# 3Tris vs Line Gravity

The clearest difference is ads: 3Tris at none against Line Gravity's shown. 3Tris also leads on iOS requirement (12.0 vs 15.0). Line Gravity's advantage is update cadence (every 2 weeks vs every 21 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

3Tris ships an update every 21 months, Line Gravity every 2 weeks. Both last shipped on October 7, 2026.

## The numbers

| Metric | 3Tris | Line Gravity |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 21 months | **Every 2 weeks** |
| Size | 39 MB | 126 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Piero Amato](https://appshunter.io/developer/449186899) | [Kai Lun Cheung](https://appshunter.io/developer/1875847422) |

## What reviewers say

### 3Tris

[App page](https://appshunter.io/ios/app/3tris/id973539972)

**Features:** macOS Compatibility

**In-app purchases:** none


### Line Gravity

[App page](https://appshunter.io/ios/app/line-gravity/id6770451877)

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

**In-app purchases:** none


## Frequently asked questions

### Is 3Tris free?

3Tris is free to download, with no in-app purchases.

### Is Line Gravity free?

Line Gravity is free to download, with no in-app purchases.

### Do 3Tris or Line Gravity have ads?

Line Gravity shows ads; 3Tris does not.

### Which is updated more often, 3Tris or Line Gravity?

3Tris ships an update every 21 months, and Line Gravity every 2 weeks. Most recently, 3Tris was updated on October 7, 2026 and Line Gravity 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.*