# DoFast vs Fastly

The clearest difference is update cadence: Fastly at every 9 days against DoFast's every 2 months. DoFast's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DoFast ships an update every 2 months, Fastly every 9 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | DoFast | 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 | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | — | Free |
| Size | 8 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Igor Lenderman](https://appshunter.io/developer/1886154638) | [Tejas Patel](https://appshunter.io/developer/1197936144) |

## What reviewers say

### DoFast

[App page](https://appshunter.io/ios/app/dofast-intermittent-fasting/id6760772207)

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

**In-app purchases:** none


### 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 DoFast free?

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

### Is Fastly free?

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

### Do DoFast or Fastly have ads?

Neither DoFast nor Fastly shows ads.

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

DoFast ships an update every 2 months, and Fastly every 9 days. Most recently, DoFast was updated on October 16, 2026 and Fastly on October 13, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*