# WaveFast vs Fasty

The clearest difference is in-app purchases: Fasty at none against WaveFast's 1. Fasty also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. WaveFast sells 1 one-off in-app purchase. Fasty asks for nothing beyond the download.

WaveFast ships an update every 3 weeks, Fasty every 3 days. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | WaveFast | Fasty |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/wavefast-fasting-tracker/id6764770817/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Free | — |
| Size | 20 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 9+ | 4+ |
| Developer | [瑞华 张](https://appshunter.io/developer/1608130007) | [长贵 周](https://appshunter.io/developer/6779968395) |

## What reviewers say

### WaveFast

[App page](https://appshunter.io/ios/app/wavefast-fasting-tracker/id6764770817)

Track your intermittent fasting with a visually engaging and user-friendly interface. This app offers a one-time purchase, no subscriptions, and prioritizes user privacy by storing all data locally. Stay motivated with fluid animations and smart notifications.

**Highlights:** Mesmerizing fluid wave animation, Dynamic Island & Live Activities integration, History and streak tracking, Customizable water themes, Body status insights, Smart notifications, Privacy-focused local data storage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WaveFast Pro | $4.99 | one-time |


### Fasty

[App page](https://appshunter.io/ios/app/fasty-if-fasting-timer-app/id6779994881)

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

**In-app purchases:** none


## Frequently asked questions

### Is WaveFast free?

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

### Is Fasty free?

Fasty is free to download, with no in-app purchases.

### Do WaveFast or Fasty have ads?

Neither WaveFast nor Fasty shows ads.

### Which is updated more often, WaveFast or Fasty?

WaveFast ships an update every 3 weeks, and Fasty every 3 days. Most recently, WaveFast was updated on October 3, 2026 and Fasty on October 2, 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.*