IntonationPro: Tuner & Pitch
Real-time intonation trainer
About
This app provides real-time visual feedback on musical pitch, helping users of string, wind, or vocal instruments improve their intonation. It analyzes performance, showing deviations from the target note in cents and color-coding accuracy.
What's New in IntonationPro
1.3
September 21, 2026
• Singer mode: train your voice with a reference tone, held notes, clean onsets and your vocal range – vibrato is judged by its center and upper edge. • Key recognition (iOS 27): IntonationPro now recognizes the key from your first phrases and suggests it. The analysis runs entirely on your device. • Siri & Shortcuts: start a practice session or open your progress by voice, from Spotlight or with the Action button. • iPad: progress, settings, sharing and key selection now open as large pages. • Help: a detailed user manual and quick explainer cards in Settings › Help. • Built for iOS 27.
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$9.99
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FAQ
What is IntonationPro?
IntonationPro is a real-time visual pitch trainer designed for musicians and singers. It listens to your instrument or voice and displays your accuracy on a color-coded curve, showing if you are sharp or flat by how many cents.
Is IntonationPro free to use?
IntonationPro offers a free version with 5 minutes of practice per day, including all features. For unlimited practice time, a one-time premium purchase is available.
Does IntonationPro work offline?
Yes, IntonationPro is designed to work completely offline. Your audio is analyzed on your device and is never recorded or uploaded, ensuring privacy.
What instruments can I use with IntonationPro?
IntonationPro is suitable for a wide range of instruments including violin, viola, cello, double bass, woodwinds, brass, and voice. It also supports extended low ranges for deeper instruments.
How does IntonationPro help singers?
The singer mode in IntonationPro provides a clear view focused on your voice, with a reference tone, analysis of held notes, onsets, and vibrato. It also tracks your vocal range per session and over days.
What tuning systems does IntonationPro support?
IntonationPro supports three tuning systems: equal temperament, just intonation, and Pythagorean. It also allows for concert pitch adjustments from 415 Hz to 446 Hz.
How often is IntonationPro updated?
The latest version, 1.3, was last updated on September 21, 2026. Updates typically introduce new features and improvements based on user feedback and technological advancements.
Is IntonationPro suitable for beginners?
Yes, IntonationPro is beneficial for all levels of musicians and singers. Its visual feedback helps beginners understand and correct their pitch, while advanced users can refine their intonation with detailed analysis.
