# FastFlow vs Paleo Fasting

The clearest difference is update cadence: FastFlow at every 2 days against Paleo Fasting's every 3 weeks. FastFlow also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. FastFlow sells 2 in-app purchases, starting at $2.99 per month and Paleo Fasting sells 3 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

FastFlow ships an update every 2 days, Paleo Fasting every 3 weeks. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | FastFlow | Paleo Fasting |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 3 weeks |
| Size | 35 MB | 6 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Uprise iX LLC](https://appshunter.io/developer/1809234369) | [Paleo Karma LLC](https://appshunter.io/developer/1890413493) |

## 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 |


### Paleo Fasting

[App page](https://appshunter.io/ios/app/paleo-fasting-tracker-and-timer/id6761606714)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Access | $8.99 | per month |
| Annual Access | $59.99 | per year |
| Lifetime Access | $199.99 | one-time |


## Frequently asked questions

### Is FastFlow free?

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

### Is Paleo Fasting free?

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

### Do FastFlow or Paleo Fasting have ads?

Neither FastFlow nor Paleo Fasting shows ads.

### Which is updated more often, FastFlow or Paleo Fasting?

FastFlow ships an update every 2 days, and Paleo Fasting every 3 weeks. Most recently, FastFlow was updated on October 14, 2026 and Paleo Fasting on October 19, 2026.

---

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