Fastum: Fasting Tracker

Fastum: Fasting Tracker

Intermittent Timer & Stages

14 ratings
12 reviews
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • August 5, 2026
  • August 20, 2026
Fastum: Fasting Tracker screenshot #1 for iPhone
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About

This app helps users track their intermittent fasting journey with a simple, intuitive interface. It monitors your fast, logs meals and water intake, and provides insights into your body's metabolic stages. Integrates with health platforms for a comprehensive overview.

One-tap fasting start
Timed and open fast modes
Metabolic stage notifications
Water and weight tracking
Meal and macro logging
Apple Health integration
Home screen widget
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What's New in Fastum

1.3.0

August 20, 2026

Signing out no longer costs you anything. Your fasts stay readable on this phone, the app keeps working, and everything comes back the moment you sign in again. It used to drop you into the setup questions as though you were a stranger. Also in this update: • Restore purchases moved somewhere you can find it. It sits in the Me tab now, so getting a subscription back after a reinstall doesn't mean hunting through a sales screen first. • Deleting your account now disconnects Sign in with Apple too. Before, the app stayed listed on your Apple Account long after your data was gone. • Clearer prices. The annual plan shows what you'll actually be charged, with the per-month equivalent underneath, and what a free account is for is stated before you buy rather than after. • We ask about an account less. Twice per feature, then we stop — and asking never leaves a button that quietly does nothing. • Light and Dark work properly again. If your appearance is set to System, the app now follows your phone instead of quietly staying dark every time you opened it. • Editing when a fast started is smooth. The picker no longer jumps over the timer as it opens, and scrolling it doesn't fight you.

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Subscription plans

Fastum Pro Annual

Custom Fast, Pro Fast, food log & macros

$49.991 Year
7 Days trial
How to cancel Fastum subscription ⁉️

User reviews

Simple and motivating fasting app

I’ve really enjoyed using Fastum! The app is clean, easy to navigate, and makes tracking my fasting window really simple. I especially like being able to see my progress throughout the fast and learn more about the different stages my body is going through. It’s motivating without feeling overwhelming, and the overall design is really nice. Definitely recommend it if you’re trying to stay consistent with intermittent fasting!
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Quick and easy

Efficient and simple way to track your fasting schedule. Timer is easy to start, the history makes it obvious when I’m slipping. No account required to start, which I appreciate. Worth it.

Timely and useful

Been needing this app for a while and it’s exactly what i needed for myself and partner.

User-friendly Data!

This app is great, I haven’t seen any other like it for consolidating data related to fasting. The interface is really intuitive, and I love that it couples to Apple health data so I don’t have to configure a new device, it just applies the data I already have to this specific application!

Fastinating App!

Turns out fasting is way more interesting when you know the science behind it!! Love that Fastum goes beyond just a timer and actually breaks down what’s happening metabolically in your body. Go cells!

FAQ

Does Fastum have ads?

Yes, Fastum contains advertisements. These ads are present in the free version of the app.

How much does Fastum Pro cost?

Fastum Pro is available via subscription, costing $7.99 per month or $49.99 per year. The annual plan includes a 7-day free trial.

Can I cancel my Fastum Pro subscription?

Yes, you can cancel your Fastum Pro subscription at any time through your App Store account settings. Cancellation typically takes a couple of taps.

What devices does Fastum support?

Currently, Fastum is supported on iPhone devices. Future platform expansions may be available.

How often is Fastum updated?

The latest version of Fastum is 1.2.0, and it was last updated on August 12, 2026. Updates are released to improve functionality and add new features.

What age rating does Fastum have?

Fastum is rated for users aged 12 and older. This rating indicates the app is generally suitable for pre-teens and above.

Can Fastum track my meals and water intake?

Yes, Fastum allows you to track water intake for free with an account. Meal logging, including barcode scanning and macro tracking, is available with the Pro subscription.

How does Fastum integrate with Apple Health?

Fastum integrates with Apple Health by reading your weight, sleep, heart rate, and activity data. It also writes back the weight and water you log within the app.