# Ontrasys Lite vs TH View

The clearest difference is update cadence: TH View at every 3 weeks against Ontrasys Lite's every 4 months. TH View also leads on iOS requirement (11.0 vs 13.6). On price, ads, 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.

Ontrasys Lite ships an update every 4 months, TH View every 3 weeks. The most recent releases landed on July 17, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Ontrasys Lite | TH View |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Size | 13 MB | 13 MB |
| Requires iOS | 13.6 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TOPPAN PRINTING CO.,LTD.](https://appshunter.io/developer/373909233) | [SHINYEI TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1460229492) |

## What reviewers say

### Ontrasys Lite

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

**Features:** macOS Compatibility

**In-app purchases:** none


### TH View

[App page](https://appshunter.io/ios/app/th-view/id1508960620)

**In-app purchases:** none


## Frequently asked questions

### Is Ontrasys Lite free?

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

### Is TH View free?

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

### Do Ontrasys Lite or TH View have ads?

Neither Ontrasys Lite nor TH View shows ads.

### Which is updated more often, Ontrasys Lite or TH View?

Ontrasys Lite ships an update every 4 months, and TH View every 3 weeks. Most recently, Ontrasys Lite was updated on July 17, 2026 and TH View on September 16, 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.*