# ModelMind vs Prompt engineering

The clearest difference is in-app purchases: Prompt engineering at none against ModelMind's 2. Prompt engineering also leads on iOS requirement (13.0 vs 18.0). ModelMind's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ModelMind sells 2 in-app purchases, starting at $9.99 per month. Prompt engineering asks for nothing beyond the download.

## The numbers

| Metric | ModelMind | Prompt engineering |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | — |
| Size | 54 MB | 29 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CHAEEUN HAN](https://appshunter.io/developer/1889050200) | [Samir Patel](https://appshunter.io/developer/1793485427) |

## What reviewers say

### ModelMind

[App page](https://appshunter.io/ios/app/modelmind/id6761348536)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ModelMind Premium, Monthly | $9.99 | per month |
| ModelMind Premium, Yearly | $79.99 | per year |


### Prompt engineering

[App page](https://appshunter.io/ios/app/prompt-engineering-ai-guide/id6762752388)

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

**In-app purchases:** none


## Frequently asked questions

### Is ModelMind free?

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

### Is Prompt engineering free?

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

### Do ModelMind or Prompt engineering have ads?

Prompt engineering shows ads; ModelMind does not.

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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.*