Frequently asked questions

DrumPulse (sometimes written Drum Pulse) is an Apple Watch and iPhone app for drummers. It detects your drum hits from wrist motion, measures your tempo, grades your timing against a metronome or your own groove, and saves each session to Apple Health as a workout with heart rate and calories. It needs no microphone, drum triggers, or extra hardware.

DrumPulse is $3.99 on the App Store for iPhone and Apple Watch, with no subscription, no ads, and no account.

DrumPulse is on the App Store at apps.apple.com/app/id6782245341. It installs on your iPhone and runs on your paired Apple Watch.

Yes. DrumPulse reads your wrist motion through the Apple Watch's built-in motion sensors, detects each drum hit, measures your tempo, grades your timing, and saves the session to Apple Health as a workout. No microphone, drum triggers, or extra hardware are needed — just the watch on your playing hand.

No. The watch app runs on its own — you can play, grade, and save sessions with just the Apple Watch. The optional iPhone companion gives you a bigger screen to review sessions, trends, and per-song breakdowns, syncing over Apple's encrypted device-to-device connection.

Yes. It senses your wrist motion, not sound, so it works on acoustic drums, electronic kits, and practice pads alike — anywhere your hand makes a striking motion. You can even practice on a pillow or your knee.

DrumPulse runs on Apple Watch models on a recent watchOS version. Hands-free start by double-tapping your fingers requires Apple Watch Series 9, Series 10, or Ultra 2. It was developed and validated on Apple Watch Ultra 2.

For detecting hits, no — detection is hand-agnostic. DrumPulse measures the magnitude of your wrist's acceleration (√(x²+y²+z²)), which is the same on either wrist and at any orientation, so accuracy doesn't depend on the hand and there's nothing to configure. What the hand does decide is which voice you measure: the watch only sees the hand it's on. Wear it on your snare/backbeat hand to grade backbeats (best for most timing practice); wear it on your lead/hi-hat hand to track the faster ostinato stream. It's a coaching choice, not a setting. More in How it works →

It samples the watch's accelerometer and computes the magnitude of acceleration on each sample. A drum strike produces a sharp spike; DrumPulse peak-picks those spikes above an adjustable sensitivity threshold, with a short refractory window so a single hit isn't double-counted. Each detected hit gets a precise timestamp used for tempo and timing grading.

No. The watch only senses the motion of the wrist it's worn on, so DrumPulse measures one hand — the hand wearing the watch. It does not track your other hand or your kick and hi-hat feet. This is why the watch hand determines which voice you're grading.

Because it sees one hand, a short refractory window between hits caps how fast consecutive same-hand strikes can be told apart — about 125 BPM for continuous one-handed sixteenth notes. Alternating sticking is unaffected, since the watch hand plays every other note. If you pick a tempo and subdivision beyond what one wrist can resolve, the app warns you.

For the hand it's on, yes — it timestamps hits to sub-sample precision and grades them against a sample-accurate metronome grid or your own groove. Accuracy depends on a good sensitivity setting, which the built-in calibration sets from your real strikes. Remember it measures one hand, so it reflects that hand's timing, not the whole kit.

Yes. Free Play mode grades you against your own established groove with no click, so it tells you when you drift faster or slower relative to yourself. Metronome mode also offers click dropout, which mutes the click for some bars so you practice holding time through silence and then checks how you re-enter.

In Metronome mode you set a tempo and every hit is graded against a steady click, like a timing trainer. In Free Play mode there is no click — DrumPulse learns your own recent groove and flags when you speed up or slow down relative to yourself, which is ideal for open playing and gigs.

Rushing means you played ahead of the beat (early); dragging means you played behind it (late). DrumPulse shows early as negative and late as positive, splits every graded hit into rushing, on-time, and dragging, and rolls it into a groove score from 0 to 100. How each hit is timed →

Each graded hit gets a timing error in milliseconds: its distance from the nearest beat or subdivision in Metronome mode, or how far its beat length differs from your own settled groove in Free Play. DrumPulse takes the RMS (root mean square) of those errors: square each one, average them, then take the square root. An RMS of 15 ms or less scores 100, and the score falls in a straight line to 0 at 90 ms, so 30 ms scores 80 and 52.5 ms scores 50. See the math, with worked examples →

Accent lag measures whether your loud hits land at a different time than your soft ones, by comparing the average timing of your accents versus your ghost notes across the session. Positive means accents drag behind the beat, negative means they push ahead, and near zero means an even touch. It's a subtle habit the overall groove score can hide.

DrumPulse sorts every hit by strength into ghost (soft), body (medium), and accent (loud) — measured relative to your own playing strength, not a fixed volume. So a hard-hitting player isn't graded as all accents and a light player's taps aren't all ghosts. It shows the dynamic range in your playing.

In Free Play, DrumPulse splits a long set at the silences between songs, then re-merges adjacent parts that stayed at the same tempo so a mid-song pause isn't counted as a new song. It's a best-guess estimate from wrist motion alone — a long mid-song pause or two songs at the same tempo can fool it — so treat the song count as approximate.

Most drummers can't hear it reliably while playing, which is why it helps to measure it. DrumPulse timestamps every hit from your wrist motion and compares it with the metronome grid (or your own groove in Free Play), then shows how many hits were early (rushing), on time, or late (dragging) and your average lean in milliseconds. A steady lean in one direction across a session is the habit to work on.

Practice with a metronome at a tempo you can play cleanly, and measure instead of guessing. Check your rushing and dragging split after each session, slow the tempo down if your groove score drops, and move up only when you're consistent. Click dropout (muting the click for some bars) trains you to hold time on your own, and Free Play shows whether you stay steady without a click. Short, regular sessions beat one long one.

In DrumPulse, an RMS timing error of 15 ms or less scores 100, 30 ms scores 80, and the score falls to 0 at 90 ms. As a rule of thumb, the 80s and up mean tight, consistent time; 60s and 70s are normal when you're pushing a new tempo or a new pattern. Compare against your own last sessions rather than chasing a single number, because tempo and difficulty change the score. The formula is on the math page.

Consistency matters more than length. Many teachers suggest 20 to 30 focused minutes a day for beginners, and longer sessions for advanced players working on specific goals. Tracking each session with DrumPulse shows your duration, timing, and trends on one timeline, so you can see whether your practice is actually paying off.

Start slow enough to play every note evenly, often somewhere around 60 to 80 BPM for basic rudiments and grooves, then raise the tempo a few BPM at a time once your timing is steady. Speed is a result of control, not a starting point. DrumPulse's metronome mode grades each hit so you can see when a tempo is too fast to keep clean.

A metronome gives you an objective reference, so you build an internal sense of steady tempo instead of drifting without noticing. It exposes rushing in fills and dragging in slow passages. DrumPulse goes a step further by grading your hits against the click and showing the result, so the metronome becomes feedback and not just a sound.

Yes. Because DrumPulse reads wrist motion instead of listening for sound, you can practice on a practice pad, a pillow, or your knee with headphones on and still get tempo and timing feedback. That makes it useful for apartments, late nights, and travel.

It detects the striking motion of your wrist, so it can work for other hand-percussion styles where you make a sharp striking movement, such as a marching snare, djembe, or bongos. It was designed and tested for drum-kit and pad playing, so results on other instruments may vary, and you may need to adjust the sensitivity during calibration.

It can be. Playing drums is rhythmic, full-body activity, and energetic styles like rock, metal, and fast jazz can raise your heart rate into a moderate-to-vigorous range, especially in longer sets. Intensity varies a lot with style, tempo, and how hard you play, so a gentle practice session is lighter than a loud gig. DrumPulse shows your live heart rate while you play so you can see how hard you're actually working. More on drumming cardio →

It depends on your body weight, how hard you play, and for how long. Published activity tables rate drumming as roughly moderate exercise, and many estimates land in the range of a few hundred calories per hour for an average adult. DrumPulse estimates calories from a drumming activity value and your body weight (read from Apple Health when available) and records the result with your workout. Treat any figure as an estimate.

Drumming can contribute. It burns calories, it's easy to enjoy and stick with, and regular sessions add to your weekly activity. Like any exercise, weight loss depends on your overall energy balance, so think of drumming as a fun way to add movement, not a stand-alone solution. Tracking sessions in Apple Health makes it count alongside your other workouts.

Drumming works your forearms, shoulders, core, and legs, and it trains coordination, rhythm, reaction, and endurance. Higher-tempo and longer sessions add more cardiovascular demand. The limb coordination is also a mental workout, which is part of why many people find drumming engaging as a way to stay active.

DrumPulse saves each session to Apple Health as a workout with heart rate and active energy, and active energy counts toward your Move ring. Whether you earn Exercise minutes depends on the intensity Apple Watch detects during the session, so a hard, energetic session is more likely to count than a light practice. Stand hours are separate.

Apple's Workout app has no dedicated drumming type, so use an app built for it. Open DrumPulse on your watch, pick Metronome or Free Play, and start playing. It detects your hits, tracks tempo and timing, shows live heart rate, and saves the session to Apple Health as a workout when you finish.

Finished sessions show up in the Fitness app and in Apple Health's workout history, listed as Other (branded Drumming) with duration, heart rate, and active energy. Timing, dynamics, and per-song detail stay in DrumPulse, where you can review them on the watch or the optional iPhone companion.

For each session it keeps your tempo, hit timing and groove score, the rushing, on-time, and dragging split, dynamics (ghost, body, and accent hits), accent lag, estimated songs in Free Play, plus duration, heart rate, and calories. Everything is stored on your own devices.

Yes. The optional iPhone companion shows session history, trends, and per-song breakdowns, so you can see whether your groove score, tempo, and consistency are improving week to week. Your workouts also build up in Apple Health alongside your other activity.

No. DrumPulse uses the sensors already in your Apple Watch: the motion sensors detect your hits and the heart-rate sensor reads your pulse. For best heart-rate readings, wear the watch snug on your wrist, just above the wrist bone.

With DrumPulse, yes. Each session is saved to Apple Health as a workout with duration, heart rate, and active energy, so it contributes to your activity rings. Apple Health has no dedicated drumming type, so it appears as Other (branded Drumming) in the Fitness app.

Yes. It shows your live heart rate while you play and estimates calories burned from a drumming activity value and your body weight, reading your body-mass sample from Apple Health when available. All of this happens on the watch.

Yes. DrumPulse has no accounts, no tracking, no analytics, and no servers. Your motion and heart-rate data are used on-device only and never leave it. Sessions sync solely between your own watch and iPhone over Apple's encrypted connection, and you can delete sessions or revoke permissions at any time. See the privacy policy.