Chain any sequence of intervals — each its own length — and let it flow hands-free. Workouts, study sprints, drawing practice, meditation. Build it once, press play.
Free on iPhone · Pro unlock $4.99 · No account needed
The same simple idea — a chain of timed intervals — quietly powers dozens of routines. Here's where people love it most.
Push, rest, repeat. Build Tabata, EMOM, and circuit routines that auto-advance so you never break form to tap your phone.
Interval timer for workouts → ✏️30s, 1m, 2m, 5m poses in one sequence. It advances with an audio cue so your eyes stay on the model, not the clock.
Gesture drawing timer → 📚Chain 25/5 Pomodoro blocks — or your own rhythm — into a full study plan that runs itself from first sprint to last break.
Pomodoro & study timer →Sequence breathing rounds and silent sits with gentle chimes between phases — no jarring alarms.
Marinate, boil, rest, plate — one chain keeps a multi-step recipe perfectly on schedule.
Physical therapy, boxing rounds, language drills, screen-time limits. If it's a sequence of timed steps, it's a chain.
Unlike rigid work/rest timers, each link in the chain has its own setup, work and rest — build the exact routine you actually do.
Distinct sounds mark each transition, playing even when locked or backgrounded. Eyes off the screen, all the way through.
See the current interval right on your lock screen and Dynamic Island, without opening the app.
Keep a library of chains for every context and start any of them in one tap (Pro).
Sign in with Apple and your chains follow you to every device (Pro).
No clutter, no ads in your face, no account required to start. Just a timer that gets out of the way.
An interval timer for iPhone that chains together a sequence of intervals, each with its own duration. Use it for HIIT and circuit workouts, Pomodoro study sessions, gesture drawing practice, meditation, cooking — any routine made of timed steps.
Yes. Download and use it free. ChainFlow Pro is a one-time $4.99 upgrade for unlimited saved routines and cloud sync. No subscription, no account needed to start.
Absolutely — it's a favorite use. Build a sequence like 30s → 1m → 2m → 5m poses and it advances automatically with an audio cue, so your attention stays on the model instead of the clock. See the drawing guide →
Yes. Audio cues play in the background and a Live Activity shows the current interval on your lock screen.
Most timers only do a fixed work/rest cycle. ChainFlow lets every interval be a different length, so one app covers workouts, study, drawing, and more instead of forcing your routine into a rigid Tabata mold.
Free on the App Store. Works for whatever you're timing.
Download ChainFlow