iQuantize
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E-Drum Practice
A boringdata-driven app that makes you a better drummer.
iQuantize analyzes your playing during every take, gives teacher-style feedback, and suggests the next groove or exercise matched to your level.
Requires an electronic drum kit and some patience.
iQuantize makes practice visible.
Most practice happens alone, at home, between lessons, without feedback from a real teacher.
That is where the useful details are usually hard to see. What improved, what kept slipping, and where mistakes started to settle in.
iQuantize turns that practice into a clear record.
The student sees what is improving. The record keeps growing take by take.
The analysis gets deeper as exercises get harder.
iQuantize scores every take and keeps the numbers. Over time, those numbers build into a profile of you as a drummer.
The radar chart shows your strong and weak skills across up to seven dimensions.
Simple grooves measure three or four of them. Harder ones can cover all seven, so the picture sharpens the further you push.
The groove library is built like a real curriculum.
It is informed by drum method books, graded exam paths, and teaching sequences.
Inside, each groove focuses on one new thing: ghost notes, an open hi-hat, a syncopated kick, or a shuffle feel.
The next groove adds the next layer, so you always know what you are working on.
iQuantize reads the chart itself to know what a groove trains, so iQuantize only scores skills the music actually contains.
iQuantize plays sampled real drums, not a synth.
Each drum voice was chosen and balanced for practice.
Soft hits sound darker and rounder.
Hard hits open up and crack.
Dynamics are audible, not just measured.
Ghost notes, normal hits, and accents sound different.
Fast repeats do not machine-gun. Cymbals and toms ring and overlap naturally. Close the hi-hat, and it chokes like a real pedal.
Start where your problem is.
Every one of these pages ends with a drill and the measurement that proves it worked.
Will my kit work?
Roland, Yamaha, Alesis, EFNOTE, Simmons, 2box and any class-compliant MIDI kit.
Check compatibility → TimingAm I rushing or dragging?
See the direction and size of your timing error, bar by bar.
See what's measured → MethodPractising without a teacher
Structure a session, and get a feedback loop that isn't just your own ears.
Read the guide →Common questions.
Do I need an electronic drum kit?
For real practice, yes — iQuantize listens to your electronic drum kit over MIDI, so you'll need an e-drum kit or a MIDI-capable drum module connected to your iPhone, iPad, or Mac. But you can take the app for a test drive without one: it comes with a simple built-in virtual drum kit.
Which electronic drum kits are compatible?
Virtually any electronic drum kit or module that sends MIDI works. iQuantize ships with automatic pad mappings for Roland, Yamaha, Alesis, EFNOTE, Simmons, and 2box modules, and a learn mode maps other class-compliant kits pad by pad. The mapping is remembered per device and restored when that kit reconnects.
How do I connect my drum kit?
Connect your kit's drum module to your iPhone, iPad, or Mac over USB (USB-MIDI) or through a MIDI interface. Class-compliant modules are recognized automatically, and the in-app MIDI setup lets you confirm or remap each pad. An iPad with a Lightning port additionally needs a powered Apple Lightning to USB 3 Camera Adapter.
Which platforms does it run on?
iQuantize is a native app for iPhone and iPad running iOS or iPadOS 17 and later, and for Mac running macOS 14 Sonoma and later.
How does the scoring work?
Every take is analyzed against the chart you are playing. iQuantize scores only the skills the music actually contains — simple grooves measure three or four dimensions, harder ones can cover all seven — and keeps the numbers so your skill profile sharpens over time. When a skill cannot be measured cleanly, no number is shown for it.
What drumming skills does it track?
Up to seven: note accuracy, timing with the click, internal pulse (keeping time after the click stops), timing stability, dynamic control, dynamic range, and limb independence. Each take updates only the skills the chart actually demands, and the results build a radar chart of your strengths and weaknesses.
Does it work with acoustic drums?
Not directly — iQuantize analyzes MIDI, so a purely acoustic kit is not enough. An acoustic kit fitted with triggers and a drum module that outputs MIDI works the same way an electronic kit does.
Is it for beginners or advanced drummers?
Both. The groove library is built like a real curriculum, informed by drum method books and graded exam paths. It starts at an initial level, and each groove adds one new thing, so you always know what you are working on.
Something not working? See support & troubleshooting — kit connection, MIDI detection, sound, and latency fixes.
Practice with purpose.
Connect your kit. Play the chart. Understand your performance. Train the skill that will make the biggest difference.
Free for 14 days, then free to keep using. See what Pro costs