# Twin Plug vs Fill Line Block

The clearest difference is in-app purchases: Twin Plug at none against Fill Line Block's 1. Twin Plug also leads on ads (none vs shown) and iOS requirement (11.0 vs 15.0). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Fill Line Block sells 1 one-off in-app purchase. Twin Plug asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Twin Plug against 5.0 for Fill Line Block. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Twin Plug | Fill Line Block |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/twin-plug/id6453073574/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/fill-line-block/id6755623527/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 72 MB | 109 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Babil Studios](https://appshunter.io/developer/947462912) | [Beijing Liuwei Technology Co.,Ltd](https://appshunter.io/developer/1855043656) |

## What reviewers say

### Twin Plug

[App page](https://appshunter.io/ios/app/twin-plug/id6453073574)

A brain-training puzzle game where players must strategically connect twin plugs to sockets to solve each level. It emphasizes spatial reasoning and careful planning to succeed.

**Highlights:** Connect twin plugs, Solve puzzle levels, Brain training, Spatial reasoning, Space management

**Features:** macOS Compatibility

**In-app purchases:** none


### Fill Line Block

[App page](https://appshunter.io/ios/app/fill-line-block/id6755623527)

Navigate a maze by drawing non-intersecting paths from colored grids to explore all spaces. Solve increasingly complex puzzles by strategically filling the maze.

**Highlights:** Maze exploration, Path drawing, Non-intersecting paths, Grid filling puzzles, Color-coded grids

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No Ads | $2.99 | one-time |


## Frequently asked questions

### Is Twin Plug free?

Twin Plug is free to download, with no in-app purchases.

### Is Fill Line Block free?

Fill Line Block is free to download, with in-app purchases available.

### Which has better reviews, Twin Plug or Fill Line Block?

Twin Plug and Fill Line Block are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Twin Plug or Fill Line Block have ads?

Fill Line Block shows ads; Twin Plug does not.

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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.*