# FastFlow vs FastFlow

The clearest difference is ads: FastFlow at none against FastFlow's shown. FastFlow also leads on update cadence (every 2 days vs weekly). FastFlow's advantage is iOS requirement (13.0 vs 15.1). On price, 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 FastFlow sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

FastFlow ships an update every 2 days, FastFlow weekly. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | FastFlow | FastFlow |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 44 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Uprise iX LLC](https://appshunter.io/developer/1809234369) | [Lit Games Publishing LTD](https://appshunter.io/developer/1565278669) |

## 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 |


### FastFlow

[App page](https://appshunter.io/ios/app/fastflow-fasting-and-water-app/id6760019921)

This app combines intermittent fasting, AI calorie counting, and water tracking to help users lose weight and stay hydrated. It features an AI coach for personalized guidance and progress tracking tools.

**Highlights:** AI calorie counter with photo tracking, Smart intermittent fasting timer, Water intake tracking and reminders, AI fasting coach for personalized advice, Progress tracking with streaks and graphs, Multiple fasting protocols

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastFlow Weekly Premium | $1.99 | per 7 days |
| FastFlow Premium — Monthly Sub | $4.99 | per month |
| FastFlow Premium — Yearly Sub | $29.99 | per year |


## Frequently asked questions

### Is FastFlow free?

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

### Is FastFlow free?

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

### Do FastFlow or FastFlow have ads?

FastFlow shows ads; FastFlow does not.

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

FastFlow ships an update every 2 days, and FastFlow weekly. Most recently, FastFlow was updated on October 25, 2026 and FastFlow on November 5, 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.*