# Chi Combat System vs RollJournal

The clearest difference is in-app purchases: Chi Combat System at none against RollJournal's 2. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RollJournal sells 2 in-app purchases, starting at $5.99 per month. Chi Combat System asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Chi Combat System | RollJournal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/rolljournal/id6751984288/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Freemium |
| Size | 389 MB | 69 MB |
| Requires iOS | 15.1 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tym Tosin](https://appshunter.io/developer/1822770422) | [Mako Technology Labs](https://appshunter.io/developer/1832176903) |

## What reviewers say

### Chi Combat System

[App page](https://appshunter.io/ios/app/chi-combat-system/id6747757528)

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

**In-app purchases:** none


### RollJournal

[App page](https://appshunter.io/ios/app/rolljournal/id6751984288)

Log BJJ training sessions quickly, track progress, and gain AI-powered insights to improve your game. This app helps practitioners of all levels remember techniques, see growth, and train more effectively.

**Highlights:** Quick session logging, AI-powered insights, Progress tracking, Goal setting, Technique library, Apple Health integration

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RollJournal Premium (Monthly) | $5.99 | per month |
| RollJournal Premium (Yearly) | $59.99 | per year |


## Frequently asked questions

### Is Chi Combat System free?

Chi Combat System is free to download, with no in-app purchases.

### Is RollJournal free?

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

### Do Chi Combat System or RollJournal have ads?

Neither Chi Combat System nor RollJournal shows ads.

### Which is updated more often, Chi Combat System or RollJournal?

Chi Combat System ships an update every 3 weeks, and RollJournal every 3 weeks. Most recently, Chi Combat System was updated on September 14, 2026 and RollJournal on September 9, 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.*