System One

A platform where artist booking agencies manage gigs and tours

System One SaaS GmbH · com.application.systemone.systemone

Not rated yet 5K+ downloads vAccordion 82.6 MB Android 10+ PEGI 3 · Everyone

Download APK 82.6 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: vAccordion (311)
Updated: Mar 8, 2026 (7 months ago)
APK size: 82.6 MB
Requires: Android 10+ (API 29)
CPU support: x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
Graphics: OpenGL ES 2.0+
Category: Business (app)
Listed since: Mar 13, 2021 (at least)
Permissions: 21 (5 sensitive)
Website: systemonesoftware.com
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

System One is an app by System One SaaS GmbH in the Business category, listed since at least March 2021. 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 21 permissions, 5 of them sensitive, including camera, find accounts on the device and read shared storage.

What's new in vAccordion

- Timetable times now stay on one line - Shows now display their duration ("e.g. '1 hour')

Description

From the listing uploaded by “appupdater”.

System One is a platform where artist booking agencies can manage gigs and tours on behalf of the artists they represent. This app gives artists and tour managers access to their full itinerary while they are on the road. In order to use this app, you need a login account with System One.

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Mar 8, 2026.
Certificate issued to “System One” This is the certificate of the Google Play version.

Store checks and file details

Developer signature verified Mar 8, 2026
Validated against Google Play Mar 8, 2026
Signed byCN=Beatriz Macuco, OU=Mobile Dev, O=System One, L=Berlin, ST=Berlin, C=DE
Signing certificate (SHA-1)23:1E:96:57:F1:51:12:75:35:E3:64:D4:22:8A:76:1F:A7:59:AD:95
File MD58e05f1f25a74525f6e0c9163eac36ae1
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. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (21)

System One requests 21 permissions, 5 of them sensitive.

Camera Sensitive android.permission.CAMERA
Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
Access notification policy android.permission.ACCESS_NOTIFICATION_POLICY
Control vibration android.permission.VIBRATE
Download without notification android.permission.DOWNLOAD_WITHOUT_NOTIFICATION
Full network access android.permission.INTERNET
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
Internal broadcast protection (app-defined) com.application.systemone.systemone.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Prevent the device from sleeping android.permission.WAKE_LOCK
Receive push notifications com.google.android.c2dm.permission.RECEIVE
Run at startup android.permission.RECEIVE_BOOT_COMPLETED
Run foreground services android.permission.FOREGROUND_SERVICE
Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
Show notifications android.permission.POST_NOTIFICATIONS
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

Camera android.hardware.camera
Basic touch input android.hardware.faketouch
Wi-Fi android.hardware.wifi

System One 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 System One 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. After downloading, check that the file's MD5 is 8e05f1f25a74525f6e0c9163eac36ae1.