# IMSSA vs OSYPA

IMSSA and OSYPA are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | IMSSA | OSYPA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Size | 9 MB | 39 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [IMSSA SA](https://appshunter.io/developer/1621012889) | [Geomatic Technologies](https://appshunter.io/developer/546285590) |

## What reviewers say

### IMSSA

[App page](https://appshunter.io/ios/app/imssa/id1621012887)

**Features:** macOS Compatibility

**In-app purchases:** none


### OSYPA

[App page](https://appshunter.io/ios/app/osypa/id6800666171)

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

**In-app purchases:** none


## Frequently asked questions

### Is IMSSA free?

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

### Is OSYPA free?

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

### Do IMSSA or OSYPA have ads?

Neither IMSSA nor OSYPA shows ads.

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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.*