QRSFinder

Easily find the QRS PNOmation systems on your network.

QRS Music Technologies · com.QRS.QRSMusic

Not rated yet 10K+ downloads v5.0.55 136 MB Android 7.0+ PEGI 3 · Everyone

Download APK 136 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v5.0.55 (5055)
Updated: Oct 3, 2026 (5 days ago)
APK size: 136 MB
Requires: Android 7.0+ (API 24)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Category: Business (app)
Listed since: Nov 4, 2020 (at least)
Permissions: 9 (3 sensitive)
Website: qrsmusic.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

QRSFinder is an app by QRS Music Technologies in the Business category, listed since at least November 2020. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 9 permissions, 3 of them sensitive: precise location, approximate location and read phone status and identity. Compared with version 5.0.51, it adds 2 new permissions: “Use biometric hardware” and “Use fingerprint hardware”.

What's new in v5.0.55

Changes for Android API Target

Description

From the listing uploaded by “appupdater”.

A handy app that will help you find the QRS PMII , PNO3, and PNO4 systems on your network. Works great for Pianos in Stand Alone or Network mode. Just launch the app to be connected in a single PNO environment, or receive a listing of all PNO systems on your network by serial number. Just Tap the serial number to load the PNO web app.

Version history

4 versions are listed, going back to v5.0.49.

v5.0.55 LATEST Oct 3, 2026 136 MB TRUSTED v5.0.51 Sep 12, 2025 132.1 MB TRUSTED v5.0.50 Sep 11, 2025 125.9 MB TRUSTED v5.0.49 Aug 27, 2025 125.9 MB TRUSTED

All 4 versions

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Oct 3, 2026.
Certificate issued to “QRS Music Technologies, Inc.” This is the certificate of the Google Play version.
Same certificate as the 3 other versions checked

Store checks and file details

Developer signature verified Oct 3, 2026
Validated against Google Play Oct 3, 2026
Signed byCN=Parker Welch, OU=QRS, O="QRS Music Technologies, Inc.", L=Seneca, ST=PA, C=US
Signing certificate (SHA-1)86:2F:62:E4:85:A3:1C:8A:9A:44:7F:97:54:ED:89:79:A0:67:AF:C6
File MD5afa2bdd5b09167d069ce865a38bc67c5
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 (3 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (9)

QRSFinder requests 9 permissions, 3 of them sensitive.

Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Full network access android.permission.INTERNET
Internal broadcast protection (app-defined) com.QRS.QRSMusic.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Use biometric hardware android.permission.USE_BIOMETRIC
Use fingerprint hardware android.permission.USE_FINGERPRINT
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE

Required hardware & features

Basic touch input android.hardware.faketouch
Location android.hardware.location
Wi-Fi android.hardware.wifi

QRSFinder APK: questions and answers

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 QRSFinder 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 3 other versions checked. After downloading, check that the file's MD5 is afa2bdd5b09167d069ce865a38bc67c5.