Today
16:8
2 /5 Difficulty · 81.4 kg Weight
⏳ Fasting
Fasting Tracker App
Start the timer at your last bite
Most fasting apps are a countdown with a paywall. This is a log. Start the timer when you finish eating, stop it when you break the fast, give the fast a difficulty score and note what you ate. Over a month you get your true average, your longest fast and how many you actually completed, which is the number that decides whether 16:8 is working for you.
One entry per fast: the timer, how hard it was, what you ate first.
Also called a intermittent fasting log, fasting journal or fast timer log.
9:41●●● ▲ ▮
‹ Fasting ⚙
3.3/5
Average Difficulty · 7 entries
5 / 5 this week
Yesterday
16:8
3 /5 Difficulty · 81.6 kg Weight
Sat 12 Sept
18:6
4 /5 Difficulty · 81.9 kg Weight
Fri 11 Sept
Broke early
5 /5 Difficulty · 82 kg Weight
+
What you’ll track
The Fasting log, out of the box
One entry per session, with the timer and location always available. Add or rename variables any time in log settings.
| Variable | Type | Stats shown |
|---|---|---|
| Difficulty · /5 | Number | Average |
| Weight · kg | Number | Min, Average |
| Timer | Built in | Total time, per entry duration |
| Location | Built in | Pin or place, shown on the log map |
| Notes, photos, sketches, voice memos | Built in | Attached to any entry |
3.3/5
Average Difficulty
81.4kg
Min Weight
82.0kg
Average Weight
How it works
From install to first entry in a minute
1
Pick “Fasting” during setup
The log is created with the variables above and a few example entries so you can see how it works. Clear them with one tap.
2
Log as you go
Tap plus, fill in what you have, save. Timer, location, notes and photos are there when you want them, hidden when you don’t.
3
Let the stats accumulate
Average difficulty sits on the log card, with the rest one tap away. Set a goal if you want a nudge.
Why this log
Built for the way you actually do it
A timer that is also the record
Start it at your last bite, stop it at the first. The fast's length is saved on the entry, total fasting hours add up, and the longest fast sits on the log card.
Difficulty next to duration
A hard 16 hours and an easy 16 hours are different fasts. Scoring difficulty shows which windows suit you and which days of the week always hurt.
Weight in the same entry
Add the morning weight to the fast entry and the minimum and average track alongside, without a second app.
Everything else in the app
Not just a form. A logbook that thinks with you.
The Fasting log is one log among many you can keep. Every one of them gets the same tools.
AI analysis
AI reads the pattern for you
Tap the bulb on Fasting and get a plain-language read of your trends, what changed recently, and a suggested next goal, built only from your own entries.
Goals
Goals, streaks and reminders
Set a target like three times a week, watch the rolling progress bar, keep a streak, and get a reminder at the time you actually log. The app learns that time from you.
Calendar
A calendar heatmap per log
Every log has its own month view showing which days you logged. Gaps are obvious, consistency is visible, and one tap opens that day's entries.
Rounds
Several rounds in one entry
Every exercise in a workout, every piece in a practice session: logged together in one entry, broken out automatically in the stats.
Attachments
Photos, sketches, voice memos
Attach a photo, draw a quick sketch, or record a voice note on any entry. They stay with that entry and come back on every device you sign in on.
Map
Every entry on a map
Drop a pin or search for the place. Each log has a map view of everywhere you logged, and saved places open directly in Google Maps.
Search
Search across everything
Find an entry by title, note or value across every log, filter by date or location, and jump straight to it.
Privacy
Yours, offline first
Entries save on your phone first and sync when you sign in. No account needed to start, no feed, no one else sees your data.
Who keeps a fasting log
People doing intermittent fasting who want to know their real average instead of the schedule they intend, anyone tired of a countdown app that charges monthly for a stopwatch, and those tracking weight alongside so both numbers sit in one place.
It also fits religious or occasional fasting, where the record matters more than a daily streak.
What a month of fasts tells you
Average length is the honest number; it is usually shorter than the plan. Fasts per week shows adherence. The difficulty score by weekday exposes the pattern behind the broken fasts, typically social eating on two specific days.
Weight minimum and average next to fasting hours per week is the pair that answers the only question that matters: is this doing anything.
Questions
Frequently asked
Does it have fasting schedules or a countdown?
No. It records what you did. Put the plan in the entry title, 16:8 or 20:4, and the stats tell you how often you hit it.
Can I log what I ate to break the fast?
Yes, in the notes or as a text variable called “First meal”. Marked as tracked individually, it shows which first meals go with the easy fasts.
Is it suitable for medical fasting?
It is a diary, not medical advice. If you fast for a condition or take medication, follow your doctor's guidance and use the log to keep the record they ask for.
Get the app
Free to start. Your logs stay on your phone until you sign in, then they back up and sync.