# WaveFast vs Ayuno

The clearest difference is monetization model: WaveFast at free against Ayuno's freemium. WaveFast also leads on iOS requirement (17.6 vs 26.0). Ayuno's advantage is update cadence (every 4 days vs every 3 weeks). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. WaveFast sells 1 one-off in-app purchase and Ayuno sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for WaveFast against 5.0 for Ayuno. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

WaveFast ships an update every 3 weeks, Ayuno every 4 days. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | WaveFast | Ayuno |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/wavefast-fasting-tracker/id6764770817/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/ayuno-intermittent-fasting/id6787856522/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 20 MB | 4 MB |
| Requires iOS | **17.6** | 26.0 |
| Devices | iPhone | iPhone |
| Age rating | 9+ | 12+ |
| Developer | [瑞华 张](https://appshunter.io/developer/1608130007) | [Brandon Duncan](https://appshunter.io/developer/1858118962) |

## 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 |


### Ayuno

[App page](https://appshunter.io/ios/app/ayuno-intermittent-fasting/id6787856522)

This app helps users build consistent intermittent fasting habits with a simple timer, health guidance, and progress tracking. It offers premium features like journaling, detailed insights, and personalized coaching.

**Highlights:** Simple fasting timer, Health-conscious guidance, Journaling (Premium), Progress logging (Premium), Meaningful insights (Premium), Apple Health integration, Live Activities & Widgets (Premium)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium Annual | $39.99 | per year |


## Frequently asked questions

### Is WaveFast free?

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

### Is Ayuno free?

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

### Which has better reviews, WaveFast or Ayuno?

WaveFast and Ayuno are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do WaveFast or Ayuno have ads?

Neither WaveFast nor Ayuno shows ads.

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

WaveFast ships an update every 3 weeks, and Ayuno every 4 days. Most recently, WaveFast was updated on October 3, 2026 and Ayuno on October 4, 2026.

---

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