# PerfectFast vs Fasty Solo

The clearest difference is update cadence: PerfectFast at every 9 days against Fasty Solo's every 4 months. 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.

PerfectFast ships an update every 9 days, Fasty Solo every 4 months. Both last shipped on October 28, 2026.

## The numbers

| Metric | PerfectFast | Fasty Solo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/perfectfast-fasting-timer/id6759067877/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 4 months |
| Monetization | Free | — |
| Size | 32 MB | 3 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Idan Lupinsky](https://appshunter.io/developer/1876630037) | [Kyle Buttress](https://appshunter.io/developer/287288208) |

## What reviewers say

### PerfectFast

[App page](https://appshunter.io/ios/app/perfectfast-fasting-timer/id6759067877)

This app helps you track intermittent and extended fasting periods with a clean, focused interface. It supports various fasting schedules, custom durations, and provides detailed history and statistics to monitor your progress.

**Highlights:** Intermittent and extended fast tracking, Custom fasting schedules, Fasting history and statistics, Reminders and notifications, Apple Watch companion app, Live Activity support

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

**In-app purchases:** none


### Fasty Solo

[App page](https://appshunter.io/ios/app/fasty-solo/id6763825204)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is PerfectFast free?

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

### Is Fasty Solo free?

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

### Do PerfectFast or Fasty Solo have ads?

Neither PerfectFast nor Fasty Solo shows ads.

### Which is updated more often, PerfectFast or Fasty Solo?

PerfectFast ships an update every 9 days, and Fasty Solo every 4 months. Most recently, PerfectFast was updated on October 28, 2026 and Fasty Solo on October 28, 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.*