# Roller BJJ vs Boxing Chrono

The clearest difference is in-app purchases: Roller BJJ at none against Boxing Chrono's 1. Roller BJJ also leads on update cadence (monthly vs every 4 months) and iOS requirement (17.0 vs 26.2). On price, ads and device support there is nothing between them.

Both are free to download. Boxing Chrono sells 1 one-off in-app purchase. Roller BJJ asks for nothing beyond the download.

Roller BJJ ships an update monthly, Boxing Chrono every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Roller BJJ | Boxing Chrono |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/roller-bjj/id6757169155/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 19 MB | 15 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Dornan](https://appshunter.io/developer/1865035474) | [Ioannis Kyritsis](https://appshunter.io/developer/1854004015) |

## What reviewers say

### Roller BJJ

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Boxing Chrono

[App page](https://appshunter.io/ios/app/boxing-chrono/id6758235341)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Boxing Chrono | $0.99 | one-time |


## Frequently asked questions

### Is Roller BJJ free?

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

### Is Boxing Chrono free?

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

### Do Roller BJJ or Boxing Chrono have ads?

Neither Roller BJJ nor Boxing Chrono shows ads.

### Which is updated more often, Roller BJJ or Boxing Chrono?

Roller BJJ ships an update monthly, and Boxing Chrono every 4 months. Most recently, Roller BJJ was updated on October 24, 2026 and Boxing Chrono on October 25, 2026.

---

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