# iFast vs FastingCat

The clearest difference is in-app purchases: iFast at none against FastingCat's 10. iFast also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). FastingCat's advantage is ads (none vs shown) and rating (4.9 vs 4.6). On price, ratings volume and update cadence there is nothing between them.

Both are free to download. FastingCat sells 10 in-app purchases, starting at $0.99 per month. iFast asks for nothing beyond the download.

FastingCat holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 22 and 55 respectively. Written reviews point the same way: 86% of iFast's written reviews are positive against 100% of FastingCat's.

iFast ships an update every 3 days, FastingCat every 6 days. The most recent releases landed on September 22, 2026 and August 7, 2026 respectively.

## The numbers

| Metric | iFast | FastingCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (22 ratings)](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693/reviews) | **[4.9 (55 ratings)](https://appshunter.io/ios/app/fastingcat-fast-tracker-if/id6748528990/reviews)** |
| Number of ratings | 22 | **55** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 6 days |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 62 MB | 24 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Manu Mehrotra](https://appshunter.io/developer/1607252474) | [ProApps Solutions](https://appshunter.io/developer/1760776062) |

## What reviewers say

### iFast

[App page](https://appshunter.io/ios/app/ifast-simple-fast-tracker/id1670053693)

This app helps you track your fasting periods and monitor your progress towards your health goals. It supports various popular fasting methods, including circadian rhythm fasting and intermittent fasting schedules.

**Highlights:** Track fasting periods, Monitor progress, Support for popular fasting types, Circadian rhythm fasting, Intermittent fasting schedules, Custom prolonged fasts

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

**In-app purchases:** none


### FastingCat

[App page](https://appshunter.io/ios/app/fastingcat-fast-tracker-if/id6748528990)

Master intermittent fasting with a focused timer and science-backed tracking. Monitor your progress with detailed insights, charts, and smart notifications to stay motivated and in control of your fasting journey. Your privacy is prioritized with on-device data storage and no ads.

**Highlights:** Customizable fasting presets, Science-backed fasting zone tracking, Detailed progress charts, Flexible scheduling with grace days, Smart notifications, Seamless weight logging, On-device data privacy

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Donation (Cookie) | $0.99 | per month |
| Monthly Donation (Donut) | $2.49 | per month |
| Monthly Donation (Smoothie) | $4.99 | per month |
| Monthly Donation (Salad) | $7.99 | per month |
| Monthly Donation (Protein) | $9.99 | per month |
| One-time Donation (Coffee) | $1.99 | one-time |
| One-time Donation (Sandwich) | $4.99 | one-time |
| One-time Donation (Pizza) | $9.99 | one-time |
| One-time Donation (Groceries) | $24.99 | one-time |
| One-time Donation (Books) | $49.99 | one-time |


## Frequently asked questions

### Is iFast free?

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

### Is FastingCat free?

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

### Which has better reviews, iFast or FastingCat?

FastingCat is rated higher. iFast averages 4.6 out of 5 from 22 ratings, while FastingCat averages 4.9 from 55 ratings.

### Do iFast or FastingCat have ads?

iFast shows ads; FastingCat does not.

### Which is updated more often, iFast or FastingCat?

iFast ships an update every 3 days, and FastingCat every 6 days. Most recently, iFast was updated on September 22, 2026 and FastingCat on August 7, 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.*