Full 2-way call audio recording suite for Android phones and tablets. Capture both sides of WhatsApp calls, cellular phone calls, and business VoIP conversations with crystal clarity.
Google restricted background audio capture starting in Android 10. To capture incoming WhatsApp caller voices, install Cube ACR (the main app) together with Cube ACR Helper (the companion accessibility connector service).
Primary recording engine, audio library player, contact matcher, cloud backup, and recording settings interface.
Download Cube ACR APK
System accessibility companion service required to bridge audio capture and caller identity for VoIP apps (WhatsApp, Telegram, Slack).
Download Helper APKFollow these 4 simple steps to set up VoIP call recording on your Android device.
Download and install SquareCircle-Cube-ACR.apk first, then install SquareCircle-Cube-ACR-Helper.apk. If prompted by Android, allow "Install from unknown sources" for your browser.
Open Cube ACR and grant requested permissions: Microphone (to record audio), Phone (for regular calls), Contacts (to show caller names), and Notifications.
Open Android Settings → Accessibility → Installed Apps. Tap Cube ACR App Connector and toggle it ON. This enables WhatsApp call detection.
Set battery usage for both Cube ACR and Cube ACR Helper to "Unrestricted" so Android does not kill the recording service when your screen is locked.
Engineered for high reliability, security, and exceptional sound quality.
Records both sides of the conversation with hardware audio balance tuning and volume boosting options.
Starts recording seamlessly the instant a phone or WhatsApp call connects, with zero manual button pressing.
Recordings remain strictly inside your device. Protect the entire app with a PIN code, fingerprint, or password.
Automatically sync recordings to Google Drive, Dropbox, or custom local folders for safe-keeping.
Tag calls with location metadata so you can see where you were when receiving or placing important calls.
Maintain an exclusion list of contacts whose calls you do not want to automatically record.
Verify that your downloaded APK files match the exact official builds without alterations.