It hears every string
From the lowest Shahtar to the highest Bachi. Pluck, and it names the note, the gap, and what to do about it — then turns green the moment the string sits right and stays there.
Afghan Rabab · Kabuli & Pashto tunings
The tuner that knows your Rabab.
Not a general guitar tuner with a needle. Rabab Tuner draws your instrument — Katay, Bam, Zer, two or three Shahtar and up to fifteen Bachi — listens while you pluck, and tells you which peg to turn, which way, and how far.
Spelled rubab, rabab or robab depending on who taught you, and known in Kabul as the Kabuli rubab. Same instrument, one app.
Coming soon toGoogle Play
Coming soon to theApp Store
Works without internet
Your playing never leaves the phone
Two months free, then subscription
No ads, no tracking
Bam · A3turns green when it's right
13 Bachidrawn to match your rail
Tighten or loosenin plain words
Live preview — this is the app running, not a video
18strings on screen
±5¢how close is in tune
24real Rabab plucks
8tabla taals
24ragas & maqams
0ads, ever
Everything in the app
Nine tools, one instrument.
Rabab Tuner started as a tuner. It grew into the practice room the instrument really needs — accompaniment, stroke practice, raga help, and looking after the wood itself.
Built to your Rabab
Two or three Shahtar. Eleven to fifteen Bachi. Four to eight frets. Play at 440, at 444 with a tabla, or wherever your ensemble sits. The instrument on screen changes to match yours.
Tune by ear, no mic
Press and hold any string to hear exactly what it should sound like — made from real recordings of a real Rabab. Say no to the microphone and the app still does its job.
Harmonium & tabla
Naghma in the Pashto styles — Bairami, Logari, Kesturi, Pari — and eight taals, four of them played on a real tabla. Slow it down or speed it up and the drum still sounds like itself.
Use your own tabla
Play your harmonium or your tabla for one minute and the app turns it into a loop you can practise with — cleaned up and trimmed so it repeats without a bump.
Noisy room? Fixed
Sit quietly for thirty seconds once. After that the app knows what your fan, aircon or traffic sounds like, and stops hearing it — so it hears only your Rabab.
Watch your right hand
Every stroke named Tari or Chap, counted, and timed against the tabla — by something that has learned your hand, not a stranger's.
Which raga is that?
Play freely and the app draws the notes you keep coming back to, then ranks the closest ragas and maqams — twenty-four of them, quarter tones included.
Look after the wood
Dry air loosens pegs and damp air softens the skin. Tell the app your room and it warns you which one you are heading for, and what to do about it.
Tuning
It talks about pegs, not numbers.
Tap a string on the photo and the view slides up to its peg. Pluck it, and the app answers the way a teacher would: Loosen peg · sharp, then Close — tiny turns, then a green In tune with a little burst of light and a buzz in your hand.
- It knows which string you played — just pluck, and the right one lights up.
- Fretted notes too — play a melody and it tells you "Katay · fret 3", not just open strings.
- It walks you through — Katay, Bam, Zer, the Shahtar, then every Bachi down the rail.
- Play-along check — with nothing selected, every string you sound glows on the photo as you play.
Accompaniment
A harmonium and tabla that stay together.
Both are made inside the app and locked to the same cycle, so they never slide apart — play for fifteen minutes or fifteen hours and the Sam still lands where it should. The harmonium has that gentle shimmer real ones have, because it uses two slightly different reeds for every note, just like the instrument on your floor.
- Naghma or drone, any key, fine tuning either side, four reed sounds and the Sa–Pa bed.
- Any tempo, same drum — slow it right down or push it up and the tabla keeps its own pitch and sound.
- Let it breathe — add a touch of human unevenness so the cycle sounds played, not printed.
- Keeps playing while you tune — shrink the console and a small player floats over the tuner.
Live preview — this is the app running, not a video
Practice
Practice that keeps score for you.
The app hears each stroke and says whether it was Tari or Chap. It learns the difference from your hand: play a short set of each, or just correct it with a tap when it gets one wrong, and it gets better at reading you.
- How fast you're playing — strokes per second, plus a row of your last twelve.
- Ahead or behind the beat, in milliseconds, while the tabla runs.
- The tabla doesn't confuse it — even played out loud, the app knows the drum from your strokes.
- A report at the end — what improved, what to work on, and this week against last.
Live preview — this is the app running, not a video
Raga practice
Play a phrase. It names the raga.
Twelve bars fill up as you play — one for each note above your Sa — showing where you have been spending your time. From that the app works out which raga or maqam you are in, and it waits until it is sure rather than guessing after three notes.
- Twenty-four to choose from — the thaats, the maqam families with their quarter tones, and the five-note ragas.
- It tells you what would settle it — "dwell on d" — instead of picking one at random.
- Notes that don't belong in the leading match are marked, so you can hear yourself stray.
- A phrase to try, written the way a teacher would say it, for whichever raga is leading.
The instrument itself
Dry air ruins Rababs. This watches for it.
Set the humidity and temperature where the instrument lives and the app works out how much moisture the wood is holding — then warns you about the two things that actually damage a Rabab: a pegbox drying out until the pegs slip, and a skin going soft and dull in damp air.
- It tells you what to do — case, damp sponge, silica pack, warm up slowly, loosen the strings in heat.
- Which way it will drift — flat, sharp or steady. No made-up precision.
- A check-up for the body — pluck each string once and the app compares how your Rabab rings today with how it rang before.
- Tomorrow's weather, if you want it — type a town and see when the air turns risky. It asks before it goes online.
Screenshots
Made for a dim practice room.
Dark everywhere, amber when something needs you, green when it's right.
Scroll sideways · nine of the app's screens
For the curious
Why it feels quick.
The listening part is written close to the metal, so the screen answers as fast as your ear does. You don't need any of this to use the app.
Listening
- Answersabout 50 times a second
- Rangelow Shahtar to top Bachi
- In tune meanswithin 5 cents
- Holds steadyas the string settles
- Ignoresits own reference tones
Phones
- Android7.0 and newer
- iPhone & iPadiOS 13 and newer
- Microphoneraw, no phone "clean-up"
- Your settingsstay on the phone
- Old phonesfully supported
The clever bits
- Noise removallearns your room
- Stroke readinglearns your hand
- String voiceslearn your instrument
- All of iton the phone, offline
- If a phone is slowit simply does less
Nothing here needs a fast phone or a new one — the app quietly uses whatever your handset can give it.
Questions
Before you install
Do I need internet?
No. Tuning, reference tones, harmonium and tabla, practice, raga help, noise removal and the check-up all work with no connection. The only thing that ever goes online is the optional weather look-up in Instrument care — and it asks you first, and sends nothing but the town name you type.
What does it cost?
You start with a two-month free trial of the whole app — every feature, nothing held back. After the trial, keeping it needs a subscription, and the price for your country is shown by Google Play or the App Store before you agree to anything. There are no ads, and nothing extra to buy inside the app.
The subscription renews on its own until you cancel it, and you cancel in your own store account — not by asking us. Full details are here.
How do I cancel?
In your store account, and it takes a few seconds. On Android: Play Store → your profile → Payments & subscriptions → Subscriptions → Rabab Tuner → Cancel. On iPhone or iPad: Settings → your name → Subscriptions → Rabab Tuner → Cancel. You keep access until the period you have already paid for ends, and cancelling during a free trial means you are never charged.
Does it work if I don't allow the microphone?
Yes. Press and hold any string and the app plays exactly what that string should sound like, made from real Rabab recordings, so you can tune by ear. The microphone is only needed for live listening, and nothing is locked behind it.
My Rabab has three Shahtar and fifteen Bachi. Will it fit?
That is the whole point. Choose two or three Shahtar, eleven to fifteen Bachi, four to eight frets, and which side your pegs are on. The picture redraws with exactly that many pegs and strings, and you can change any target pitch by hand. Own more than one Rabab? Save each as its own setup and switch between them.
Which tunings are included?
Standard E–A–D at 440, a concert setting at 444 for playing with tabla, Pashto folk D–A–D, a lower, easier D–G–C, and Custom. The standard setup has eighteen strings: three melody, two Shahtar and thirteen Bachi.
Is my playing recorded?
No. The app listens, works out the pitch, and throws the sound away. The one exception is when you choose to record a minute of your own harmonium or tabla to practise with — that loop is saved on your phone, and deleting it deletes the file.
How well does it read my strokes and my raga?
Honestly: they are good guesses, and the app says so on screen. Telling Tari from Chap by sound alone is hard, because the difference lives in the first split second of the stroke — a short practice drill teaches it your hand and lifts it a long way. For ragas, the app stays quiet until it is fairly sure, instead of guessing early.
Is this for the rubab or the rabab?
Both — they are the same instrument. Rubab, rabab and robab are all ways of writing the same Pashto and Dari word in English letters, and you will see every one of them used by players, teachers and shops. In Kabul it is often called the Kabuli rubab. The app is built for that instrument: the short-necked, plucked, waisted lute with gut frets, three main strings and a rail of sympathetic Bachi.
One thing it is not built for: the rebab of the Arab world and Southeast Asia. Despite the shared root of the name, that is a bowed spike fiddle — a different instrument, differently made and differently played.
What frequency should I tune my rabab to?
There is no single right answer, and any chart that gives you one is overselling it. What is fixed is the shape: the three melody strings sit in perfect fourths. Where that stack sits in absolute pitch is up to you, your teacher, the singer you are accompanying — and your instrument. A larger, longer-scale rubab reaches a comfortable working tension at a lower tonic than a small one, and string gauge and the condition of the skin move it further.
The app ships with E3 · 164.81 Hz, A3 · 220.00 Hz and D4 · 293.66 Hz as a default, along with D–G–C and C#–F#–B, and you can set your own tonic and it will work everything else out from there. We wrote the long version up in the rubab tuning guide.
When is it out?
Version 1.0 is being prepared for Google Play and the App Store. Send a message if you would like to hear when it goes live, or if you play a Rabab the setup doesn't describe yet.
What it costs
Two months free, then one subscription.
No ads. No second version with the good bits taken out. No add-ons to buy. One subscription covers the whole app, and you can stop it in seconds.
The free trial
When you install it you get two months free — the complete app, every feature, nothing held back, and no card charged while the trial runs.
Cancel before it ends and you pay nothing. If you don't cancel, it becomes a paid subscription at the price your store showed you.
After the trial
One subscription, billed by Google Play or Apple through the account you already have. It renews on its own until you cancel it.
The price in your own currency is shown by the store before you agree to anything. Prices differ by country and can change, which is why they are quoted there and not here.
Cancelling
In your own store settings, in a few seconds. You never have to email us to stop paying — and we couldn't stop it for you even if you did.
You keep full access until the period you have paid for ends. Nothing you made is deleted: your setups, recordings and history stay on your phone.
What the subscription includes
Everything: tuning and reference tones, the harmonium and tabla, recording your own instruments, noise removal, the practice monitor, raga practice, instrument care and the check-up. There is no higher tier and no feature sold separately.
- No advertising, of any kind, ever
- No account to create and no email needed to use the app
- Your playing and your data are never sold or shared — subscription or not
Straight answers
- Who takes the paymentGoogle Play / Apple
- Do we see your cardNo, never
- Renews automaticallyYes, until cancelled
- Cancel whereYour store account
- RefundsBy the store, under its policy
- If you don't subscribeThe app says so plainly and stops
The exact trial length, price and billing period are set out by the store at the point of purchase, and in section 6 of the terms.
Rabab Tuner 1.0
Bring your Rabab into tune tonight.
Two months of everything free, then keep it with one subscription — billed by your app store, cancel any time. No ads, no tracking, nothing sold on. Coming to Google Play and the App Store; leave a message and you'll hear from us first.
Coming soon toGoogle Play
Coming soon to theApp Store