An Exercise Snack Timer for People Who Keep Forgetting

That is the real failure mode. Not laziness. Not scepticism about the science. You forget, because nothing in a normal working day is shaped to remind you. And the one week you did set an hourly alarm, it went off mid-thought, you killed it, and by Thursday it was off for good.

PomoFit is an exercise snack timer built around that specific problem. It is a Pomodoro timer where every break already has a short bodyweight move attached. You do not have to decide, and you do not have to remember. You start the timer and the schedule does the deciding for you.

What actually counts as an exercise snack

The cleanest definition comes from a 2025 meta-analysis in the British Journal of Sports Medicine (Ahmed et al., 11 trials, 414 inactive adults). To count, the movement had to be:

• five minutes or less per session

• done at least twice a day

• on 3 to 7 days a week

• sustained over 4 to 12 weeks

That is the whole specification. No gym, no kit, no minimum session length beyond “do something”.

Now the part most pages skip. Here is what that meta-analysis found: exercise snacks significantly improved cardiorespiratory fitness, at moderate certainty. Adherence was 91% and retention 83%, which is remarkable for any exercise intervention.

And here is what it did not find: no significant effect on body composition, no significant effect on blood pressure, no significant effect on blood lipids. If you want a movement break timer because you want to lose weight or fix your cholesterol, that evidence does not exist yet. What the evidence supports is fitness, and the fact that people keep doing it.

The short-session part is not a loophole either. The US Physical Activity Guidelines for Americans, 2nd edition (HHS, 2018) removed the old rule that activity had to come in bouts of at least ten minutes to count. Sixty seconds counts now. That is not a marketing position, it is the guideline.

Adherence in a trial is not adherence in your Tuesday

Sit with that 91% for a second. It is a real number produced inside a study. Trials come with a researcher, a calendar, and someone who checks in on you. Your Tuesday comes with a standup, four Slack threads, and a deploy.

The gap is not knowledge and it is not willingness. Globally, 31% of adults do not meet activity guidelines and 1.8 billion adults are physically inactive (WHO, 2024). Very few of them are unaware that exercise is good. The gap between “this works” and “I did this today” is a scheduling gap, and a scheduling gap is a software problem.

Why pairing it to a focus timer beats an hourly reminder

An hourly reminder has one job and does it badly. It fires on a schedule set by a clock that knows nothing about what you are doing. Half the time it lands mid-thought. So you dismiss it. Dismiss it four times and you have trained yourself to dismiss it, and the notification is dead within a week.

A focus timer fires at a boundary you agreed to in advance. You chose 25 minutes of work. The break was always coming. Nothing gets interrupted, because the interruption was the plan.

Three concrete differences:

1. The interruption is pre-negotiated. You are not being nagged. You are being told the thing you already scheduled has arrived.

2. The decision is already made. An empty five-minute break becomes your phone. A break with “10 air squats” on the screen becomes ten air squats.

3. It survives a bad week. A reminder you ignore is gone. A timer you already use for work keeps offering the break whether or not you took the last one.

One honest caveat, since this audience checks: the 25/5 split is not a research finding. Francesco Cirillo picked it in the late 1980s with a tomato-shaped kitchen timer, and the handful of trials that exist find no productivity difference between Pomodoro and other break patterns. We are not claiming the interval is magic. We are claiming that a boundary you already keep is the cheapest place in your day to put a squat. If you want the longer version of that argument, we wrote it up in why the Pomodoro technique stops working.

Pick a move by the time you actually have

Every break is different. Sometimes you have five minutes, sometimes you have the thirty seconds before a call. Both count.

• 30 seconds. 15 air squats, or 10 desk push-ups, or 20 calf raises. Large muscle groups, zero setup, no floor contact. Survives a shared office.

• 60 seconds. 20 air squats plus 10 incline push-ups, or one flight of stairs at pace, or 60 seconds of jumping jacks. Three vigorous 60-step stair climbs a day, three days a week for six weeks, improved fitness and peak power in sedentary young adults (Jenkins et al., 2019).

• 3 minutes. Circuit, twice through: 10 air squats, 8 push-ups, 10 reverse lunges per leg, 20-second plank. Enough volume to feel like training. Short enough to skip a shirt change.

• 5 minutes. Full round, three times: 12 air squats, 10 push-ups, 12 glute bridges, 8 walking lunges per leg, 30-second wall sit. The upper bound of the meta-analysis definition. A real strength session, in pieces.

Note what is not on that list: neck rolls and desk stretches. In a review of 27 randomised trials on desk-worker neck and shoulder pain (Chen et al., 2018), strengthening exercise worked, at moderate-quality evidence, and stretching was no better than not stretching. Ergonomic changes alone and education alone did not work either. So PomoFit gives you squats and push-ups. The stretching video can stay where it is.

If picking is itself the friction, do not pick. Use one of the ready-made PomoFit plans and let it run the week. Back pain desk relief leans on posterior-chain strength work. Energy boost cardio is for the 3pm slump. Full body strength is the closest thing here to an actual programme.

Free, and 4.99 if you want more

Free gets you the whole idea: the timer, an exercise in every break, the ready-made plans, and no account. Nothing to sign up for, nothing to install, works in the browser. One number on screen and nothing to click.

PomoFit Pro is 4.99 a month and adds personalised schedules, custom exercises so you can swap anything you cannot do, YouTube ambient audio, detailed stats, and leaderboards if that motivates you. Ignore the leaderboards if it does not.

That is the entire pricing page. There is no annual trap and no free trial that quietly bills you.

What this will not do

It will not make you sharper. Three separate studies of movement breaks found no cognitive benefit, and we are not going to pretend otherwise. What movement reliably does is lift energy and mood, and the meta-analytic evidence on micro-breaks says they restore vigour and reduce fatigue without costing you output.

It also will not work if you never open it. That is the one failure mode we cannot engineer around. Everything else, including remembering, is handled. For the evidence on how often to actually stand up, see how often should you get up from your desk, and for break ideas beyond this page, what to do during a Pomodoro break.