Measure light color temperature and intensity
Measure color temperature in Kelvin with ±2-8% accuracy. View color spectrum from 360nm to 800nm. Display RGB values and luminance. Save and export measurement data. Compare light sources side by side.
Showing 721–740 of 1,000 ranked alternatives.
Enes Bugra Yenidunya
Measure distances with your iPhone
Measure distances and areas using AR technology. Tap to mark points and calculate lengths. View measurements in inches or centimeters. Save and share measurement data. Sync with other devices for project management.
koji kamogawa
Practice CW QSOs with real call signs
Practice amateur radio CW QSOs with realistic simulations. Choose from 599BK, Rubber Stamp, or Contest styles. Adjust call signs, signal levels, and CW speeds. Simulate pile-ups with up to three stations. Set own station parameters for CQ calls.
koji kamogawa
Practice CW QSOs with realistic settings
Simulate amateur radio QSOs with realistic call signs and signal levels. Adjust CW speed and set own station parameters. Support pile-up with up to 3 simultaneous stations. Include 599BK, Rubber Stamp, and contest-style QSOs.
Dave Scruton
Color becomes music with this instrument.
The app converts color into music using a unique algorithm that analyzes RGB values, luminance, and chromatic values. These are converted into musical notes using tonal scales and musical keys, played by a built-in synthesizer and sample player.
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