# Learn Kotlin vs SystemDesignEdu

Learn Kotlin and SystemDesignEdu are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Learn Kotlin | SystemDesignEdu |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-kotlin-onepercent/id1560955321/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 28 MB | 30 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OnePercent](https://appshunter.io/developer/1536020418) | [NARENDRA KUMAR](https://appshunter.io/developer/1850742565) |

## What reviewers say

### Learn Kotlin

[App page](https://appshunter.io/ios/app/learn-kotlin-onepercent/id1560955321)

Master Kotlin programming from beginner to advanced concepts with interactive lessons, quizzes, and demo programs. Prepare for interviews with real Q&A. Available on all platforms for free.

**Highlights:** Comprehensive Kotlin lessons, Interview preparation Q&A, Interactive quizzes, Demo programs for visualization, Clear syntax explanations, Ad-free experience

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

**In-app purchases:** none


### SystemDesignEdu

[App page](https://appshunter.io/ios/app/systemdesignedu/id6754995509)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Learn Kotlin free?

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

### Is SystemDesignEdu free?

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

### Do Learn Kotlin or SystemDesignEdu have ads?

Neither Learn Kotlin nor SystemDesignEdu shows ads.

### Which is updated more often, Learn Kotlin or SystemDesignEdu?

Learn Kotlin ships an update every 3 months, and SystemDesignEdu every 3 months. Most recently, Learn Kotlin was updated on November 3, 2026 and SystemDesignEdu on October 30, 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.*