# KABUUUN vs Order Book Trainer

The clearest difference is ads: KABUUUN at none against Order Book Trainer's shown. KABUUUN also leads on update cadence (every 5 days vs fortnightly). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. KABUUUN sells 2 in-app purchases, starting at $4.99 per month and Order Book Trainer sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

KABUUUN ships an update every 5 days, Order Book Trainer fortnightly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | KABUUUN | Order Book Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/order-book-trainer-level-2/id6785885996/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Fortnightly |
| Size | 41 MB | 79 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [nakagawa kenta](https://appshunter.io/developer/6785565981) | [Syncly Applications](https://appshunter.io/developer/1437712077) |

## What reviewers say

### KABUUUN

[App page](https://appshunter.io/ios/app/kabuuun/id6785565978)

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KABUUUN Prime | $4.99 | per month |
| KABUUUN Prime (Yearly) | $49.99 | per year |


### Order Book Trainer

[App page](https://appshunter.io/ios/app/order-book-trainer-level-2/id6785885996)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ad-Free Pro – Monthly | $1.99 | per month |
| Ad-Free Pro – Yearly | $15.99 | per year |


## Frequently asked questions

### Is KABUUUN free?

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

### Is Order Book Trainer free?

Order Book Trainer is free to download, with in-app purchases available.

### Do KABUUUN or Order Book Trainer have ads?

Order Book Trainer shows ads; KABUUUN does not.

### Which is updated more often, KABUUUN or Order Book Trainer?

KABUUUN ships an update every 5 days, and Order Book Trainer fortnightly. Most recently, KABUUUN was updated on November 1, 2026 and Order Book Trainer on October 31, 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.*