Frequently asked questions.

For practice worth measuring, yes. The app reads an electronic kit over USB-MIDI and grades every strike against the chart, and a strike only becomes data if a module reports it. Check which kits are supported.

Yes, properly. A simple virtual drum kit is built in, and it is not a preview mode: start a take with no kit connected and the pads open for the whole take, feeding the same MIDI path a real module would. You get a scored take — notation, dots, findings, a next action.

What you will not get is a reading on your playing: tapping glass has no rebound, no stick and no dynamics worth the name. The compatibility checker is the faster next step.

14 days free, with everything open — every groove, skill and finding, and no account or password to invent first. After that Pro is €14.99 a month or €120 a year, VAT included, saving 33% on the annual plan. A free tier keeps the Starter grooves, so nothing you have already practised disappears behind a paywall. Full pricing and what each tier includes.

Good for a beginner, with a condition that has nothing to do with skill. Charts run from single-limb basics upward, and a skill is only scored once a chart demands it, so a hands-only groove never scores limb independence.

The condition is that you have to want to be told. It will say a groove you enjoyed playing was scattered, and keep saying so until it is not.

Nothing about grip or posture; you beat it on those forever. It beats you on what nobody can hold in their head: which voice is running late against the rest of the kit, flagged once the separation reaches 8 ms, and whether last week’s fix survived the week. What that looks like in a lesson.

No, but it stops being optional once charts get detailed, because reading is how you see a phrase before it arrives. This guide is a reasonable place to start.

There is a day streak for turning up, and a moment when you clear a groove. What there is not is a high score table, a rank to climb, or points that pay out for playing rather than for playing well. Clearing a groove means every skill that groove was written to test met its own pass mark, not an average a strong backbeat dragged over the line. Which means most sessions are not wins: a take that tells you the hi-hat is the problem is worth more than one that tells you well done.

Automatic pad mapping ships for Roland, Yamaha, Alesis, EFNOTE, Simmons and 2box kits, recognised by brand. Any other class-compliant MIDI kit can be mapped pad by pad with a learn mode, remembered per device. See the full list.

Both connect over USB-MIDI, though the cable differs by device. USB-C setup and Lightning setup each have a step-by-step page.

On a Lightning iPad, yes — you need the powered Apple Lightning to USB 3 Camera Adapter. An unpowered adapter or a generic cable is the most common reason a kit is not detected at all. Full connection steps.

No. Scoring needs a MIDI strike report — which pad, how hard, and when — and an acoustic kit produces air rather than messages. Triggers plus a module that outputs MIDI make it work like an electronic kit.

Not for scored practice. Bluetooth headphones and speakers add 100 ms or more of delay, and the amount drifts, so you end up correcting for a moving target even though the score itself is unaffected. Headphones that work instead.

That is monitoring latency, and it is separate from the score. Scoring uses the hardware timestamp each MIDI message arrives with, stamped as it reaches your device rather than when the app reads it, so a slow monitor path cannot make you look late. It still needs fixing, because you play to what you hear. How to reduce it.

Almost always a mapping problem rather than a hardware fault: the right strike is arriving under the wrong name. Fixing pad mapping walks through remapping it.

Every hit is matched to the nearest expected note on the chart and judged on timing and dynamics against windows and zones that lock in when the take starts. Each voice — kick, snare, hi-hat and so on — is averaged separately and then combined evenly, so a busy hi-hat part cannot drown out a sparser kick part. The full breakdown.

Because no number means “not measured”, and it is never a zero. Internal pulse needs a valid count-in and at least two complete bars without the click before it can report anything; dynamic range and limb independence are only scored on charts that call for them. What each skill needs to be measured.

Timing to the click measures how close your hits sit to the grid. Timing stability measures how tightly they cluster around your own average. Sit consistently 15 ms behind the beat and the click number barely moves, because anything inside the accurate band counts as on. Scatter is what moves both, and it moves stability about three times faster.

You are still told about the 15 ms: a finding fires once your average offset passes 8 ms and names the figure. Sitting behind the beat should be a decision, not a habit nobody mentioned. More on how this is measured.

Yes. Rushing and dragging are opposite directions of the same error, and the app reports which one is happening and by how much rather than blending them into a single figure. Rushing vs dragging explained.

Not on its own. An extra hit costs about half of a missed note, so a few stray hits nudge a score rather than collapse it. A pattern of them matters more, because it usually means something specific went wrong: a limb entering early, or a pad double-firing.

The dot on each note shows the worse of timing and dynamics, so a note dead on time but in the wrong velocity zone — too soft for an accent, too loud for a ghost note — is marked wrong with the timing perfectly fine. Two strikes can also compete for one expected note; the closer one wins and the other is scored as an extra.

It names the thing, in the words a teacher would use. A result ends with at most three findings and one action: The groove is landing late — the notes are mostly right, but bars 5–6 are averaging 22 ms behind the click. The button underneath says Practice bars 5–6.

A skill it could not judge steers you too: internal pulse was not tested — this groove needs a click-off section before iQuantize can judge how steady your time feels without the click.

Yes, but as something you read together on the student’s device. There is no dashboard, no login, no export.

What you read is the week itself. Open the bar map before the radar chart, then the finding — Fix the hi-hat part: most missed hits came from the hi-hat: 7 missed, concentrated around bars 5–6. Ten seconds to decide whether that is coordination or reading, instead of ten minutes reconstructing the week from what the student remembers. Using it in lessons.

Yes. It cannot see your posture or your grip and will never tell you those are the reason — but it hears every hit, which is more than anyone gets on the six days a week nobody is listening. Practising without a teacher.

Only the built-in charts. There is no song import and no music catalogue: iQuantize plays its own graded library and scores you against the written part. Play records however you already do; use the app for the half a mix hides — a kick sitting 20 ms late disappears under a bass guitar. Playing along with songs.

Yes. Nothing forces a pass through a chart to be a graded take, and playing through material to loosen up is a normal part of practice.

The fix is rarely trying harder at the same speed. A plateau usually means the working tempo is the only tempo being practised: drop to a speed where the take is clean and earn the rest back. Getting past a plateau and practising slow to earn speed cover the two most useful angles.

There is a suggested structure rather than one fixed routine, because a beginner and an advancing player need a different balance of rudiments, charts and free playing. Building a practice routine.

No. Core practice works offline — connect your kit and play.

No. There is no account, email address or password required for core practice.

On your device, saved as you play, with no account and no connection required. For the specifics of what is kept, see where practice data is stored.

It goes with the phone, unless the phone was backed up. The history sits in the app’s own storage on that device, and with no account to sign into there is nothing to sign back into on a new one — the direct cost of never asking for your email address. The database lives in the standard app-data location, so an ordinary device backup carries it across; a device that was never backed up cannot be recovered from our side. Accounts, and a restore that does not depend on your backup habits, are planned.

No. What reaches the app is MIDI data from your kit — which pad, how hard, and when — not audio or video of you playing.

No. There is no sharing, export or remote dashboard, so the only way anyone else sees a result is by looking at your device with you. That is deliberate — see how it fits into a lesson if a teacher is involved.