# Cross Do Ku vs Logic Bridge

The clearest difference is ads: Logic Bridge at none against Cross Do Ku's shown. Cross Do Ku's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (11.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Cross Do Ku sells 6 one-off in-app purchases and Logic Bridge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Cross Do Ku ships an update every 3 weeks, Logic Bridge every 2 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Cross Do Ku | Logic Bridge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (92 ratings)](https://appshunter.io/ios/app/cross-do-ku/id1457850088/reviews)** | — |
| Number of ratings | **92** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 129 MB | 14 MB |
| Requires iOS | **11.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [lee seung joo](https://appshunter.io/developer/1446223476) | [Gerhard Lentschik](https://appshunter.io/developer/629988041) |

## What reviewers say

### Cross Do Ku

[App page](https://appshunter.io/ios/app/cross-do-ku/id1457850088)

A new line drawing puzzle game where you fill grids by drawing horizontal or vertical lines. It offers 8 distinct modes and over 1200 challenging levels to test your logic and spatial reasoning skills.

**Highlights:** Draw horizontal or vertical lines, Fill all grids, 8 game modes, 1200+ levels, New line drawing puzzle

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hint x 20 | $0.99 | one-time |
| Remove ads | $2.99 | one-time |
| 30 hints | $2.99 | one-time |
| Hint x 70 | $2.99 | one-time |
| 60 hints | $4.99 | one-time |
| Hint x 150 | $5.99 | one-time |


### Logic Bridge

[App page](https://appshunter.io/ios/app/logic-bridge/id1475479153)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Turn off advertising | $1.99 | one-time |


## Frequently asked questions

### Is Cross Do Ku free?

Cross Do Ku is free to download, with in-app purchases available.

### Is Logic Bridge free?

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

### Do Cross Do Ku or Logic Bridge have ads?

Cross Do Ku shows ads; Logic Bridge does not.

### Which is updated more often, Cross Do Ku or Logic Bridge?

Cross Do Ku ships an update every 3 weeks, and Logic Bridge every 2 months. Most recently, Cross Do Ku was updated on October 24, 2026 and Logic Bridge on October 7, 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.*