“Metronome at this tempo”
It finds the recording's tempo and allows for your speed. Or turn on a click that follows the video in phase, loop included.
An iPhone app for guitarists
Tuner, metronome, slow-downer and looper, video practice and a practice log in one app, for one payment. No subscription, no add-on packs, no extra purchases.
Why one app
Separate apps often each come with their own subscription or Pro upgrade, and none of them know about each other. Here everything lives in one place and shares what it knows.
Make it yours
Pick a style and the tools change with it: how the tuner reads, how the metronome moves, the surface behind them, the type, even the app icon. Then change any part on its own. All of it is free.
What's inside

A steady needle and ±1 cent accuracy, even on an 8-string's low F♯ and a bass's low B. A string turns green after half a second in tune, with a light tap.

Clicks are placed to the audio sample and don't drift, even over ten minutes. It keeps playing on the lock screen, and you can see and feel the beat too.

Record your teacher or a friend, or bring in any video or audio from Photos or Files. Slow it down without changing pitch, loop the hard bar, and watch what each hand does.

Set a goal for 1, 2, 6 or 12 months. It fills in only from real practice: the speed you reach on a loop, the tempo on the metronome, the minutes you play. There is no “mark as done”.
What separate apps can't do
Every link is one tap and always a suggestion. The app never switches anything on its own.
It finds the recording's tempo and allows for your speed. Or turn on a click that follows the video in phase, loop included.
It guesses the tuning from the lowest notes and opens the tuner in it. It always says how sure it is.
The speed ladder starts a loop at 60% and speeds up every few repeats. The speed you reach goes into your goal by itself.
Try it here
Each string starts out of tune. The needle shows by how many cents and glides to zero with the sound, as if you were turning the peg. The app does the same through the mic.
Price
You'll never be asked to buy anything else: no monthly fee, no packs, no “Pro+”.
Questions
No. You pay $4.99 once and everything unlocks for good. There are no other purchases in the app at all.
Yes, and it's free: five styles, three tuner displays, three metronome visuals, surfaces, any accent color, light or dark, and five app icons.
No. There's no sign-up and everything works offline. Internet is only needed for YouTube links and the purchase itself.
Electric and acoustic guitar (6, 7 or 8 strings), classical nylon guitar, and bass (4, 5 or 6 strings).
YouTube links open in YouTube's official player with speed (0.25–2×) and an A–B loop. For the full Studio (pitch kept, tempo detection, the click) record or import your own video.
Any iPhone on iOS 17 or later. 240 fps slow-mo works on models whose camera supports it.
They stay on your phone only. You can save your whole library as a .zip in Files and restore it on a new phone.
14: English, Georgian, Russian, Ukrainian, German, French, Spanish, Portuguese, Italian, Turkish, Polish, Japanese, Korean and Chinese.
Privacy policy · October 21, 2026
The app collects nothing and sends nothing anywhere. There is no account, server, analytics, advertising or third-party SDK.
YouTube links open in YouTube's official player, where YouTube's own terms and privacy policy apply. The app does not save or analyze those videos.
Apple handles purchases; we never see payment details. A .zip backup is stored only where you save it. Deleting the app deletes everything.
b.ostaev@gmail.com