Compass · Bubble Level Live

A precise digital compass and bubble level in one app, wrapped in a classic brass instrument theme. A brass compass over a parchment nautical chart; a brass level over a drafting blueprint — the look and feel of vintage navigation tools. Powered entirely by your device sensors — no internet connection is required for the core features. ■ Features • Digital compass — azimuth + 8-point cardinal direction (N/NE/E/SE/S/SW/W/NW). Brass dial with red/navy needle illustration. • Bubble level — real-time pitch (front/back) and roll (left/right) visualization. Bubble color reflects state (green / yellow / red). • Sensor calibration — fine-tune offsets yourself (Settings → Calibration). · Compass: slider for azimuth offset (±30°), or one-tap "Set current as 0°". · Level: place the device on a flat surface and tap "Apply as level" to capture the current reading as an offset. · Calibration is saved persistently. • Classic vintage theme — fixed brass + cream palette, consistent regardless of the system dark mode. • Nautical chart (CARTA MARINA) and drafting blueprint background illustrations reinforce the instrument feel. • Settings screen redesigned as rounded bubble cards. • Auto-rotation aware — UI and sensor coordinates stay consistent in portrait and landscape. • Foldable/tablet aware — the dial and frame resize automatically to fit the available vertical space. • Calibration prompt — alerts you when magnetic sensor accuracy drops and recommends a figure-8 motion. • Smooth animations — 50Hz sensor input interpolated to your 60fps display. ■ Privacy Compass does not collect any personal data on its own. The only data sent off-device is what Google/AdMob requires to serve and measure ads. In the EEA the GDPR consent prompt is shown, and you can change consent any time under Settings → Ad Privacy Options. ■ Ads • App-open ad: at most once every 15 minutes when bringing the app to the foreground (frequency managed by AdMob). • Adaptive banner: a single banner pinned to the bottom of the screen. • Prefer no ads? Use Settings → In-App Purchase → Remove Ads. One-time purchase, restorable on other devices via "Restore Purchases". ■ Permissions • Internet: for ads, in-app review, in-app billing, and the open-source license screen. • Advertising ID: used only for ad measurement (not used after the Remove Ads purchase). Questions or feedback: [email protected]