# ROLLER JIU vs Green studio

The clearest difference is update cadence: Green studio at every 6 weeks against ROLLER JIU's every 3 months. ROLLER JIU's advantage is iOS requirement (13.4 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ROLLER JIU ships an update every 3 months, Green studio every 6 weeks. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ROLLER JIU | Green studio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Size | 28 MB | 51 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fitbase](https://appshunter.io/developer/1530906929) | [Vasiliy Suvorov](https://appshunter.io/developer/1612668132) |

## What reviewers say

### ROLLER JIU

[App page](https://appshunter.io/ios/app/roller-jiu-jitsu/id6744891844)

**Features:** macOS Compatibility

**In-app purchases:** none


### Green studio

[App page](https://appshunter.io/ios/app/green-studio/id6752023967)

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

**In-app purchases:** none


## Frequently asked questions

### Is ROLLER JIU free?

ROLLER JIU is free to download, with no in-app purchases.

### Is Green studio free?

Green studio is free to download, with no in-app purchases.

### Do ROLLER JIU or Green studio have ads?

Neither ROLLER JIU nor Green studio shows ads.

### Which is updated more often, ROLLER JIU or Green studio?

ROLLER JIU ships an update every 3 months, and Green studio every 6 weeks. Most recently, ROLLER JIU was updated on October 7, 2026 and Green studio on October 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.*