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NoiseLedger: dB Meter Log — privacy-first sound level meter for iPhone with FAST/SLOW response, MIN/LEQ/MAX, FFT spectrum, session history, PNG and CSV export. iOS only, no ads, no internet.

Wall Scanner & Metal Detector — iPhone app that uses the built-in magnetometer to find iron studs, steel pipes, rebar behind drywall. Real microtesla readout, figure-8 calibration, EMF mode. iOS only, no ads, no internet.

BarcodeWake — Android alarm clock that forces you out of bed. Dismiss only by scanning a real barcode (toothpaste, cereal). Anti-cheat watchdog, no snooze, no ads, no internet.

Fast, privacy-first QR code scanner for Android and iOS. Decode QR codes from camera or photos, with local-only scan history. No ads, no sign-up, no tracking, no analytics SDK. Built with Flutter. Shows full decoded URL before opening to prevent phishing. Free download on Google Play and the App Store.

Offline voice changer app for Android and iOS with 24 voice presets (Helium, Robot, Demon, Ghost, Megaphone, Telephone and more), drag-and-drop effect chain, pitch/reverb/echo/distortion sliders, recording, audio import, direct sharing to WhatsApp/Telegram/Discord. Built with Flutter, native DSP. No ads, no internet, no tracking. Free download on Google Play and the App Store.

Instant flashlight app for Android and iOS with under 300ms tap-to-light, LED torch and screen-light modes (white/warm/red), international Morse SOS signal, adjustable strobe (1-20 Hz), auto-off timer, and home screen widget. Built with Flutter. No ads, no tracking, no network permission. Free download on Google Play and the App Store.