Instrument Picker
Tuner out of pitch
Tuning picker
Tuner in pitch
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PushTuner – Chromatic tuner for guitar, bass, ukulele & violin

Tagline: A fast, accurate tuner for every string instrument in your case.

What it does PushTuner is a real-time chromatic tuner for guitar, bass, ukulele and violin. It listens through the microphone, detects pitch instantly and shows how far each string is from the target note, so you can tune quickly whether you're at home, rehearsing or on stage.

How it's built

React Native with Expo Real-time pitch detection using expo-audio's PCM stream and a pitch-detection library, for low-latency, on-device analysis with no audio leaving the phone, RevenueCat for subscriptions and paywall management

PushTuner uses RevenueCat to manage three purchase options:

Weekly subscription for casual players Yearly subscription with a 7-day free trial Lifetime one-time purchase for players who dislike subscriptions

RevenueCat handles entitlements, receipt validation and cross-device purchase restoration, so I could focus on the tuning experience instead of billing infrastructure.

Why I built it Most tuner apps either do one instrument well or are cluttered with ads. I wanted one clean, accurate tuner that works across the instruments musicians actually own, with a fair pricing model that includes a lifetime option.