# YYLaser vs Contrigraph

The clearest difference is in-app purchases: YYLaser at none against Contrigraph's 1. YYLaser also leads on iOS requirement (13.0 vs 17.5). Contrigraph's advantage is update cadence (every 6 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Contrigraph sells 1 one-off in-app purchase. YYLaser asks for nothing beyond the download.

YYLaser ships an update every 2 months, Contrigraph every 6 days. The most recent releases landed on October 18, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | YYLaser | Contrigraph |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 47 MB | 10 MB |
| Requires iOS | **13.0** | 17.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Youyoule Technology Co., Ltd.](https://appshunter.io/developer/1754888044) | [Hajime Nakamura](https://appshunter.io/developer/1011217140) |

## What reviewers say

### YYLaser

[App page](https://appshunter.io/ios/app/yylaser/id6569226700)

**In-app purchases:** none


### Contrigraph

[App page](https://appshunter.io/ios/app/contrigraph-habit-tracker/id6612007595)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is YYLaser free?

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

### Is Contrigraph free?

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

### Do YYLaser or Contrigraph have ads?

Neither YYLaser nor Contrigraph shows ads.

### Which is updated more often, YYLaser or Contrigraph?

YYLaser ships an update every 2 months, and Contrigraph every 6 days. Most recently, YYLaser was updated on October 18, 2026 and Contrigraph on October 6, 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.*