Your running plan, built on the runs you actually do.
Masir reads your runs in Apple Health, works out your paces from your current fitness and reorganises the plan when the week does not go as planned.
iPhone, iOS 17 or later. Free to start, no account.
Give it a race time, get your paces back.
- Easy run
- 6:25 – 7:12 /km
- Most of your running
- Threshold
- 5:37 – 5:47 /km
- An effort you could hold for an hour
- Intervals
- 5:06 – 5:14 /km
- Hard reps of 3 to 5 minutes
These are the paces Masir sets on each of your sessions. In the app you type nothing: it works them out from your runs, and works them out again when your fitness moves.
What you carry in your pocket.
Five screens of the app, as they are.
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A plan built on what you already run
Masir reads your history in Apple Health: Apple Watch, iPhone, or a Garmin, COROS or Polar watch as soon as it writes to it. Your starting volume comes from there, not from a questionnaire. From 5K to the marathon, with a target time if you have one.
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Every session, block by block
The structure, the target pace, the estimated duration, and the purpose of the session. Paces adjust to the day's heat and humidity.
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The week goes sideways, the plan follows
A missed session, tiredness, a holiday, an injury: you say so, the plan reorganises itself and tells you what changed. Load builds in steps, so you do not do too much, too soon.
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Live GPS, no watch needed
Start the session from your iPhone: distance, time and pace on the map, block after block. Your runs tick off the plan's sessions by themselves.
Free
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You see where you stand
Your predicted time for the goal, each week's volume, your personal records. Figures taken from your runs.
Chasing a time?
The pace to hold, your splits and the sessions to get there.
What is free, what is paid.
Free
No time limit, no account.
- The “Get into running” programme: eight weeks of walking and running, starting from zero
- GPS tracking of your runs
- History, statistics and run analysis
- Import of your runs from Apple Health
Masir Plus
The complete plan and the coaching that goes with it.
- Plans from 5K to the marathon, up to race day
- Guided fitness tests and pace calibration
- Adaptation to the unexpected
- Progression tracking
- Calendar export of the plan
Two-week free trial, then a monthly or yearly subscription. In the euro area:
€7.99 per month or €59.99 per year
Renews automatically; cancel at any time in your Apple account settings. The price shown in the app, in your currency, is the one that applies. Details are in the terms of use.
Your runs stay on your iPhone.
- No account to create.
- No server storing your training.
- No ads, no trackers.
- Nothing is sold on.
One piece of data leaves your device: a position rounded to about 11 km, sent to a weather service to adjust your paces to the heat.
This site does the same: no cookies, no third-party scripts. It is all written down in the privacy policy.
The pace calculator, without installing the app.
Your 5K, 10K, half or marathon time gives your six training paces and your estimated times over the other distances. Free, no sign-up, calculated in your browser.
Four questions, and you have your plan.
- Your goal: start running, 5K, 10K, half or marathon.
- How many times a week you run.
- Your longest run.
- The days that suit you.
A question, a problem
A request about your data, a bug, an idea: write to axel.kallgren@gmail.com.
The documents
Privacy policy: which data, where it lives, what your rights are. Terms of use: the contract, the Masir Plus subscription, responsibilities.
A tool, not a doctor
Masir is a training tool, not a medical device. The plans and paces it suggests are informational estimates and do not replace the advice of a health professional.