Hour 11 · Fat burning
Fasting tracker. Just the clock.
Start a fast, watch the timer, see which phase you’re in. Then the app gets out of your way.
- Recipes
- Calorie counting
- Social feed
- Ads
Free for Android. Plus from $59.99 a year, with a 14-day free trial.
What hour 16 actually means
The same phases the app shows, with their hour marks and their limits. Every phase is named on the free plan, and every one is explained here. Read them hour by hour.
- 0hBlood sugar settlesDigestion finishes; most notice nothing
- 4hStored glucose declinesHunger comes in waves
- 8hFat burningMore fuel drawn from stored fat
- 14hKetosisKetone use increases; onset varies widely
- 18h+Autophagy signallingStudied mostly outside everyday conditions
Hour marks are what studies commonly report, not a schedule your body follows.
The whole app, in eight screens
Fasting timer that respects you
Hours, phase, time left. No feed, no ads.
Know the phase you’re in
Named, timed, sourced. Not a promise.
16:8, OMAD, 72 h, yours
Routines that fit real weeks, with a reminder before each.
Does this break my fast?
Three honest tiers, including the grey one.
Private journal, never shared
Notes and mood, kept with each fast.
Fastrackie Plus
See your pattern
Trends across every fast, not only the last 30 days.
Ending early isn’t failure
A short fast is recorded as it happened.
The timer is always free
Plus adds long fasts, the full guide and trends.
It tracks the clock and stops there
Every fasting app adds things. This one keeps them out, so the screen you open mid-fast shows the fast and nothing else.
- Recipes
- Meal plans
- Calorie or macro counting
- Workouts
- BMI or body-fat estimates
- Before-and-after photos
- A social feed
- Ads
- A supplement shop
The timer is always free
Free
$0, with no time limit
- The timer, and fasts up to 24 hours
- Every phase by name
- Journal, mood, weight and drink logging
- Your last 30 days of history
- Stop-fast guidance, always one tap away
- Data export and account deletion
Plus
- $9.99a month
- $59.99a year14-day free trial if you have never bought Plus
- $99once, for life
- Analytics, trends & insights
- History beyond 30 days
- Custom themes
- Fasts past 24 h and open fasts
- The full phase guide and its sources
- Home-screen widgets and the Quick Settings tile
- Body measurements
- Why each drink lands where it does
Fasts up to 24 hours, every phase, stop-fast guidance, logging, export and account deletion never need a plan, and a running fast is never cut short. US prices: Google Play shows the price in your currency before you confirm. Cancel a subscription any time in the Play Store.
Before you install
Is Fastrackie on iPhone?
Not yet — it is coming to the App Store. Today Fastrackie is Android-only, on Google Play.
Do I need an account?
Yes: an email address or Google sign-in. Your fasts are saved to your account so they survive a new phone, and you can export or delete everything from inside the app at any time, on the free plan.
What happens at 24 hours on the free plan?
Free fasts can be set up to 24 hours, and every phase begins by hour 18. Longer and open fasts are part of Plus. A fast that is already running is never cut short: it keeps going and is recorded in full.
Why are there no recipes or calorie counting?
Because you are fasting. Fastrackie tracks the clock and stops there: no meal plans, no macros, no workouts, no feed and no ads.
Is this medical advice?
No. Fastrackie is not a medical device and does not give medical advice. Fasting is not suitable for everyone — including during pregnancy, with a history of eating disorders, or alongside some medication. Talk to a clinician first.
How do I reach a person?
Email joenyambura@gmail.com. The developer reads it.
Your next fast starts when you say
Free for Android. The timer, every phase by name and your last 30 days never need a plan.