# Octopus vs Klango

The clearest difference is in-app purchases: Klango at none against Octopus's 4. Klango also leads on ads (none vs shown) and review sentiment (100% vs 71%). Octopus's advantage is iOS requirement (13.6 vs 18.0). 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. Klango asks for nothing beyond the download.

## The numbers

| Metric | Octopus | Klango |
| --- | --- | --- |
| 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 | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | — |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 107 MB | 2 MB |
| Requires iOS | **13.6** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alaa CHERBIB](https://appshunter.io/developer/1097070945) | [Cem Hasanbeyoglu](https://appshunter.io/developer/6776387238) |

## 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 |


### Klango

[App page](https://appshunter.io/ios/app/klango/id6776387236)

This flashcard app offers a one-time purchase for lifetime access, with no subscriptions, ads, or accounts required. It supports importing existing decks and features five study modes with smart language detection for over 25 languages.

**Highlights:** One-time purchase, yours forever, Import existing .apkg and .colpkg decks, Spaced repetition (SM-2 algorithm), Five focused study modes, Smart part-of-speech detection, Offline functionality, Supports 25+ languages

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

**In-app purchases:** none


## Frequently asked questions

### Is Octopus free?

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

### Is Klango free?

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

### Do Octopus or Klango have ads?

Octopus shows ads; Klango 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.*