What's new in v5.2.122

- The Pro features of Riff Studio are free from now on. Thank you for everyone’s support over the years! - Bug fixes & performance improvements

Description

From the listing uploaded by “appupdater”.

Made by musicians, for musicians. Riff Studio lets you build a setlist of the songs you want to practice, set their pitch and speed independently and before hand, so you can focus on playing your instrument or singing along! You can also adjust the song parameters at any time and in real-time: either set the pitch without affecting the speed, change the speed without affecting the pitch, or adjusting both together. The pitch will be set in semitones, and the speed as a percentage of the original speed. It also provides bookmarking and A-B looping functionality to go through those difficult parts until you get them right. You can also use the quick-jump feature to jump back to the last point you started playing from in a song, seamlessly. Besides from the in-app experience, Riff Studio also lets you save or export the adjusted songs to your device in MP3 format. Riff Studio is great for musicians practicing songs that require alternative tunings, or that are too fast to play along initially, and will help them get all the way to 250%. The user interface is clean and touch targets are large, which enables an easy interaction that doesn't require fine motor skills, so you can focus your dexterity on the instrument you are playing instead of on operating the app itself. Riff Studio is in continuous development, eager for to user feedback and feature suggestions. Please shoot me a line at [email protected] with your ideas! Features: - Pitch shifting - change music pitch up or down in semi-tones - Time stretching or BPM changing - change audio speed within an ample range of the original speed - Provides high quality time stretching and pitch shifting, back-ported to support older Android versions - A-B looper - mark a section of the song to loop indefinitely and practice the hard parts - Save or export your adjusted songs as MP3 format - Free with no restrictions on this music speed controller - No need to wait for your local audio to decode, being able to play it instantly with real-time audio speed and pitch adjustment. Slow down audio speed or change music pitch instantly for several audio format types. Please note that the songs you add need to be in your device.

Version history

3 versions are listed, going back to v3.2.9. Since v5.2.122 it requires Android 7.0+.

v5.2.122 LATEST Aug 22, 2026 25.7 MB TRUSTED v4.0.7 Feb 28, 2026 30.6 MB TRUSTED v3.2.9 Apr 2, 2026 21.9 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 22, 2026.
Certificate issued to “brAzzi Labs” 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 Aug 22, 2026
Validated against Google Play Aug 22, 2026
Signed byCN=Bruno Azzinnari, OU=Mobile Development, O=brAzzi Labs, L=San Francisco, ST=California, C=US
Signing certificate (SHA-1)7C:61:63:8F:9E:0D:D1:76:F8:43:EA:93:FE:69:96:7A:C6:5B:8A:2F
File MD52311b5bc30c577b4f4d90fb4bd617c37
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 (15)

Riff Studio requests 15 permissions, 2 of them sensitive.

Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Read media audio Sensitive android.permission.READ_MEDIA_AUDIO
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Control vibration android.permission.VIBRATE
Foreground service media playback android.permission.FOREGROUND_SERVICE_MEDIA_PLAYBACK
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) net.brazzi64.riffstudio.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch

Riff Studio APK: questions and answers

Is there a version of Riff Studio for older Android phones?

The current version needs Android 7.0 or later. Version 4.0.7 is the newest listed build that installs on Android 5.0 and later. Get version 4.0.7 · 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 Riff Studio free?

The APK is free to download, but the app offers in-app purchases through Google Play.

Is the Riff Studio 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 2311b5bc30c577b4f4d90fb4bd617c37.