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ios-app

Free magnetometer-based stud finder + metal detector for iPhone and Android. Microtesla readout, figure-8 calibration, EMF mode. No ads, fully offline. By Lapnito.

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.

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.

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.

Fast, offline document scanner for Android and iOS. Auto edge detection, perspective correction, multi-page PDF export, enhancement filters (B&W, Magic, grayscale). iOS version adds signature and redaction tools. Built with Flutter. Free, no ads, no tracking, no cloud upload. Free download on Google Play and the App Store.

Precise digital bubble level, spirit level, inclinometer, and angle gauge for Android and iOS. Bullseye, horizontal, vertical, and slope measurement with degrees, percent, mm/m, and ratio units. Built with Flutter. OK/NEAR/OUT tolerance guidance, 180-degree calibration, Fast/Smooth/Precision filtering. Free download on Google Play and the App Store.

MimiLog: Baby & Infant Log — free, offline baby diary for ages 0-3. Feeding, sleep, diaper, pump, growth and fever tracking. No ads, no signup, no subscription. iOS + Android.

Fast offline percentage calculator for Android and iOS. Task-shaped templates for sale price, original price, discount, markup, margin, VAT, percentage change, reverse percentage, tip split, compound growth, and percentage points. Built with Flutter. Free, no ads, no tracking, no account. Free download on Google Play and the App Store.

Caffeine Quit Streak Tracker — free iPhone app for quitting coffee, energy drinks, soda. Real-time streak counter, science-backed withdrawal phase timeline, money-saved tracker, milestone celebrations. No ads, no account, no in-app purchases. By Lapnito.

Precision color picker app for Android and iOS. Capture exact pixel colors from your camera or photos in HEX, RGB, HSL, and CMYK formats. Build palettes, check contrast, generate color harmonies, and match RAL paint codes. Built with Flutter. Free, no ads, no tracking. Export to CSS, JSON, or PNG for designer-to-developer handoff. Free download on Google Play and the App Store.

Offline trip cost calculator for Android and iOS. Compute fuel costs from distance + consumption + price, split gas between carpool passengers, add tolls and parking, save vehicles and routes, review trip history. Both metric (km, L/100 km) and imperial (mi, mpg) units. Built with Flutter. No ads, no tracking, no account, no cloud sync. Free download on Google Play and the App Store.

Offline compass app for Android and iOS with True North (magnetic declination via World Magnetic Model 2025), real-time microtesla field-strength meter, magnetic interference detection, and Pin Direction bearing lock. Built with Flutter. No ads, no tracking, fully offline. Free download on Google Play and the App Store.

LumenLeaf: PPFD Grow Light — free iPhone PAR/PPFD/DLI meter for monstera, fiddle leaf, succulents, hydroponics, grow tents. Camera RAW + printer-paper diffuser, per-light-source coefficients. No ads, no account. By Lapnito.

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

Birthday Counter: Days Until — offline birthday countdown for iOS with Home Screen and Lock Screen widgets, milestone alerts and exact age. Free, no ads, no tracking, no account.

Boat Knot Meter: Anchor Watch — iPhone GPS knot meter, anchor drift alarm, no-wake alarm, GPX export, 0.1-knot precision. Marine GPS for sailors, fishers, kayakers. Zero ads, zero accounts, fully offline.

HypoNavi: Mortgage Calculator — iPhone and Android app to compare mortgage offers, model refinance break-even, stress-test post-fixation rate hikes, and run extra-payment scenarios. Standard annuity formula. Free, offline, no tracking. By Lapnito.

Pocket Seismograph — iPhone vibration meter and Mercalli intensity logger. Real-time accelerometer trace, MMI estimate (Wald-1999), three processing modes, calibration wizard, CSV export. Free, offline, no ads. By Lapnito.

Video to Photo: Save Frames — extract full-resolution stills from any video up to 8K, frame-accurate stepping, batch export, sharpness detection, EXIF preserved. Free iOS app, offline, no watermark.

Image Converter: Offline Batch — convert HEIC, WebP, AVIF, JXL, RAW and more entirely on device. Unlimited batch, compress to target size, EXIF control. Free iOS app, no upload, no ads.