# 72Hour Fasting Timer vs FastLyfe

The clearest difference is price: FastLyfe at Free against 72Hour Fasting Timer's $1.99. FastLyfe also leads on update cadence (every 6 weeks vs every 7 months). 72Hour Fasting Timer's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

FastLyfe is free to download; 72Hour Fasting Timer costs $1.99 up front. FastLyfe sells 3 in-app purchases, starting at $5.99 per month. 72Hour Fasting Timer asks for nothing beyond the download.

72Hour Fasting Timer ships an update every 7 months, FastLyfe every 6 weeks. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 72Hour Fasting Timer | FastLyfe |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/72hour-fasting-timer/id6745131744/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 5 MB | 31 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [POWER SATELLITE LLC](https://appshunter.io/developer/1809833198) | [Cayden Williams](https://appshunter.io/developer/1870369963) |

## What reviewers say

### 72Hour Fasting Timer

[App page](https://appshunter.io/ios/app/72hour-fasting-timer/id6745131744)

This app assists users in tracking extended fasting periods of 24, 48, or 72 hours. It provides progress zones, statistics, and reminders to help users stay focused and motivated during their fasting journey.

**Highlights:** Smart fasting timer, Progress zones (fat burning, autophagy), Statistics and history, HealthKit sync, Notifications and reminders, Minimalist design

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### FastLyfe

[App page](https://appshunter.io/ios/app/fastlyfe-fasting-tracker/id6762158215)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $16.99 | per year |
| Lifetime Pro | $29.99 | one-time |


## Frequently asked questions

### Is 72Hour Fasting Timer free?

72Hour Fasting Timer costs $1.99, with no in-app purchases.

### Is FastLyfe free?

FastLyfe is free to download, with in-app purchases available.

### Do 72Hour Fasting Timer or FastLyfe have ads?

Neither 72Hour Fasting Timer nor FastLyfe shows ads.

### Which is updated more often, 72Hour Fasting Timer or FastLyfe?

72Hour Fasting Timer ships an update every 7 months, and FastLyfe every 6 weeks. Most recently, 72Hour Fasting Timer was updated on October 8, 2026 and FastLyfe on October 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*