# OWL VIS vs ContarinApp

The clearest difference is update cadence: ContarinApp at every 2 months against OWL VIS's every 33 months. 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.

OWL VIS ships an update every 33 months, ContarinApp every 2 months. The most recent releases landed on May 17, 2026 and August 25, 2026 respectively.

## The numbers

| Metric | OWL VIS | ContarinApp |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 months** |
| Size | 12 MB | 34 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SICEP S.r.l.](https://appshunter.io/developer/1017353302) | [Contarina SpA](https://appshunter.io/developer/1799672507) |

## What reviewers say

### OWL VIS

[App page](https://appshunter.io/ios/app/owl-vis/id1360230088)

**Features:** macOS Compatibility

**In-app purchases:** none


### ContarinApp

[App page](https://appshunter.io/ios/app/contarinapp/id6742740631)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OWL VIS free?

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

### Is ContarinApp free?

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

### Do OWL VIS or ContarinApp have ads?

Neither OWL VIS nor ContarinApp shows ads.

### Which is updated more often, OWL VIS or ContarinApp?

OWL VIS ships an update every 33 months, and ContarinApp every 2 months. Most recently, OWL VIS was updated on May 17, 2026 and ContarinApp on August 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*