With or without Apple Watch

Every rep, timed. Every set, logged.

RepSense counts your reps and the tempo of each one on Apple Watch — or logs every set in one tap on iPhone alone.

RepSense set summary on iPhone: a tempo bar for each rep, 92% consistent, measured by Apple Watch RepSense on Apple Watch mid-set: 6 reps, the current rep lowering for 1.6 seconds
Works with or without Apple Watch Plans built around you Made for iPhone Duo Automatic rep detection Real-time tempo feedback Recovery-informed training Private by default
Why RepSense

Stop logging. Start improving.

Most apps record what you did. RepSense measures how you did it — and shows you how to do it better. Track. Analyse. Recover. Improve.

Setup

Pocket to first set. Seconds.

Pick your workout. Start instantly. Everything’s already set.

Smart weight memory One-tap start
RepSense workouts screen with the next workout and a Start button RepSense on Apple Watch: next workout, Pull, with a Start button
Train

Feedback during the set. Not after.

Your watch measures every rep and tracks tempo as you lift.

Automatic rep detection Haptic tempo cues
RepSense set card with weight and rep steppers on iPhone RepSense on Apple Watch mid-set: live rep count and the current rep's tempo
Review

Spot the rep where performance shifted.

Every set gets a rep-by-rep breakdown: tempo balance, consistency, control.

Set-level insights Fatigue detection
RepSense set summary on iPhone: a bar per rep showing tempo, 92% consistent, fatiguing, measured by Apple Watch RepSense on Apple Watch resting after the set: 8 reps, 92% consistent
Improve

Progress isn't a feeling. It's a pattern.

Consistency you can see. Momentum you can build. Each week, a review shows what moved, what stalled and what to change.

Progression signals Weekly review
RepSense history: this week's workouts, volume and records, and a training calendar
Recover

Train what's ready. Rest what's not.

Smarter recovery means stronger sessions, faster.

Muscle fatigue map Training readiness
RepSense recovery screen showing muscle fatigue and training readiness on iPhone
Build a plan for me

Your week, planned.

Answer a few questions and RepSense builds your workouts: the right split for your days, exercises for your equipment, and sets, reps and rest for your goal. At the gym or at home.

1

Tell it about you

Goal, experience, days a week, session length, equipment, and anything to skip or go easy on. Skip any question you like.

2

Make it yours

Swap any exercise for one that fits, change days or session length, or build it again. Every workout stays fully editable.

3

It moves with you

Targets follow each exercise's rep range, and a weekly review suggests changes. Nothing changes until you say so.

iPhone only

No Watch? No problem.

Everything works on iPhone alone. Log a set in one tap, rest on a timer that starts itself, and see the same progress, records and recovery as everyone else.

One tap per set

Weight and reps carry over from last time. Adjust with a thumb, then Log Set.

Rest that runs itself

The timer starts when you log. Logged by mistake? Undo stays there for the whole rest.

A target for next time

Hit your reps on every set and RepSense suggests the next step: "Try 100 kg × 8".

Add a Watch whenever

Pair one later and reps are counted on your wrist automatically. Nothing to set up.

RepSense rest timer on iPhone, with Undo and the next exercise
New · iPhone Duo

Made for iPhone Duo.

Unfold it and your set sits beside the whole session: every exercise with its progress, and exactly what you lifted last time.

RepSense on iPhone Duo in landscape: the set card beside every exercise and last time's sets
Landscape: log your set with every exercise in view.
RepSense on iPhone Duo held open in portrait
Open: your set, and the session beside it.
Two columns when there's room History and summaries at a readable width Your workout keeps going as you fold, unfold or rotate
Apple Watch

Your wrist runs the session.

Concentric, eccentric, and isometric phases — measured as they happen. Haptic feedback holds your tempo steady when the set gets hard.

Tempo you can feel

Haptic cues during the rep — not a summary after the workout. Maintain control when it counts.

Hands-free rep counting

No tapping. No logging. Every rep detected automatically. You stay in the set.

Designed to disappear

Essential data mid-set. Nothing else. No menus, no distractions, no decisions to make.

RepSense on Apple Watch between sets: set 2 of 4 at 97.5 kg, target 10 reps
How it works

Three steps. Zero guesswork.

1

Load your session

Pick a workout, build one, or let RepSense build a plan for you. Last session's weights are already set. Lifting in seconds.

2

Lift with real-time feedback

Reps counted. Tempo measured. Haptics keep you on pace. You stay focused.

3

Know what's next

Performance data, recovery status, progression signals. Every session builds toward a better one.

Train with clarity

Every rep measured. Every session stronger.

Track every rep. Understand every set. Train better tomorrow.

Download on the App Store
RepSense logging a set on iPhone RepSense on Apple Watch: rest timer with the last set's reps
FAQ

Quick answers.

What does RepSense actually measure?
Every rep's concentric (lifting) and eccentric (lowering) tempo, plus optional isometric holds. You get live pacing on the watch and a full rep-by-rep breakdown on iPhone showing consistency, control, and where fatigue changed the movement.
Do I need an Apple Watch?
No. RepSense works fully on iPhone: log each set in one tap, with rest timers, records, progress and recovery. With an Apple Watch, reps and tempo are counted on your wrist automatically, and you can switch to iPhone for any workout.
Does it tell me when to increase weight?
Yes. When you hit your reps on every set, RepSense suggests the next step on the set card ("Try 100 kg × 8") and you can apply it with one tap. With a plan, it follows each exercise's rep range and uses smaller jumps for isolation lifts. It's based on your logged sets, so it works with or without a Watch.
Can RepSense build a plan for me?
Yes. Tell it your goal, experience, how many days you can train, how long you have, and what equipment you've got, at a gym or at home. It builds workouts with sets, reps and rest, and never guesses a starting weight: that comes from what you log. You can swap any exercise, and a weekly review suggests changes you can apply or ignore.
Does it work on iPhone Duo?
Yes. Unfolded, the workout shows your set beside every exercise and last time's sets; History and summaries stay at a readable width. Your workout carries on as you fold, unfold or rotate.
Is my data private?
Yes. No accounts, no cloud sync, no social features, no ads. Your workouts and training profile stay on your devices. Usage statistics and crash reports are off unless you choose to share them, aren't linked to you, and never include your exercises, weights, reps or Health data.
What do I need to use it?
An iPhone. Add an Apple Watch if you want reps counted automatically. On iPhone Duo, RepSense uses the larger inner display for a two-column workout view.