# Contrapose vs STEM

The clearest difference is in-app purchases: Contrapose at none against STEM's 6. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. STEM sells 6 in-app purchases, starting at $7.99 per month. Contrapose asks for nothing beyond the download.

## The numbers

| Metric | Contrapose | STEM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Size | 27 MB | 3 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Aaron Jones](https://appshunter.io/developer/1793476564) | [CEM OZAN DUZENCI](https://appshunter.io/developer/6782101402) |

## What reviewers say

### Contrapose

[App page](https://appshunter.io/ios/app/contrapose/id6753694877)

**Features:** macOS Compatibility

**In-app purchases:** none


### STEM

[App page](https://appshunter.io/ios/app/stem-x-vocal-isolation/id6791375004)

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Starter Monthly | $7.99 | per month |
| Basic Plan | $12.99 | per month |
| Pro Plan | $24.99 | per month |
| Basic Plan | $99.99 | per year |
| Pro Plan | $199.99 | per year |
| Energy Token | $4.99 | one-time |


## Frequently asked questions

### Is Contrapose free?

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

### Is STEM free?

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

### Do Contrapose or STEM have ads?

Neither Contrapose nor STEM 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.*