# Fastly vs Fastology

The clearest difference is in-app purchases: Fastology at none against Fastly's 4. Fastly's advantage is ratings volume (92 vs 10). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Fastly sells 4 one-off in-app purchases. Fastology asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.8 for Fastly against 4.9 for Fastology. That said, the two scores are not equally well evidenced: Fastly has 92 ratings behind it against 10, so its average is the more settled of the two. Written reviews are what separate them: 94% of Fastly's written reviews are positive against 100% of Fastology's.

Fastly ships an update every 10 days, Fastology every 3 weeks. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Fastly | Fastology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (92 ratings)](https://appshunter.io/ios/app/fastly-clean-fasting-timer/id6756632894/reviews) | **[4.9 (10 ratings)](https://appshunter.io/ios/app/fastology-fasting-tracker/id6761324779/reviews)** |
| Number of ratings | **92** | 10 |
| Positive reviews | 94.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 9 MB | 40 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Collweb LLC](https://appshunter.io/developer/1822634213) | [SmallScale Works LLC](https://appshunter.io/developer/1888909483) |

## What reviewers say

### 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 |


### Fastology

[App page](https://appshunter.io/ios/app/fastology-fasting-tracker/id6761324779)

This app provides structured tracking for intermittent fasting, going beyond simple timers. It helps users follow specific fasting schedules with clear phase progress, build consistency through streaks, and manage a flexible weekly plan. Focuses on discipline and reducing guesswork for a clearer fasting experience.

**Highlights:** Track various fast types (16:8, OMAD, extended), Live phase-by-phase progress tracking, Build streaks from completed fasts, Flexible weekly fasting schedule, Review fasting history, Ask fasting questions with reviewed answers, Siri and Shortcuts integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Fastly free?

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

### Is Fastology free?

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

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

Fastology is rated higher. Fastly averages 4.8 out of 5 from 92 ratings, while Fastology averages 4.9 from 10 ratings.

### Do Fastly or Fastology have ads?

Neither Fastly nor Fastology shows ads.

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

Fastly ships an update every 10 days, and Fastology every 3 weeks. Most recently, Fastly was updated on September 27, 2026 and Fastology on September 26, 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.*