Measure objects using screen size, augmented reality, or printed rulers. Place virtual on surfaces with ARKit. Print rulers via AirPrint. Compare printed results with on-screen measurements. No ads, in- purchases, or tracking.
Tune strings with real-time pitch display in Hz. Adjust A4 calibration between 415 Hz and 466 Hz. Use tuning fork feature and advanced settings via in- purchase. LED indicator highlights tuned strings. Supports standard and drop D tunings.
Tune with real-time pitch display in Hz. Adjust A4 calibration between 415 Hz and 466 Hz. Use tuning fork and advanced settings via in- purchase. LED indicator lights up tuned strings automatically. Supports standard and drop D tunings.
Tune strings with real-time frequency display in Hz. Adjust A4 temperaments between 392Hz and 466Hz. Includes tuning fork and advanced settings via in- purchase. Uses microphone for input. LED indicator shows tuning status.
Displays the current time and date in large, readable text. Swipe up to access settings. Choose between 12-hour and 24-hour time format. Select date display options. Toggle visibility of the date and seconds.
Locate a lost Oura by detecting its Bluetooth signal. View signal strength indicators to pinpoint the location. Avoid unnecessary searches in cluttered areas.
Tune guitars with real-time pitch display in Hz. Adjust A4 calibration between 415 Hz and 466 Hz. Use tuning fork and advanced settings via in- purchase. LED indicator lights up tuned strings automatically. Supports standard and drop D tunings.
Calculate altitude using GPS, ASTER, or barometer (iPhone 6 and later). Display average altitude from GPS and ASTER data. Show peaks, compass, and distance grid on an integrated map. Support Apple Watch. Choose unit of measurement.