# RollJournal vs Kaizen Timer

The clearest difference is in-app purchases: Kaizen Timer at none against RollJournal's 2. Kaizen Timer also leads on update cadence (every 3 days vs every 3 weeks). RollJournal's advantage is iOS requirement (14.0 vs 17.6). On price, 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. Kaizen Timer asks for nothing beyond the download.

RollJournal ships an update every 3 weeks, Kaizen Timer every 3 days. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | RollJournal | Kaizen Timer |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Size | 69 MB | 3 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mako Technology Labs](https://appshunter.io/developer/1832176903) | [Stefan Dasic](https://appshunter.io/developer/1861310477) |

## What reviewers say

### 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 |


### Kaizen Timer

[App page](https://appshunter.io/ios/app/kaizen-timer/id6758769895)

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

**In-app purchases:** none


## Frequently asked questions

### Is RollJournal free?

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

### Is Kaizen Timer free?

Kaizen Timer is free to download, with no in-app purchases.

### Do RollJournal or Kaizen Timer have ads?

Neither RollJournal nor Kaizen Timer shows ads.

### Which is updated more often, RollJournal or Kaizen Timer?

RollJournal ships an update every 3 weeks, and Kaizen Timer every 3 days. Most recently, RollJournal was updated on September 9, 2026 and Kaizen Timer on September 14, 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.*