# FastingCat vs HeyFast

The clearest difference is update cadence: FastingCat at every 6 days against HeyFast's every 2 weeks. HeyFast's advantage is iOS requirement (15.0 vs 17.0). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. FastingCat sells 10 in-app purchases, starting at $0.99 per month and HeyFast sells 3 in-app purchases, starting at $1.99 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 — 4.9 for FastingCat against 4.9 for HeyFast. Both are backed by a comparable volume of ratings — 56 and 27 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

FastingCat ships an update every 6 days, HeyFast every 2 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | FastingCat | HeyFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (56 ratings)](https://appshunter.io/ios/app/fastingcat-fast-tracker-if/id6748528990/reviews)** | [4.9 (27 ratings)](https://appshunter.io/ios/app/heyfast-intermittent-fasting/id6755427913/reviews) |
| Number of ratings | **56** | 27 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 24 MB | 72 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [ProApps Solutions](https://appshunter.io/developer/1760776062) | [Nomad88 Co., Ltd.](https://appshunter.io/developer/1782240827) |

## What reviewers say

### 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 |


### HeyFast

[App page](https://appshunter.io/ios/app/heyfast-intermittent-fasting/id6755427913)

This app guides you through personalized intermittent fasting schedules like 16:8 and 14:10. Track your weight, receive reminders, and build sustainable healthy habits for long-term weight management.

**Highlights:** Personalized intermittent fasting plans, Multiple fasting schedules (16:8, 14:10, 18:6), Daily weight tracking, Progress visualization, Healthy habit building tools, Reminders and motivation

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HeyFast Pro - Monthly | $1.99 | per month |
| HeyFast Pro - Yearly | $12.99 | per year |
| HeyFast Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is FastingCat free?

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

### Is HeyFast free?

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

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

FastingCat is rated higher. FastingCat averages 4.9 out of 5 from 56 ratings, while HeyFast averages 4.9 from 27 ratings.

### Do FastingCat or HeyFast have ads?

Neither FastingCat nor HeyFast shows ads.

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

FastingCat ships an update every 6 days, and HeyFast every 2 weeks. Most recently, FastingCat was updated on November 5, 2026 and HeyFast on November 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.*