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Pro opens up OMAD and the 24 to 96 hour fasts, adds thirteen more guided programs, and turns months of your own history into analysis you can actually act on.
Everything in the free app stays exactly where it is. Pro sits on top.
+11
plans, including OMAD and 24 to 96 hours
+13
guided programs, for 21 in total
+4
challenges, for six in total
2
streak freezes a month
Pro Analytics
A week of fasting tells you almost nothing. Fifty of them tell you which stages you actually reach, when you fast best, and how consistent you have really been. Pro Analytics is the part of Burn that only works once you have put the time in.
How often you reach each stage across every fast you have logged, as a count and a share. If you think you are reaching ketosis regularly, this is where you find out.
The hours your fasts usually begin, plus a consistency score out of 100, your deepest stage, and the start time your own record suggests works best for you.
Pro keeps looking for patterns without a cap, and adds the relationship between your fasting and your gut check-ins.
Longer fasts
Eleven additional plans, including OMAD and the extended fasts from 24 up to 96 hours, plus thirteen more guided programs to run them properly.
OMAD
Simple to run, easy to under-eat on, and worth doing with a program rather than by instinct.
24-96h
The range where Fat Burning gives way to Deep Ketosis and the later stages, tracked hour by hour.
+13
Thirteen additional programs on top of the eight in the free app, for twenty-one in total.
Everything else Pro adds
Your month written up and exportable, on top of the CSV export that is in the free app.
Every weekly summary you have ever had, with no window on how far back you can look.
Write your completed fasts out to Apple Health, so they sit alongside your sleep and activity.
Rate-limited and aware of your quiet hours, so they arrive when they are useful rather than constantly.
One missed day does not undo a long run. Freeze it and carry on.
Six in total, each with a plain rule and a fixed window to do it in.
Whichever tier you are on
Each one sets a target per day, eases off where it needs to, and gets harder only when you are ready for it. Miss a day and the week rolls on rather than collapsing.
Start with the free app and fast for a few weeks. Pro Analytics is worth far more once it has something to read.
Download free on the App StoreiPhone, iPad, and Apple Watch. Requires iOS 18 or watchOS 11.