Blackbox: 24/7 Audio Recorder

Never miss an important moment again. Blackbox records audio continuously in the background — just like a dashcam for your life. It silently keeps the last few hours of audio, automatically freeing up space, until you decide something is worth keeping. WHAT IS BLACKBOX? Blackbox is a privacy-first audio recorder that runs 24/7 in the background. It maintains a rolling buffer of your chosen duration — automatically deleting old audio to save storage. When something important happens, one tap locks it forever. That's it. CORE FEATURES Always-On Background Recording Set it once, forget it. Blackbox records in a continuous loop while you go about your day. Old audio is auto-deleted. You stay in control of what gets kept. Lock & Protect Important Recordings One tap locks any recording and shields it from automatic deletion. Perfect for legal evidence, key conversations, or anything you never want to lose. Flexible Retention Settings Choose how far back Blackbox remembers — from 1 hour to 1 year. Your phone, your rules. Optimized Audio Quality 16kHz to 48kHz recording quality. Source profiles optimized for meetings, voices, or outdoor environments. Automatic storage management keeps everything running smoothly. 100% Private & Offline All recordings stay on your device No cloud uploads, ever No account required No data collection No ads WHO IT'S FOR Legal & Business Document consultations, meetings, and negotiations with time-stamped audio proof. Always be ready when it matters most. Journalists & Researchers Never lose an interview again. Capture every word, verify every quote, with crystal-clear audio evidence. Students Record every lecture without the stress of note-taking. Listen fully in the moment — review everything later. Personal Safety In disputes, harassment situations, or emergencies, have immediate audio documentation of exactly what was said. HOW IT WORKS Start recording — runs silently in the background Blackbox keeps your last X hours automatically Something important happened? Tap to lock it Share via WhatsApp, email, Google Drive, and more OUR PRIVACY COMMITMENT Unlike cloud-based recorders, Blackbox processes and stores everything locally on your device. Your conversations. Your device. Your control. No exceptions. No compromise. PREMIUM (Optional) Extended retention (up to 1 year) Priority support REQUIREMENTS Android 7.0 or higher Microphone permission