The app is built to make the boring work easier to do every day — tracking, logging, and reconciling, without turning it into a burden.
App Features

Intermittent Fasting Tracker
Free intermittent fasting tracker — pick a window, run it with a live timer, and keep a rolling record of what you actually did.

Extended Fasting Tracker
Run a deliberate long fast from 24 to 168 hours, with stage content through the first 72 hours and milestone callouts.

Weight Tracking
Free weight tracker — log daily, edit any entry inline, and watch the trend over time.

Walking Tracker
Free walking tracker — start a timer, pick your pace, and let pause/resume handle real-life interruptions.

Calorie Tracker
Free manual calorie tracker — log meals once, save them to My Foods, and watch your daily remaining calories update live.


90-Day Challenge
The sponsored structure layer — set a goal weight, pick 30 to 180 days, and the app aggregates every food, walking, and weight entry into one timeline.
Which devices does FastNow work on?
Does FastNow work on iPhone or iOS?
Yes. The web app works on every iOS device — iPhone and iPad included. Open it in Safari and add it to your home screen for an app-like experience. No App Store download required.
Is there a native iOS app?
Not yet. We built the Android app first. The web app is fully-featured on iOS and covers every part of the protocol — the fasting timer, food logging, walking tracker, and everything else.
Will I lose any features on the web version?
No. The web app is the same app. Fasting timer, food logging, walking tracker, weight tracking, motivators — all features work on every platform, including iOS.
Can I use FastNow on a desktop, tablet, or laptop?
Yes — any modern browser works. Your data syncs across all your devices through your account, so you can pick up where you left off no matter what you are on.
Are the web app and the Android app the same?
Yes — same features, same data, same account. The one difference is push notifications: only the Android app delivers native push right now. Pick whichever fits the device you're on.
What's Free
The base trackers — fasting, walking, food, weight — are free forever. Sponsorship adds the 90-Day Challenge structure and AI text, voice, and photo food input on top.
Become a Sponsor
- Sponsorship is CHF 7.10 per month.
- Unlocks the 90-Day Challenge structure — a 30–180 day timeline with daily targets and projections.
- Includes AI text, voice, and photo input for faster food logging.
- Supports independent development and gives you early access to new features.
The web app works on iPhone, Android, desktop, and tablet — same experience everywhere. Prefer a home-screen icon and native notifications on Android? Get the Android app instead.