Hey Product Hunt! 👋 I'm excited to share **Tidetuner**—a tuner app I built to make pitch visualization both intuitive and beautiful. 🎯 **Why I built this:** Most tuner apps feel clinical and utilitarian—just a needle and a number. I wanted something that shows *how* your instrument sounds, not just whether it's in tune. Inspired by professional strobe tuners, Tidetuner uses wave-based visualization to reveal overtones, resonance, and the character of each note in real-time. ✨ **What makes it different:** - **Real-time overtone visualization** (Piano, Steel Pan modes) - **Custom tuning profiles** for any instrument (beyond A=440Hz) - **Adjustable in-tune thresholds** (±0.1 to ±10 cents) - **All processing on-device**—no audio data ever leaves your phone 🎵 **Who it's for:** Musicians, instrument makers, and anyone who cares about sound quality. Whether you're tuning a concert grand piano, setting historical temperaments, or crafting custom instruments, Tidetuner gives you the clarity and control you need. 📱 **Try it free:** 7-day trial unlocks all features. Core tuning remains free forever—no forced upgrades. 🔒 **Privacy-first:** Zero network dependencies. Your microphone recordings stay on your device. Period. I'd love to hear your feedback! What features would make this more useful for you? And if you're a musician or instrument maker, I'm especially curious how you'd use overtone visualization in your workflow. Terms & Privacy: https://nekonb.github.io/tide-tu... Thanks for checking it out! 🙏

Tidetuner

Tune with precision: visualize overtones in real-time.

Tune with precision: visualize overtones in real-time.