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Controllers fail quietly: sticks drift, triggers bottom out, presses never register. One guided test reads the raw input Android reports — buttons, sticks, triggers, drift, dead zone, circularity, polling rate, jitter, rumble — and scores the pad. Check a used pad before you buy. Confirm a new one before the return window closes. No PC, no dongle, no browser. Free with ads. Pro is a one-time unlock: advanced stick analysis, CSV export, health trends, saved vibration patterns.

Android games are mostly touch-only, so your controller sits there. Gamepad Pro turns its buttons, both sticks and L2/R2 into taps on screen — a separate layout for every game. Drag each control where it should press, save, launch from the app. No root, no PC, no ADB. Made for shooters, MOBA, racing and open-world games where you move and aim at once. Free: 2 layouts per game, 3 games, with ads. One-time Pro removes the ads and unlocks the rest. 500,000+ installs, 24 languages.

Photo apps make you choose: upload your library, or lock photos into a folder you can never search again. Safelight does neither. Photos go into an AES-256 vault unlocked by PIN or fingerprint, and you find them by describing them — "passport", "the whiteboard" — because the model runs on the phone. The app requests no INTERNET permission at all. Sharing strips GPS and EXIF without re-encoding: a receipt for an accountant, a listing photo for a buyer. Free, no ads, no account, no sync.