# Stemzel vs STEM

The clearest difference is iOS requirement: STEM at 16.4 against Stemzel's 26.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Stemzel sells 4 one-off in-app purchases and STEM sells 5 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Stemzel | STEM |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 290 MB | 3 MB |
| Requires iOS | 26.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Mahija Kottapalli](https://appshunter.io/developer/6789668515) | [CEM OZAN DUZENCI](https://appshunter.io/developer/6782101402) |

## What reviewers say

### Stemzel

[App page](https://appshunter.io/ios/app/stemzel/id6789668513)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $0.99 | one-time |
| Medium Tip | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Stemzel Unlock | $7.99 | one-time |


### STEM

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

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Plan | $9.99 | per month |
| Pro Plan | $19.99 | per month |
| Basic Plan | $99.99 | per year |
| Pro Plan | $199.99 | per year |
| Energy Token | $4.99 | one-time |


## Frequently asked questions

### Is Stemzel free?

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

### Is STEM free?

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

### Do Stemzel or STEM have ads?

Neither Stemzel 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.*