# Steadfast vs Waterfaster

The clearest difference is device support: Steadfast at 3 against Waterfaster's 1. Waterfaster's advantage is iOS requirement (16.4 vs 26.2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Steadfast sells 2 in-app purchases, starting at $3.99 per month and Waterfaster sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Steadfast ships an update weekly, Waterfaster every 11 days. Both last shipped on October 5, 2026.

## The numbers

| Metric | Steadfast | Waterfaster |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/steadfast-fasting-tracker/id6761577451/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 11 days |
| Monetization | Freemium | — |
| Size | 4 MB | 59 MB |
| Requires iOS | 26.2 | **16.4** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [CognitiveCore Technologies, LLC](https://appshunter.io/developer/1890309148) | [AMIT Solutions](https://appshunter.io/developer/1892726088) |

## 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 |


### Waterfaster

[App page](https://appshunter.io/ios/app/waterfaster-fasting-tracker/id6762065095)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Waterfaster+ | $3.99 | per 7 days |
| Waterfaster+ | $44.99 | per year |
| Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is Steadfast free?

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

### Is Waterfaster free?

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

### Do Steadfast or Waterfaster have ads?

Neither Steadfast nor Waterfaster shows ads.

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

Steadfast ships an update weekly, and Waterfaster every 11 days. Most recently, Steadfast was updated on October 5, 2026 and Waterfaster on October 5, 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.*