# Nudge Learning App vs Stack

The clearest difference is in-app purchases: Nudge Learning App at none against Stack's 2. Nudge Learning App also leads on iOS requirement (13.0 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. Stack sells 2 in-app purchases, starting at $14.99 per month. Nudge Learning App asks for nothing beyond the download.

## The numbers

| Metric | Nudge Learning App | Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | — |
| Size | 58 MB | 12 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Trade Academy LLC](https://appshunter.io/developer/1647233586) | [Stack Apps](https://appshunter.io/developer/1877953473) |

## What reviewers say

### Nudge Learning App

[App page](https://appshunter.io/ios/app/nudge-learning-app/id6443568291)

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack

[App page](https://appshunter.io/ios/app/stack-learn-and-investing-coach/id6759451438)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro | $14.99 | per month |
| Stack Pro | $89.99 | per year |


## Frequently asked questions

### Is Nudge Learning App free?

Nudge Learning App is free to download, with no in-app purchases.

### Is Stack free?

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

### Do Nudge Learning App or Stack have ads?

Both Nudge Learning App and Stack show 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.*