App Store
Version 2.9 · 2026-04-12
Fixes issue with microphone not working in iOS 26.4+.
Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.
Not yet tested.
The store currently lists version 2.9, updated 2026-04-12.








Store screenshots supplied by the developer.
Fine Tuner is a light-weight, minimalistic tuner with a user interface optimized for guitar, bass, violin, ukulele, banjo and other string instruments. It utilizes your device's built-in microphone. The app includes dozens of guitar tunings as well as several tunings for a variety of other instruments. Fine Tuner also has the ability to tune to a custom note and can be used to tune almost any instrument.
The free version of the app includes standard guitar, drop d, and double drop d tunings.
Features
- Built in tunings for guitar, bass, 4-string / 5-string banjo, ukulele, violin, viola, cello, mandolin, cuarto, charango.
- Support for changing the standard A tuning (e.g. 432 Hz).
- Auto mode for minimal app interaction while tuning.
- Dark mode.
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
No review analysis published for this app.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
Not yet tested. No analysis has been run for this app, so there is no version or date to report.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
Fixes issue with microphone not working in iOS 26.4+.
fine-tunerWhat the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.