# Computational Complexity vs Enki

The clearest difference is in-app purchases: Computational Complexity at none against Enki's 9. Computational Complexity also leads on review sentiment (100% vs 74%) and rating (5.0 vs 4.8). Enki's advantage is ratings volume (1.1K vs 4) and update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Enki sells 9 in-app purchases, starting at $7.99 per month. Computational Complexity asks for nothing beyond the download.

Computational Complexity holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Enki has 1.1K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Computational Complexity's written reviews are positive against 74% of Enki's.

Computational Complexity ships an update every 3 months, Enki monthly. The most recent releases landed on June 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Computational Complexity | Enki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/computational-complexity/id788314470/reviews)** | [4.8 (1.1K ratings)](https://appshunter.io/ios/app/enki-learn-codingprogramming/id993753145/reviews) |
| Number of ratings | 4 | **1.1K** |
| Positive reviews | **100.0% of reviews** | 74.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 18 MB | 42 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Patrick Madden](https://appshunter.io/developer/857040151) | [ENKI LABS Inc.](https://appshunter.io/developer/993753144) |

## What reviewers say

### Computational Complexity

[App page](https://appshunter.io/ios/app/computational-complexity/id788314470)

Explore fundamental concepts of computational complexity with interactive graphs and live sorting algorithm demonstrations. Developed by academics, this app offers a fun and educational way to visualize algorithmic growth and efficiency.

**Highlights:** Interactive Big-O function graphs, Live sorting algorithm demonstrations, Visualizes algorithmic growth, Source code available on Github, Educational tool for computer science

**Features:** macOS Compatibility

**In-app purchases:** none


### Enki

[App page](https://appshunter.io/ios/app/enki-learn-codingprogramming/id993753145)

This AI-powered coach helps you learn coding, data skills, and productivity tools. It offers personalized lessons, code review, and interactive exercises to build your expertise. Engage with a community, track your progress, and receive career advice to advance your technical skills.

**Highlights:** AI-powered skills coach, Personalized learning paths, Code review and feedback, Interactive coding playground, Spaced repetition revision workouts, Community learning and collaboration, 10,000+ lessons in 30+ skills

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EnkiPro Monthly | $7.99 | per month |
| Learn Mode - Monthly | $7.99 | per month |
| Learn Mode: Monthly | $11.99 | per month |
| EnkiPro 6 Months | $35.99 | per 6 months |
| Learn Mode - 6 Months | $35.99 | per 6 months |
| Learn Mode - Yearly | $38.99 | per year |
| EnkiPro | $47.99 | per year |
| Learn Mode: 6 Months | $49.99 | per 6 months |
| Learn Mode: Yearly | $59.99 | per year |

**What reviewers like**

- 👍 Great app for learning programming
- 🚀 Bite-sized, efficient lessons
- 💡 Helpful AI assistant
- 🤓 Covers wide range of topics
- 👌 Easy to use and navigate

**What reviewers complain about**

- 🐛 Occasional crashes and bugs
- 💰 Paywall for full access
- 📱 Lacks landscape mode for tablets
- 🤔 Confusing or poorly explained lessons
- 🕰️ Slow code execution

**Reported bugs**

- Login issues and lost accounts
- Incorrect answers marked as correct
- Freezing or crashing on certain lessons
- Inability to unlock content as expected

**Requested features**

- Certificates or progress tracking
- More advanced content and exercises
- Sync across multiple devices
- Customizable UI and color schemes
- Better organization of content


## Frequently asked questions

### Is Computational Complexity free?

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

### Is Enki free?

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

### Which has better reviews, Computational Complexity or Enki?

Computational Complexity is rated higher. Computational Complexity averages 5.0 out of 5 from 4 ratings, while Enki averages 4.8 from 1.1K ratings.

### Do Computational Complexity or Enki have ads?

Neither Computational Complexity nor Enki shows ads.

### Which is updated more often, Computational Complexity or Enki?

Computational Complexity ships an update every 3 months, and Enki monthly. Most recently, Computational Complexity was updated on June 5, 2026 and Enki on September 24, 2026.

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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.*