# Probability for Computing vs Nabla

The clearest difference is in-app purchases: Probability for Computing at none against Nabla's 2. Probability for Computing also leads on device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Nabla sells 2 in-app purchases, starting at $12.99 per month. Probability for Computing asks for nothing beyond the download.

## The numbers

| Metric | Probability for Computing | Nabla |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Size | 38 MB | 87 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AFTW LLC](https://appshunter.io/developer/1886356149) | [Muhammed Hamza Cakmak](https://appshunter.io/developer/1884048817) |

## What reviewers say

### Probability for Computing

[App page](https://appshunter.io/ios/app/probability-for-computing/id6774024034)

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

**In-app purchases:** none


### Nabla

[App page](https://appshunter.io/ios/app/nabla-college-math/id6796978565)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nabla Pro Monthly | $12.99 | per month |
| Nabla Pro Annual | $69.99 | per year |


## Frequently asked questions

### Is Probability for Computing free?

Probability for Computing is free to download, with no in-app purchases.

### Is Nabla free?

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

### Do Probability for Computing or Nabla have ads?

Neither Probability for Computing nor Nabla 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.*