# POU LITE vs Ontrasys Lite

The clearest difference is device support: Ontrasys Lite at 3 against POU LITE's 1. Ontrasys Lite also leads on iOS requirement (13.6 vs 18.6). On price, update cadence, ads and in-app purchases there is nothing between them.

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

POU LITE ships an update every 2 months, Ontrasys Lite every 4 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | POU LITE | Ontrasys Lite |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 8 MB | 13 MB |
| Requires iOS | 18.6 | **13.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [株式会社POU](https://appshunter.io/developer/1811515109) | [TOPPAN PRINTING CO.,LTD.](https://appshunter.io/developer/373909233) |

## What reviewers say

### POU LITE

[App page](https://appshunter.io/ios/app/pou-lite/id949317597)

**Features:** Vision Pro support

**In-app purchases:** none


### Ontrasys Lite

[App page](https://appshunter.io/ios/app/ontrasys-lite/id1297899857)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is POU LITE free?

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

### Is Ontrasys Lite free?

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

### Do POU LITE or Ontrasys Lite have ads?

Neither POU LITE nor Ontrasys Lite shows ads.

### Which is updated more often, POU LITE or Ontrasys Lite?

POU LITE ships an update every 2 months, and Ontrasys Lite every 4 months. Most recently, POU LITE was updated on November 6, 2026 and Ontrasys Lite on November 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.*