# FastingCat vs Fastly

FastingCat and Fastly are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. FastingCat sells 10 in-app purchases, starting at $0.99 per month and Fastly sells 4 one-off in-app purchases. 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 4.8 for Fastly. Both are backed by a comparable volume of ratings — 55 and 92 respectively. Written reviews are what separate them: 100% of FastingCat's written reviews are positive against 94% of Fastly's.

FastingCat ships an update every 6 days, Fastly every 10 days. The most recent releases landed on August 7, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | FastingCat | Fastly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (55 ratings)](https://appshunter.io/ios/app/fastingcat-fast-tracker-if/id6748528990/reviews)** | [4.8 (92 ratings)](https://appshunter.io/ios/app/fastly-clean-fasting-timer/id6756632894/reviews) |
| Number of ratings | 55 | **92** |
| Positive reviews | **100.0% of reviews** | 94.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 10 days |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 24 MB | 9 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [ProApps Solutions](https://appshunter.io/developer/1760776062) | [Collweb LLC](https://appshunter.io/developer/1822634213) |

## 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 |


### Fastly

[App page](https://appshunter.io/ios/app/fastly-clean-fasting-timer/id6756632894)

This app provides a clean and distraction-free timer for intermittent fasting. It tracks your fasting periods in real-time, offers various popular fasting plans, and automatically monitors fasting phases like fat burning and ketosis. View your history with clear statistics and receive smart reminders.

**Highlights:** Clean fasting timer with real-time tracking, Multiple intermittent fasting plans, Automatic fasting phase tracking, Fasting history with statistics, Smart reminders for goals, Minimalist interface, Dark mode support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |
| Lunch | $4.99 | one-time |
| Become a Supporter | $4.99 | one-time |
| Dinner | $9.99 | one-time |


## Frequently asked questions

### Is FastingCat free?

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

### Is Fastly free?

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

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

FastingCat is rated higher. FastingCat averages 4.9 out of 5 from 55 ratings, while Fastly averages 4.8 from 92 ratings.

### Do FastingCat or Fastly have ads?

Neither FastingCat nor Fastly shows ads.

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

FastingCat ships an update every 6 days, and Fastly every 10 days. Most recently, FastingCat was updated on August 7, 2026 and Fastly on September 23, 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.*