Is There a Free Intermittent Fasting App? What Free Actually Means

Search the App Store for fasting and every result says free. Install five and you will find five different definitions of the word: a full tracker with an optional upgrade, a three-day trial that stops working, a timer that hides your own history behind a subscription, and a website quiz that wanted a card before you ever got to the app.

Fasting itself is free. The tracking should be close to it. Here is how to tell what you are actually getting, and to be transparent: we make FastBreak, one of the apps you might consider, so we say plainly what we charge for.

The line that matters

A fasting timer is not hard to build. That is not a slight on anyone -- it is a countdown, a progress ring and a list of past entries. Which means when an app puts the basic timer behind a paywall, that is a pricing decision, not a cost recovery.

The features that genuinely cost a developer money to run are the ones involving a server: an AI coach, photo food recognition, cross-device sync with accounts. Those are reasonable things to charge for, because every use costs the developer something.

So the test is simple: does the paywall sit where the server costs are, or does it sit in front of the countdown?

The checklist

Go through this in the app itself, not on the store page:

Should be free, and is in the better apps:

The fasting timer with fasting zones (fat burning, ketosis) -- not just a bare countdown
Your complete history. Charging you to look at data you generated is the clearest signal in the category
Streak tracking
A home-screen widget
A Lock Screen Live Activity
An Apple Watch app or complication
Editing a fast's start time after the fact, because everyone forgets to tap start
Export of your own data

Fair to charge for:

AI coaching, because a language model runs on someone's server per message
Photo food recognition, same reason
Cross-platform account sync
Deep analytics, meal plans, curated content

The widget, Live Activity and watch app deserve emphasis. They cost the developer nothing per user and they are what make a fasting tracker usable -- with them you almost never open the app. An app that paywalls them is telling you where its priorities are.

Three kinds of "free" that are not

The trial that ends. The app works fully for three or seven days and then the timer stops. This is a paid app with a sample, which is fine, but know that it is what you are installing.

The history wall. The timer stays free forever; looking at last month does not. You keep generating data you cannot read.

The web quiz. You never reached a free tier at all -- an ad sent you to a website that asked for a card before the download. If a checkout asks for a card number instead of showing Apple's payment sheet, that subscription will not appear in Settings → your name → Subscriptions and cannot be cancelled there.

This is the same funnel behind DoFasting and FastEasy. It is worth a rule: only subscribe to health apps through the App Store. Then cancelling is two taps and nobody can charge you afterwards.

What we charge for

Free in FastBreak, permanently and without an account: the full timer with fasting zones, complete history, stats, streaks, the home-screen widget, Lock Screen Live Activities, the Apple Watch app, Siri and Control Center actions, editing start times, water tracking, and CSV/JSON import and export of your own history.

Paid: photo food scanning with calories and macros, and the AI coach. Both run on a server, which is why they cost money. The fasting tracker is complete without either.

Billing is Apple only. There is no web checkout and no card on file with us. There is no registration, so no email and no password -- your history lives on the device, backs up through your own iCloud, and also to our server against an anonymous id so a new phone can restore it. Settings has a delete-everything button.

If you want the absolute minimum

Worth naming honestly: Intermittent Fasting Tracker by Kai Oelfke (about 50,000 ratings at 4.87) is an independent, deliberately tiny, account-free timer. If you want nothing except a timer and will never want a coach or food logging, it is a genuinely good answer and you should not pay anyone for more than you need.

The bottom line

Do not judge free from the store page. Install, then check three things: can you see your own full history without paying, do you get the widget and watch app, and does the checkout show Apple's payment sheet.

An app that gives you the timer, the history and the widget for nothing and charges only for the parts that run on a server is being straight with you. One that charges for the countdown is not.