# Fast 2 Fit — Your Personal Fasting Guide

> Your Personal Fasting Guide (iPhone/iPad app by Bjoern Ruthberg.)

- Source: https://appshunter.io/ios/app/fast-2-fit/id6759174430 (this page in markdown: same URL + `.md`)
- Developer: [Bjoern Ruthberg](https://appshunter.io/developer/1062333907)
- Category: Health & Fitness, Lifestyle
- Price: $1.99
- Age rating: 12+
- Requires: iOS 26.2 · 17 MB
- Languages: American English, Norwegian Bokmål
- Released: 2026-09-22
- Data updated: 2026-10-10

## What is Fast 2 Fit?

Transform your fasting journey with personalized guidance tailored to YOU.

Fast 2 Fit is the intelligent intermittent fasting companion that adapts to your unique biology. Unlike generic fasting timers, Fast 2 Fit estimates personalized phase transitions based on your age, gender, activity level, and last meal type — so you get a timeline built around you, not a generic countdown.

PERSONALIZED FASTING PHASES
Your body is unique. Fast 2 Fit uses a personalized moderator system to estimate when you'll reach each biological phase:
Absorption → Post-absorption → Ketosis → Autophagy → Deep Autophagy → Peak Autophagy

A young, active person on a low-carb diet may reach estimated ketosis in as little as 5 hours, while others may take 22+ hours. Fast 2 Fit estimates YOUR timeline.

EXERCISE INTEGRATION
Log a workout during your fast? Fast 2 Fit reads your Apple Health workout data — no manual entry needed — and adjusts your phase timing, since exercise depletes glycogen faster and can speed up the shift into fat-burning mode.

FASTING PROGRAMS FOR EVERYONE
Choose from popular protocols:
• 16:8, 18:6, OMAD (One Meal A Day)
• Extended fasts: 24h, 36h, 48h, 72h
• Weekly Plans — pre-designed 7-day sequences to automate your habits and keep you on track
• Demo mode for testing

ON YOUR WRIST TOO
Fast 2 Fit includes a full Apple Watch app, so you can start, track, and check your fasting phase right from your wrist — synced automatically with your iPhone.

LIVE ACTIVITY & WIDGETS
Keep your fast visible without opening the app: add a Home Screen widget, or track your countdown on the Lock Screen and Dynamic Island with Live Activity.

STAY MOTIVATED
• Streak tracking — build consistency with consecutive day tracking
• Streak Preservation — "get back on the horse" logic that recognizes your progress even if you need to scale back a difficult fast, so you don't lose your momentum
• Trophies & achievements — earn rewards for milestones
• Confetti celebrations — celebrate completed fasts
• Smart notifications — get notified when you enter new phases

WEIGHT TRACKING
Seamlessly syncs with Apple Health to track your weight progress. See your 6-month trend with beautiful charts.

INTELLIGENT NOTIFICATIONS
• Phase change alerts ("You've entered ketosis!")
• One-hour countdown reminders
• Eating window reminders to maintain streaks

POLISHED DESIGN
• High-performance design with smooth animations
• Native support for Light and Dark modes
• Clean, distraction-free interface optimized for focus

PRIVACY FIRST
All data stays on your device and in your personal iCloud. No accounts, no servers, no tracking.

Fast 2 Fit's phase timelines are personalized estimates based on established fasting research, not a medical measurement — always listen to your body, especially during extended fasts.

## Is Fast 2 Fit safe?

Not enough ratings yet to assess Fast 2 Fit.

## Is Fast 2 Fit legit?

Fast 2 Fit appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Fast 2 Fit is 68 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-22

No release notes.

## More apps by Bjoern Ruthberg

- [Shoppers Aid](https://appshunter.io/ios/app/shoppers-aid/id1062333908)
- [Luna Sleep Trainer](https://appshunter.io/ios/app/luna-sleep-trainer/id6742899155)

All apps by Bjoern Ruthberg: https://appshunter.io/developer/1062333907

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-10.*