This app offers a visually engaging and accurate tuning experience for various stringed instruments. It provides real-time feedback with color and motion, and supports a wide range of instruments and tunings. Designed for simplicity and privacy, it allows users to tune quickly and effectively.
1.2
November 1, 2026
Lodestone is ready for iPhone Duo. Closed, the tuner fills the wider screen. Open, the ring sits on one page and your strings on the other. Stand it half open on a table or music stand, and the note stays big up top while the strings lie flat under your hand. Also new: on any iPhone in landscape, the ring and strings sit side by side. And your screen now stays awake while Lodestone is open, so it won't dim or lock while you tune.
MoreLodestone supports tuning for guitar, bass, ukulele, and violin. It also includes a chromatic mode for instruments like cello, viola, banjo, and mandolin.
Lodestone's pitch detection is validated to within 0.05 cents on test tones, ensuring high accuracy even for challenging low strings on instruments like a 5-string bass.
No, Lodestone is a one-time purchase with no ads and no subscription required. You pay once and have full access to all features.
Yes, Lodestone is designed for simplicity. It opens listening immediately, and its visual cues like color and motion clearly indicate how close you are to being in tune.
Lodestone is private by default. It only uses your microphone to hear the note you're playing and does not record, store, or send any of your data.
Lodestone is available for iPhone and iPad devices.
The latest version is 1.1, and the app was last updated on September 28, 2026. Updates typically bring improvements and new features.
Lodestone is available for a one-time purchase of $0.99.
Accurate Double Bass Tuner App
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