RTTA, short for Real Time Tuning Analysis, is a groundbreaking method for tuning instruments and analyzing intonation. RTTATuner brings this innovative technique to iPhone users, offering a unique approach compared to traditional instrument tuners. Instead of analyzing single notes, RTTATuner provides real-time intonation analysis for complete music pieces or scales, making it ideal for instruments with variable pitch like the flute.

By simply recording your performance, RTTATuner displays the tuning of each note on a live-updating graph. Users can select from various musical temperaments, define custom temperaments, adjust pitch standards, temperament transitions, display preferences, and note filters. This app caters to musicians of all levels and instrument makers, allowing for detailed intonation analysis and exportable results in PDF format.