# COSYS BaseApp vs Simple Protocol

The clearest difference is iOS requirement: Simple Protocol at 13.0 against COSYS BaseApp's 15.5. 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.

## The numbers

| Metric | COSYS BaseApp | Simple Protocol |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Size | 121 MB | 45 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cosys Ident GmbH](https://appshunter.io/developer/1339758724) | [enleso UG (haftungsbeschränkt)](https://appshunter.io/developer/1863733126) |

## What reviewers say

### COSYS BaseApp

[App page](https://appshunter.io/ios/app/cosys-baseapp/id1590122203)

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

**In-app purchases:** none


### Simple Protocol

[App page](https://appshunter.io/ios/app/simple-protocol/id6756927976)

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

**In-app purchases:** none


## Frequently asked questions

### Is COSYS BaseApp free?

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

### Is Simple Protocol free?

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

### Do COSYS BaseApp or Simple Protocol have ads?

Neither COSYS BaseApp nor Simple Protocol 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.*