# Roller BJJ vs Flow

The clearest difference is in-app purchases: Roller BJJ at none against Flow's 2. Flow's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Flow sells 2 in-app purchases, starting at $4.99 per month. Roller BJJ asks for nothing beyond the download.

## The numbers

| Metric | Roller BJJ | Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | — |
| Size | 19 MB | 42 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Dornan](https://appshunter.io/developer/1865035474) | [Pivot Point Labs](https://appshunter.io/developer/1896603880) |

## What reviewers say

### Roller BJJ

[App page](https://appshunter.io/ios/app/roller-bjj/id6757169155)

**Features:** macOS Compatibility

**In-app purchases:** none


### Flow

[App page](https://appshunter.io/ios/app/flow-boxing-timer-and-recorder/id6768778758)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flow Pro | $4.99 | per month |
| Flow Pro | $29.99 | per year |


## Frequently asked questions

### Is Roller BJJ free?

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

### Is Flow free?

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

### Do Roller BJJ or Flow have ads?

Neither Roller BJJ nor Flow shows ads.

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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.*