# Olingua vs COSMOS

The clearest difference is in-app purchases: Olingua at none against COSMOS's 1. COSMOS's advantage is iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. COSMOS sells 1 one-off in-app purchase. Olingua asks for nothing beyond the download.

## The numbers

| Metric | Olingua | COSMOS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 112 MB | 27 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Nosikov](https://appshunter.io/developer/1813440971) | [Muhammed Celik](https://appshunter.io/developer/1885092121) |

## What reviewers say

### Olingua

[App page](https://appshunter.io/ios/app/olingua/id6745717092)

**Features:** macOS Compatibility

**In-app purchases:** none


### COSMOS

[App page](https://appshunter.io/ios/app/cosmos-solar-system-explorer/id6773522707)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| COSMOS Premium | $4.99 | one-time |


## Frequently asked questions

### Is Olingua free?

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

### Is COSMOS free?

COSMOS is free to download, with in-app purchases available.

### Do Olingua or COSMOS have ads?

Neither Olingua nor COSMOS 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.*