# Intermittent Fasting Timer — Serene - Window fast starving

> Intermittent fasting and window fasting tracker with custom times and analytics. (iPhone/iPad app by Teleprompter LLC.)

- Source: https://appshunter.io/ios/app/intermittent-fasting-timer/id1454644270 (this page in markdown: same URL + `.md`)
- Developer: [Teleprompter LLC](https://appshunter.io/developer/823066256)
- Category: Health & Fitness, Utilities
- Price: Free with in-app purchases
- Rating: 4.80/5 from 806 App Store ratings · 324 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 11 MB
- Languages: American English, Hungarian
- Released: 2019-03-07
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/intermittent-fasting-timer/id1454644270/reviews.md

## What is Intermittent Fasting Timer?

Serene Fasting tracker is the best app to track your fasts. 
It is good for window and intermittent fasting too.
If you want to have the best tool to keep track of your fasts, this app is the right choice​.

Serene supports:
- Custom Fasting times
- Analytics
- Add fasts manually
- Export data to PDF
- Simple Timer
- Reminders
- Edit your previous fasts
- Today Widget
- Watch app

This app optionally integrates with the Health App to track your weight.
It is an opt-in feature that's accessible from the logs screen.

## Key features

- Custom fasting times
- Fasting analytics
- Manual fast entry
- Data export to PDF
- Simple timer
- Reminders
- Edit previous fasts

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Serene Pro Mode | Free | one-time |


## What do users think of Intermittent Fasting Timer?

Overall sentiment: positive

**Pros**

- 👍 Simple and easy to use
- 🚀 Straightforward fasting tracking
- 💰 Completely free app
- 🔒 No data collection or ads
- 🔍 Minimalist and clean design
- ⏱️ Helpful fasting timer and reminders
- 📊 Tracks fasting history and progress

**Cons**

- 🐛 Some issues with data/statistics display
- 🔔 Lack of Apple Watch integration to start/stop fasts
- 🕰️ Limited fasting duration (up to 72 hours)

**Commonly reported bugs**

- Incorrect display of past weight data
- Occasional app crashes or freezes

**Most requested features**

- Add option to set custom fasting duration limits
- Improve data/statistics display and organization
- Implement Apple Watch integration to control fasting timer

## Recent user reviews (10 of 324)

All indexed reviews: https://appshunter.io/ios/app/intermittent-fasting-timer/id1454644270/reviews.md

### 5/5 — Goat

*2026-07-31, version 1.1.1*

Simple . Effective. No bs

### 5/5 — Gratuity et genial

*2026-07-02*

Gratuit

### 5/5 — Thank you!

*2026-06-16, version 1.1.1*

Thank you for creating the app :)

### 3/5 — Perfect except the broken bits

*2026-03-16, version 1.1.1*

I just started using this app and the simplicity of it is what got me. I love that you can change the start time if you forgot to hit Start before fasting. I love the black color background. I love that you can only do two things: fasting time and scale entries. I love that it syncs automatically with the Apple Health app to grab data already there. 

But something is broken with the 7-day fast average. It is showing a number higher than any fast I’ve ever done. The calculation there is super broken. I would really like it fixed so that I can track my average fasts over time each week without manually crunching the data!

And you cannot send feedback from within the app! You need to have Apple Mail installed which I don’t, so I have to write this review to even have a CHANCE of a developer seeing this feedback. Dumb. 

Also really really HATE that while you can change from kilos to lbs, you can’t change the way the dates are set, date before month is so nonintuitive for Americans and there is no way to edit this. It makes it look like I’m doing one fast per month it’s super weird to my eye.

### 5/5 — Serene

*2026-02-21, version 1.1.1*

Good app

### 5/5 — GOOD APP FAST

*2026-01-08*

The best fast app in Apple Store! Thanks for the suport. You change my life!! 🙏
Brazil fan Here 🇧🇷

### 5/5 — Perfect

*2025-12-26, version 1.1.1*

Simple, exactly what I needed

### 5/5 — FREE with no fine print

*2025-12-24, version 1.1.1*

Finally. All I needed was a timer app to show how long I’ve been fasting for. This is it. No membership, no training/coaching with hidden fees, no 5 billion emails a week, just exactly what I asked for.

### 1/5 — Great App

*2025-12-17, version 1.1.1*

I do love this app cause it free and easy to use however many adding an alarm when your time is up would help, as I do forget to turn it off.

### 5/5 — Simply perfect

*2025-12-01, version 1.1.1*

I have been searching high and low for a fasting tracker that just does that. IF is not a diet plan for me, and I don't want a weight-loss goal! Thank you for providing this easy-to-use, simple tool that keeps my fasts on track and gives me enough data to be informed but not overwhelmed. I am amazed it is free!!

## Frequently asked questions about Intermittent Fasting Timer

### What does the Intermittent Fasting Timer app do?

This app helps you track your fasting periods, supporting both intermittent and window fasting. It provides a simple timer, allows for custom fasting durations, and offers analytics to monitor your progress.

### What are the key features of this fasting app?

Key features include custom fasting times, detailed analytics, manual entry and editing of fasts, data export to PDF, a simple timer, and reminders. It also includes a Today Widget and a Watch app for convenience.

### Is this app free to use?

The app is free to download and use, with optional in-app purchases available for additional features or content. There are no advertisements within the app.

### Can this app track my weight?

Yes, the app optionally integrates with the Health App to track your weight. This is an opt-in feature accessible from the logs screen, allowing you to connect your weight data.

### Who would benefit from using this app?

This app is designed for individuals who are practicing or interested in intermittent fasting or window fasting. It's ideal for those who want a dedicated tool to monitor their fasting schedules and view their progress.

## Version history (last 5 releases)

### 1.1.1 — 2021-07-16

Hey there,
1.1.1 is here! 
This version includes:
A home screen widget for following your fasts and a siri shortcuts for faster logging.
I also added a way to log your weights and follow the progress!
If you have any feedback, please send me a message!

### 1.1 — 2021-06-29

Hey there,
1.0.8 is here! 
This version includes:
A home screen widget for following your fasts and a siri shortcuts for faster logging.
I also added a way to log your weights and follow the progress!
If you have any feedback, please send me a message!

### 1.0.7 — 2020-09-08

Hey there,
1.0.7 is here! 
This version includes:
Fixed a small bug causing crashes sometime.
If you have any feedback, please send me a message!

### 1.0.6 — 2020-06-08

Hey there,
1.0.6 is here! 
This version includes:
Fixed a small bug causing crashes sometime.
If you have any feedback, please send me a message!

### 1.0.5 — 2019-10-02

Hey there,
1.0.4 is here! 
This version includes:
Fixed a small bug causing crashes sometime.
If you have any feedback, please send me a message!

## Apps similar to Intermittent Fasting Timer

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Fasting Tracker App - Fasta](https://appshunter.io/ios/app/fasting-tracker-app-fasta/id1523007967) | 4.6 (862) | Free | Health & Fitness |
| [Sunrise - Intermittent Fasting](https://appshunter.io/ios/app/sunrise-intermittent-fasting/id1458576177) | 4.8 (9,691) | Free | Health & Fitness |
| [Daily Fast](https://appshunter.io/ios/app/daily-fast/id1173229130) | 4.8 (3,478) | Free | Health & Fitness |
| [FastHabit Intermittent Fasting](https://appshunter.io/ios/app/fasthabit-intermittent-fasting/id974978016) | 4.8 (13,878) | Free | Health & Fitness |
| [Suavita: Fasting Tracker App](https://appshunter.io/ios/app/suavita-fasting-tracker-app/id1568443548) | 4.6 (3,664) | Free | Health & Fitness |
| [EatTimer: Fasting Tracker App](https://appshunter.io/ios/app/eattimer-fasting-tracker-app/id6444647086) | 4.8 (221) | Free | Health & Fitness |

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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 2026-08-29.*