# Steadfast vs FastLyfe

The clearest difference is update cadence: Steadfast at weekly against FastLyfe's every 6 weeks. FastLyfe's advantage is iOS requirement (13.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Steadfast sells 2 in-app purchases, starting at $3.99 per month and FastLyfe sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Steadfast ships an update weekly, FastLyfe every 6 weeks. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Steadfast | FastLyfe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (7 ratings)](https://appshunter.io/ios/app/steadfast-fasting-tracker/id6761577451/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Freemium | — |
| Size | 4 MB | 31 MB |
| Requires iOS | 26.2 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CognitiveCore Technologies, LLC](https://appshunter.io/developer/1890309148) | [Cayden Williams](https://appshunter.io/developer/1870369963) |

## What reviewers say

### Steadfast

[App page](https://appshunter.io/ios/app/steadfast-fasting-tracker/id6761577451)

This app helps you track your fasting windows and hydration with a simple, ad-free interface. It offers customizable schedules, water logging, and insights into your body's fasting zones. Premium features provide advanced analytics and customization options.

**Highlights:** One-tap fasting timer, Water tracking with goals, Fasting zone insights, Streak tracking, Hydration reminders, Home screen widgets, Apple Watch app, HealthKit integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Yearly | $24.99 | per year |


### 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 Steadfast free?

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

### Is FastLyfe free?

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

### Do Steadfast or FastLyfe have ads?

Neither Steadfast nor FastLyfe shows ads.

### Which is updated more often, Steadfast or FastLyfe?

Steadfast ships an update weekly, and FastLyfe every 6 weeks. Most recently, Steadfast was updated on October 31, 2026 and FastLyfe on November 3, 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.*