# FastFlow vs カロリク

The clearest difference is update cadence: カロリク at every 10 days against FastFlow's every 4 months. カロリク also leads on iOS requirement (15.1 vs 17.0). 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 カロリク sells 2 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 4 months, カロリク every 10 days. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | FastFlow | カロリク |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 10 days** |
| Size | 2 MB | 60 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Renzo Ohhama](https://appshunter.io/developer/1812551739) | [Yokubari Palette LLC](https://appshunter.io/developer/1894683890) |

## What reviewers say

### FastFlow

[App page](https://appshunter.io/ios/app/fastflow/id6755752536)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FastFlow Premium - Monthly | $2.99 | per month |
| FastFlow Premium - Yearly | $22.99 | per year |


### カロリク

[App page](https://appshunter.io/ios/app/pfc/id6762562021)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| カロリクプレミアム 月額 | $2.99 | per month |
| カロリクプレミアム 年額 | $29.99 | per year |


## Frequently asked questions

### Is FastFlow free?

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

### Is カロリク free?

カロリク is free to download, with in-app purchases available.

### Do FastFlow or カロリク have ads?

Neither FastFlow nor カロリク shows ads.

### Which is updated more often, FastFlow or カロリク?

FastFlow ships an update every 4 months, and カロリク every 10 days. Most recently, FastFlow was updated on October 10, 2026 and カロリク on October 12, 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.*