iPhone · Apple Watch · on the App Store
We'll tell you when you've been sitting too long.
And only then.
Other break reminders are timers — they fire whether or not you got up. Office Shrimp reads the motion sensor in your iPhone and your Apple Watch, so walking to the kitchen actually counts, and sitting through the morning actually shows.
No account. Nothing leaves your phone.
How it works
It notices. That's the whole idea.
Every real walk resets the clock, so the app is nearly silent on a day you moved and persistent on a day you didn't. Nothing fires just because an hour went by.
You sit. The clock runs.
Every hour in the chair, the app asks you to get up. Every half hour, it asks how you're sitting.
You walk. It sees you.
A minute on your feet counts as a break. The clock resets to the moment you sat back down, not the moment you opened the app.
Keep moving. It keeps quiet.
No daily quota, no streak, nothing to keep up. The number of nudges is a consequence of what you did.
Two working days, same settings
- a walk
- a nudge
- A day with walks1 nudge
- A day in the chair8 nudges
Three nudges
Move. Posture. Standing desk.
One thing at a time, never more often than once every 25 minutes, and every one of them is a prompt, not a verdict.
Move
Every 60 minutes in the chair, by default. Reset the moment your phone or Watch sees you walk, so if you got up on your own you never hear it.
Posture
Every 30 minutes you sit still, a question about how you're sitting. Your phone can't see your spine, so it never claims to. Getting up resets this one too.
Standing desk · optional
Say you have one and it starts a timed stretch when you raise the desk, tells you when it's done, and pauses the move clock while you're on your feet.
Lock screen and wrist
One tap. The app never opens.
A card on your lock screen counts down to the next nudge and keeps today's tally. Tap the button and the break is credited without opening anything. On an Apple Watch it's the same card and the same button.
- Counts down on its own, then counts up, so it never says “soon” about something that already happened.
- Walks taken with the phone left on the desk still count, because the Watch’s steps reach the app through Apple Health.
- When the day is done, the card says so and stays until your working hours end.
Fits your day
Quiet outside your hours.
Tell it when you work and it stays silent the rest of the time. Lunch, days off and night shifts are all just settings. Left the phone on the desk? “I moved” is right there.
Honest about the sensor
What it can see, and what it can't.
Your iPhone's motion sensor is good at one thing: telling a walk from sitting still. The app counts a break when it sees you on your feet for a minute or more, and it's honest about the rest.
If the phone stays on the desk while you walk, it can't see you. That's what the "I moved" button is for, and what an Apple Watch fixes.
If a walk was seen but came up short, Today says so in plain words instead of quietly counting nothing.
And nothing here measures your posture. A phone cannot see your back, so the posture nudge is a reminder. Not a diagnosis, not a score.
Your data
It stays on your phone.
No account, no server
There is nothing to sign up for and nowhere for your data to go. Everything is a small file on your own phone.
Health is read-only
It reads your step count from Apple Health so Watch walks count. It never writes to Health, and never reads anything else.
Export and import
Your history is a plain file you can export, keep, and bring to a new phone. Erase it whenever you like.
Questions
The ones people ask first.
Will it nag me?
Only if you sit. Every walk resets the clock, so a day with breaks in it is nearly silent. It never asks more often than once every 25 minutes, and there is no quota to spend.
Does it work if my phone stays on the desk?
Not by itself. The phone has to move to see you move. An Apple Watch fills that gap through Apple Health, and the “I moved” button is there for everything else.
Do I need an Apple Watch?
No. The iPhone alone does the job if it goes with you. A Watch adds nudges on your wrist and counts walks taken without the phone.
Does it detect slouching?
No. A phone can’t see your spine, and any app that says it can is guessing. Office Shrimp asks how you’re sitting; it never claims to know.
Does it need an account?
No. Nothing is uploaded and nothing is stored anywhere but your phone.
What does it read from Apple Health?
Your step count and stand time. Steps are what count a walk; stand time only holds the next nudge back for the minutes before your steps sync. It has no write access and asks for nothing else.
What about evenings and weekends?
Silent. You set your working hours and days, and the app doesn’t exist outside them. Night shifts work too.
What does it cost?
It’s free to download, with a 7-day free trial on the yearly plan. After that it’s a monthly or yearly subscription, or a one-time purchase. The App Store shows the price in your currency.
