← Patina

Support

Patina · LangSongs, LLC

Patina is a guitar practice app for iPhone that listens to you play. It runs note drills, sequences and tempo ladders, chord and ear training, a tuner and a metronome, and scores what it hears through the microphone so you can see where you are actually improving. The tuner and metronome are free; everything else is unlocked by a one-time Full Trainer purchase.

Getting help

Email nick@gripto.computer. A real person reads it. Tell us what you were doing, what you expected, and what happened instead.

Three things that fix most problems

• Run calibration. Settings › Calibration measures the delay between your phone hearing a note and the app registering it. Until you have run it, timing scores are guesses. If your timing feedback looks consistently early or late, run it again.
• Set mic sensitivity in a quiet room. Settings › Set sensitivity listens to your room so the app knows the difference between a note and noise. Do it somewhere quiet, with the guitar you actually practise with. If notes are being missed, or if the app hears notes you did not play, this is almost always the fix.
• Use Restore Purchases after a reinstall. If you have bought Full Trainer and the app shows it as locked — after reinstalling, on a new phone, or on a second device — tap Restore Purchases on the paywall (it is also in Settings under Full trainer). Make sure you are signed in to the same Apple Account you bought it with.

Reporting a bug

Open Settings › Diagnostics and read the Build card — it shows the app, tree and engine build stamps. Include those in your email. Without them we cannot tell which version you are on, and a bug fixed two builds ago looks exactly like a bug we have never seen.

Also useful, if you have them:

• Which mode you were in, and which step went wrong.
• Your guitar and tuning, and whether the room was noisy.
• Whether you had run calibration and mic sensitivity.
• For audio problems: Diagnostics has a Record 10 s button that captures ten seconds and hands the file to the iOS share sheet, so you can email it to us. Nothing is sent unless you share it yourself.

Purchases and refunds

Full Trainer is a one-time purchase through Apple — no subscription, no account, no sign-in. Refunds are handled by Apple at reportaproblem.apple.com; we cannot issue them. If something is broken, email us anyway.

Privacy

Your audio is analysed on the phone and never uploaded. Optional, anonymous usage data can be turned off in Settings › Send usage data. The full details are in the Privacy Policy.