# FastFlow vs Fastable

The clearest difference is ads: FastFlow at none against Fastable's shown. FastFlow also leads on update cadence (every 2 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. FastFlow sells 2 in-app purchases, starting at $2.99 per month and Fastable sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

FastFlow ships an update every 2 days, Fastable every 2 weeks. Both last shipped on November 9, 2026.

## The numbers

| Metric | FastFlow | Fastable |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 35 MB | 55 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Uprise iX LLC](https://appshunter.io/developer/1809234369) | [Islambek Abdykarim Uulu](https://appshunter.io/developer/1866532694) |

## What reviewers say

### FastFlow

[App page](https://appshunter.io/ios/app/fastflow-intermittent-fasting/id6758635076)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $2.99 | per month |
| Weekly Subscription | $8.99 | per 7 days |


### Fastable

[App page](https://appshunter.io/ios/app/fastable-intermittent-fasting/id6758980783)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fastable Pro (1 Month) | $2.99 | per month |
| Fastable Pro (1 Year) | $11.99 | per year |
| Fastable Pro (Lifetime) | $29.99 | one-time |


## Frequently asked questions

### Is FastFlow free?

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

### Is Fastable free?

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

### Do FastFlow or Fastable have ads?

Fastable shows ads; FastFlow does not.

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

FastFlow ships an update every 2 days, and Fastable every 2 weeks. Most recently, FastFlow was updated on November 9, 2026 and Fastable on November 9, 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.*