# FastFlow vs Intermittent Fasting Flow

The clearest difference is in-app purchases: FastFlow at none against Intermittent Fasting Flow's 2. FastFlow also leads on iOS requirement (15.1 vs 17.6). Intermittent Fasting Flow's advantage is ads (none vs shown) and update cadence (every 4 days vs every 4 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. Intermittent Fasting Flow sells 2 in-app purchases, starting at $1.99 per month. FastFlow asks for nothing beyond the download.

FastFlow ships an update every 4 months, Intermittent Fasting Flow every 4 days. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | FastFlow | Intermittent Fasting Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (7 ratings)](https://appshunter.io/ios/app/intermittent-fasting-flow/id6758163617/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 4 days** |
| Monetization | **Ad-supported** | Freemium |
| Size | 34 MB | 6 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Caprio Lab](https://appshunter.io/developer/1841174043) | [IVAYLO PLAMENOV VACHKOV](https://appshunter.io/developer/1869829896) |

## What reviewers say

### FastFlow

[App page](https://appshunter.io/ios/app/fastflow-fasting-tracker/id6756208094)

This app helps users manage intermittent fasting schedules with a visual timer and customizable patterns. It also allows for weight tracking, meal logging with photos, and smart notifications to build healthy habits.

**Highlights:** Circular fasting timer, Flexible fasting patterns, Weight progress graph, Meal logging with photos, Smart notifications, Cloud data sync

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

**In-app purchases:** none


### Intermittent Fasting Flow

[App page](https://appshunter.io/ios/app/intermittent-fasting-flow/id6758163617)

Track your fasting periods with a clean, ad-free timer. Choose from various fasting plans and monitor your progress with live widgets. Sync data with Apple Health and use Siri shortcuts for hands-free control.

**Highlights:** Ad-free fasting timer, Lock screen and home screen widgets, Multiple fasting plan durations, Customizable start times, Streak tracking and milestone badges, Apple Health integration, Siri shortcuts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Yearly | $19.99 | per year |


## Frequently asked questions

### Is FastFlow free?

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

### Is Intermittent Fasting Flow free?

Intermittent Fasting Flow is free to download, with in-app purchases available.

### Do FastFlow or Intermittent Fasting Flow have ads?

FastFlow shows ads; Intermittent Fasting Flow does not.

### Which is updated more often, FastFlow or Intermittent Fasting Flow?

FastFlow ships an update every 4 months, and Intermittent Fasting Flow every 4 days. Most recently, FastFlow was updated on September 16, 2026 and Intermittent Fasting Flow on September 22, 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.*