DotDiary is a private period and cycle tracker that stores everything in Apple Health on your iPhone — no account, no ads, no tracking, no subscription. There's no server holding your cycle data, so nothing to breach, sell, or subpoena. It's still a full tracker: single-tap logging, predictions with confidence ranges, symptom, mood and fertility tracking, trends, and a doctor-ready PDF. Free import from Flo or Clue. Free to use, with a one-time $2.99 Pro unlock, no subscription.
BlockSeeker watches and controls your whole home mining fleet — Bitaxe/NerdAxe, Avalon Nano and Antminer — from one app over your local Wi-Fi. Live hashrate, temps and power; per-type alerts and auto-recovery for stuck or overheating miners; solo block odds and pool earnings; electricity cost; plus a home-screen widget and Live Activity. No account, no cloud, no tracking — nothing leaves your network.
Electroute plans EV road trips around your battery: it models real range across the whole route (elevation, speed, weather) and inserts the fewest, best charging stops for your car. Then it navigates you there fully offline, with CarPlay. No account, no tracking, and no subscription. Pro is a one-time unlock, and the app is free to download.