synxthesia

About

Synxthesia is a small studio building tools at the intersection of music, education, and technology.

Our core users are musicians, people picking up a new instrument, and the educators who teach them.

We take niche domains we care about and make the tools we wished existed, then share them so others can use them too.

Products

NoFret Intonation app icon
NoFret Intonation In development

NoFret Intonation helps string players of all ages and skill levels practice intonation with a clear visual model of the fingerboard, whether you are learning alone, coaching a student, or tuning together in an ensemble.
Explore target pitches with an interactive fingerboard, staff notation, reference drones, and live microphone feedback for focused practice in just intonation and equal temperament.

iOS · Android

Privacy Policy

Last updated: July 16, 2026

NoFret Intonation is built to run entirely on your device. We do not collect, store, sell, or share your personal information, and the app does not require an account to use.

Microphone

NoFret requests microphone access solely to detect the pitch of your instrument in real time. Audio is analyzed on your device as it is heard and is never recorded, saved, or transmitted anywhere.

Files you import

If you load a notation or configuration file, it is read locally on your device. NoFret does not upload these files.

Analytics & tracking

NoFret contains no analytics, advertising, or third-party tracking SDKs. Because nothing leaves your device, there is no usage data for us or anyone else to see.

Children's privacy

NoFret does not knowingly collect any information from anyone, including children.

Changes to this policy

If this policy changes, we will update the date above and post the revised version here.

Contact

Questions? Reach us at hello@synxthesia.com.

Contact

hello@synxthesia.com

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