# FastFlow vs Hush

The clearest difference is in-app purchases: FastFlow at none against Hush's 2. Hush's advantage is update cadence (every 2 days vs every 4 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Hush sells 2 one-off in-app purchases. FastFlow asks for nothing beyond the download.

FastFlow ships an update every 4 months, Hush every 2 days. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | FastFlow | Hush |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 2 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 34 MB | 9 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 12+ | 4+ |
| Developer | [Caprio Lab](https://appshunter.io/developer/1841174043) | [KUREHO](https://appshunter.io/developer/1884942706) |

## 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


### Hush

[App page](https://appshunter.io/ios/app/hush-intermittent-fasting/id6774887823)

This app offers a quiet and focused intermittent fasting timer. It provides essential features like a center ring timer, preset fasting schedules, and helpful hints during fasting periods. Users can also utilize a home screen widget for at-a-glance tracking and enjoy a privacy-first approach with on-device data storage.

**Highlights:** Center ring timer, Four classic fasting presets, Hunger-peak hint notifications, Home screen widget, Streak tracking, Privacy-first data storage

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Plus | $11.99 | one-time |


## Frequently asked questions

### Is FastFlow free?

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

### Is Hush free?

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

### Do FastFlow or Hush have ads?

Both FastFlow and Hush show ads.

### Which is updated more often, FastFlow or Hush?

FastFlow ships an update every 4 months, and Hush every 2 days. Most recently, FastFlow was updated on October 20, 2026 and Hush 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.*