# 9toFast vs Fastly

The clearest difference is in-app purchases: Fastly at none against 9toFast's 3. Fastly also leads on ads (none vs shown). 9toFast's advantage is iOS requirement (15.1 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. 9toFast sells 3 in-app purchases, starting at $0.99 per month. Fastly asks for nothing beyond the download.

9toFast ships an update fortnightly, Fastly every 9 days. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 9toFast | Fastly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/fastly-fast-timer-and-tracker/id6762475115/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 9 days** |
| Monetization | — | Free |
| Size | 47 MB | 5 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Esther Yekini](https://appshunter.io/developer/1847063956) | [Tejas Patel](https://appshunter.io/developer/1197936144) |

## What reviewers say

### 9toFast

[App page](https://appshunter.io/ios/app/9tofast/id6754204142)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $0.99 | per month |
| Premium Yearly | $9.99 | per year |
| Premium Lifetime | $19.99 | one-time |


### Fastly

[App page](https://appshunter.io/ios/app/fastly-fast-timer-and-tracker/id6762475115)

This app helps you track intermittent fasting with a clean interface, customizable plans, and motivational features. Monitor your body's response through different fasting zones and visualize progress with charts and widgets. Your data remains private, stored locally or optionally via iCloud.

**Highlights:** Customizable fasting plans (16:8, OMAD, etc.), Real-time circular timer and zone tracking, Motivational streaks, badges, and calendar heatmap, Weight tracking with trend visualization, Home screen widgets and Live Activities, Optional iCloud sync and CSV export

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

**In-app purchases:** none


## Frequently asked questions

### Is 9toFast free?

9toFast is free to download, with in-app purchases available.

### Is Fastly free?

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

### Do 9toFast or Fastly have ads?

9toFast shows ads; Fastly does not.

### Which is updated more often, 9toFast or Fastly?

9toFast ships an update fortnightly, and Fastly every 9 days. Most recently, 9toFast was updated on October 15, 2026 and Fastly on October 13, 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.*