# Intermittent vs Aayu

The clearest difference is monetization model: Intermittent at free against Aayu's freemium. Intermittent also leads on ratings volume (48 vs 2) and device support (3 vs 1). Aayu's advantage is update cadence (every 4 days vs every 10 days). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for Intermittent against 5.0 for Aayu. That said, the two scores are not equally well evidenced: Intermittent has 48 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Intermittent ships an update every 10 days, Aayu every 4 days. The most recent releases landed on October 22, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Intermittent | Aayu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (48 ratings)](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6767781311/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/aayu-intermittent-fasting/id6775842465/reviews)** |
| Number of ratings | **48** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 39 MB | 77 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [Rohit Kumar](https://appshunter.io/developer/1896508140) | [Aayu Wellness Ltd](https://appshunter.io/developer/6775842467) |

## What reviewers say

### Intermittent

[App page](https://appshunter.io/ios/app/intermittent-fasting-tracker/id6767781311)

This app tracks your fasting progress by showing real-time biological phases like ketosis and autophagy. It provides science-backed explanations for each stage and supports various fasting protocols without requiring an account or subscription.

**Highlights:** Real-time biological phase tracking (Fed, Lipolysis, Ketosis, Autophagy), Support for multiple fasting protocols (12:12 to 72-hour fasts), Free science library with cited primary sources, Adaptive hydration target, Weight and progress tracking with trend analysis, Private sharing circle with applause-only responses, Home screen widget and cross-device sync

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

**In-app purchases:** none


### Aayu

[App page](https://appshunter.io/ios/app/aayu-intermittent-fasting/id6775842465)

Track your body's metabolic zones in real-time during fasting to understand progress beyond simple timers. Offers personalized plans, hydration tracking, and curated meal ideas to support your weight loss journey. Advanced features are available through an optional subscription.

**Highlights:** Real-time metabolic zone tracking, Personalized fasting plans, Curated break-fast meal suggestions, Hydration and step tracking, Metabolic discipline score, Learn library of fasting articles

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

**In-app purchases:** none


## Frequently asked questions

### Is Intermittent free?

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

### Is Aayu free?

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

### Which has better reviews, Intermittent or Aayu?

Aayu is rated higher. Intermittent averages 5.0 out of 5 from 48 ratings, while Aayu averages 5.0 from 2 ratings.

### Do Intermittent or Aayu have ads?

Neither Intermittent nor Aayu shows ads.

### Which is updated more often, Intermittent or Aayu?

Intermittent ships an update every 10 days, and Aayu every 4 days. Most recently, Intermittent was updated on October 22, 2026 and Aayu on October 18, 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.*