This appears to be a modified/custom version. APK files from unofficial sources can contain malicious code. I recommend sticking to official app stores or the developer's verified website.
For now, however, millions of users rely on as their daily driver for call logging, evidence gathering, and never forgetting a spoken detail.
Always verify APK files with tools like VirusTotal before installation to ensure they are free of malware. Automatic Call Recorder 6.55-sam APK for Android
The represents a peak moment in Android utility apps—before subscriptions, before Google’s overreach, and before ads ruined user experience. If you manage to get it running, protect it like a digital asset. It will serve you faithfully for years.
Download Automatic_Call_Recorder_v6.55-sam.apk . Verify the file size (typically 8–12 MB). Do not open it yet. This appears to be a modified/custom version
The interface is intuitive. Recordings are sorted by date, contact name, or phone number. You can:
Users can choose from three default settings: For now, however, millions of users rely on
Make a test call to a friend or voicemail. After hanging up, open ACR. You should see your recording. Play it back. If you hear both sides clearly, success!
In ACR Settings, find "Enhance recordings" and toggle it ON. Also, increase the "Recording volume gain" to +10dB. Avoid using speakerphone during recording.