# LeanFast: Intermittent Fasting — Ad-free timer, tracker & plan

> Ad-free timer, tracker & plan (iPhone/iPad app by Hajer Trabelsi.)

- Source: https://appshunter.io/ios/app/leanfast-intermittent-fasting/id6818318288 (this page in markdown: same URL + `.md`)
- Developer: [Hajer Trabelsi](https://appshunter.io/developer/6826828505)
- Category: Health & Fitness, Lifestyle
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 26.1 · 47 MB
- Languages: American English, Arabic, Catalan, Dutch, French (France), German (Germany), Hindi, Indonesian, Italian, Japanese and 8 more
- Released: 2026-10-13
- Data updated: 2026-10-31

## What is LeanFast?

Plan, track and keep up your intermittent fasting, with water, weight and food in one place. LeanFast shapes a plan around your body and your week, shows Fasting or Eating at a glance, logs your fasts, water, meals and weigh-ins, and suggests recipes for your eating window. No ads, no trackers, AI that stays on your device, and safety built in. Free to start.

WHY LEANFAST
• No ads, ever. No trackers, and your data is never sold.
• Private AI: with Apple Intelligence, Coach answers your questions on your device, with the sources behind each answer, and Lens reads labels and barcodes there too. Smart Lens is optional, runs in Europe and doesn't keep your photo.
• Safety first: a short health check adapts your plan, and "I don't feel well" stops your fast and calls the local emergency number in 234 countries and territories.
• Backed by science: every source is listed in Settings › Health sources.
• Accessible: VoiceOver, Dynamic Type at every size and Reduce Motion.
• Everywhere: iPhone, iPhone Duo, iPad and Apple Watch.

ALWAYS OBVIOUS
One big word tells you where you are: Fasting, Eating or Not fasting, on Today, your Lock Screen, widgets and Apple Watch. Tap Start fast in the evening reminder, or turn on Autopilot: every planned fast starts when your eating window closes and ends when the next one opens.

PLANS AS UNIQUE AS YOU
LeanFast recommends Spark (from 12:12), Flow (the classic 16:8) or Blaze (longer fasts) and eases you in over four weeks. Shape every day on a 24-hour dial: brunch on Sunday, a late dinner on Friday, rest days when you need them.

A TIMER YOU CAN GLANCE AT
Follow your body stage by stage, with a new explanation at each milestone, on your Lock Screen, in the Dynamic Island, widgets and Control Center. Siri can start your fast, and the Watch app keeps going when your iPhone is out of range.

MOTIVATION THAT'S GOOD FOR YOU
Weekly challenges and levels reward consistency, water and logging, never longer fasts. A sick day never breaks your streak, and friendly water reminders let you log a glass from the notification.

LEANFAST PRISM
• Lens: a Fast-Friendly grade, nutrition facts and healthier swaps for any meal, label or barcode.
• Kitchen: 96 photographed recipes to break your fast, with cook mode, timers and a shopping list.
• Coach: a weekly review, answers to your questions and a nudge when your plan should change.
• Deep insights: weight trend, goal forecast, consistency calendar and time in each stage.
• Ring themes, app icons, progress photos, Streak Shields and custom fasts.

WORKS WITH APPLE HEALTH
Fill in your profile from Apple Health, import weigh-ins from your smart scale and save the weight and water you log. You choose what's shared.

PRICING
Free to use, no account needed. Prism is available monthly or yearly (each with a 7-day free trial) or as a one-time lifetime purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period; manage them in your Apple Account settings.

LeanFast provides general wellness information and is not a medical device or a substitute for professional medical advice.

Terms: https://lean-fast.com/terms
Privacy: https://lean-fast.com/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Prism Yearly | $29.99 | per year |
| Prism Monthly | $3.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Prism Lifetime | $49.99 | one-time |


## Is LeanFast safe?

Not enough ratings yet to assess LeanFast.

## Is LeanFast legit?

LeanFast: Intermittent Fasting has limited verification signals. The AppsHunter Legitimacy Score for LeanFast is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.3.1 — 2026-10-28

• When you reach your goal, the fast's ring now closes into a full circle, on Today and in the widgets.
• The weight card in Progress shows your latest weigh-in, how much it has changed since the first day on the chart, and a trend that catches up after a few days without weighing in.
• Fixes a rare crash after your device restarts.

### 1.3 — 2026-10-27

• A short tour shows you around Today, Plan, Lens and Progress. It plays once, and you can take it again from Help.
• Autopilot now lives in Plan. Turn it on and your fasts start when your eating window closes and end when the next one opens. Switch it on during a fast and it takes that fast over too.
• Short cards on what fasting can do for you, with the studies behind them, in onboarding and through your first week.
• Today's note: one short, sourced line each day, free for everyone.
• Progress updates: at most one a day about your streak, badges, challenges and monthly recap, never during your sleep hours. Turn them off anytime in Settings.
• New widgets: the Today ring on your Home Screen, on your Lock Screen and in StandBy.
• After a late end, the eating ring shows the time you really have left.

### 1.2.1 — 2026-10-26

• Sign in with Apple or Google, or keep using an email code.
• Prism now follows your account, so a purchase also unlocks LeanFast on your other devices, Android included.
• Each plan shows one realistic goal estimate, and the goal weight can't go below a healthy weight.
• Gentler onboarding when fasting isn't right for you.
• Sync is more reliable between iPhone, iPad and Android.
• You may need to sign in once more after this update. Your data stays on your device.

### 1.2 — 2026-10-20

• Each plan now shows the date you could reach your goal weight.
• New photos in the setup screens.
• New badge designs and a new Prism logo.
• On Apple Watch, the fast's ring follows the edge of the screen.
• We reread every language and reworded what sounded off.
• Reminders now arrive even if you haven't opened the app in days.
• Deleting your account removes it from all your devices.
• Lens updates the grade when you change a portion, and a photo with no food in it no longer uses a free scan.
• Fixes for plans, streaks, challenges, sync and Apple Health.

### 1.1 — 2026-10-17

Our biggest update yet:

• Ten new languages: Arabic (fully right to left), Simplified Chinese, Japanese, Korean, Turkish, Indonesian, Malay, Hindi, Dutch and Polish. Every existing language was reviewed and polished too.
• 16 new recipes in Kitchen, 96 in all.
• Your monthly recap, all month long.
• New Siri phrases, cook timers on your Lock Screen and a large widget.
• Handoff from Kitchen to recipe pages on lean-fast.com.
• iPhone Duo support: the layout adapts as you fold and unfold.

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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 2026-10-31.*