# Link Lines vs Brain Lines

The clearest difference is in-app purchases: Link Lines at none against Brain Lines's 1. Link Lines also leads on ads (none vs shown) and iOS requirement (7.0 vs 13.0). Brain Lines's advantage is update cadence (every 5 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Brain Lines sells 1 one-off in-app purchase. Link Lines asks for nothing beyond the download.

Link Lines ships an update every 2 months, Brain Lines every 5 days. The most recent releases landed on October 20, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Link Lines | Brain Lines |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 120 MB | 145 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nam Vo Hoai](https://appshunter.io/developer/1163922615) | [LU ENHANCE Inc.](https://appshunter.io/developer/1594374063) |

## What reviewers say

### Link Lines

[App page](https://appshunter.io/ios/app/link-lines-classic-pipe-puzzle/id1244248331)

Connect water pipes by rotating them to create a continuous flow. This free puzzle game offers a brain-training experience with levels ranging from easy to expert.

**Highlights:** Pipe connection puzzles, Water flow simulation, Brain training challenges, Multiple difficulty levels, Addictive gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Brain Lines

[App page](https://appshunter.io/ios/app/brain-lines-train-your-brain/id1641032936)

**In-app purchases (1)**

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


## Frequently asked questions

### Is Link Lines free?

Link Lines is free to download, with no in-app purchases.

### Is Brain Lines free?

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

### Do Link Lines or Brain Lines have ads?

Brain Lines shows ads; Link Lines does not.

### Which is updated more often, Link Lines or Brain Lines?

Link Lines ships an update every 2 months, and Brain Lines every 5 days. Most recently, Link Lines was updated on October 20, 2026 and Brain Lines on October 27, 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.*