# Octopus vs Gradus App

The clearest difference is in-app purchases: Gradus App at none against Octopus's 4. Gradus App also leads on ads (none vs shown). Octopus's advantage is iOS requirement (13.6 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Octopus sells 4 in-app purchases, starting at $9.99 per month. Gradus App asks for nothing beyond the download.

## The numbers

| Metric | Octopus | Gradus App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (5 ratings)](https://appshunter.io/ios/app/octopus-learn-programming/id1565140788/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 71.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | Free with in-app purchases | — |
| Size | 107 MB | 31 MB |
| Requires iOS | **13.6** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPod, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [Alaa CHERBIB](https://appshunter.io/developer/1097070945) | [Mustafa Firat Degirmencioglu](https://appshunter.io/developer/6777430470) |

## What reviewers say

### Octopus

[App page](https://appshunter.io/ios/app/octopus-learn-programming/id1565140788)

Learn to code in popular languages like Python, Java, Swift, and JavaScript, plus web development with HTML and CSS. Offers detailed tutorials and interactive exercises for all skill levels. Join a community of learners to advance your programming journey.

**Highlights:** Learn Python, Java, Swift, JavaScript, Web development with HTML and CSS, Detailed tutorials, Interactive coding exercises, Community collaboration, Courses for all levels

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Learn programming - 1 Month | $9.99 | per month |
| Learn programming - 3 Months | $24.99 | per 3 months |
| Learn programming - 1 Year | $84.99 | per year |
| Learn programming - No limits | $44.99 | one-time |


### Gradus App

[App page](https://appshunter.io/ios/app/gradus-app/id6777430468)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Octopus free?

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

### Is Gradus App free?

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

### Do Octopus or Gradus App have ads?

Octopus shows ads; Gradus App 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.*