# 倍数plane vs Korean History Bite

The clearest difference is in-app purchases: 倍数plane at none against Korean History Bite's 1. 倍数plane also leads on ads (none vs shown). Korean History Bite's advantage is update cadence (every 11 days vs every 6 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Korean History Bite sells 1 one-off in-app purchase. 倍数plane asks for nothing beyond the download.

倍数plane ships an update every 6 months, Korean History Bite every 11 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 倍数plane | Korean History Bite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 11 days** |
| Size | 58 MB | 64 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) | [Wearablock Incorporated](https://appshunter.io/developer/1860170307) |

## What reviewers say

### 倍数plane

[App page](https://appshunter.io/ios/app/plane/id6502582678)

**Features:** macOS Compatibility

**In-app purchases:** none


### Korean History Bite

[App page](https://appshunter.io/ios/app/korean-history-bite/id6757953633)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $3.99 | one-time |


## Frequently asked questions

### Is 倍数plane free?

倍数plane is free to download, with no in-app purchases.

### Is Korean History Bite free?

Korean History Bite is free to download, with in-app purchases available.

### Do 倍数plane or Korean History Bite have ads?

Korean History Bite shows ads; 倍数plane does not.

### Which is updated more often, 倍数plane or Korean History Bite?

倍数plane ships an update every 6 months, and Korean History Bite every 11 days. Most recently, 倍数plane was updated on October 27, 2026 and Korean History Bite on October 25, 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.*