# Learn Kotlin | KotlinPad vs Learn CSS

The clearest difference is price: Learn CSS at Free against Learn Kotlin | KotlinPad's $2.99. Learn CSS also leads on rating (5.0 vs 1.0) and update cadence (every 2 months vs every 12 months). Learn Kotlin | KotlinPad's advantage is ads (none vs shown). On ratings volume, in-app purchases, device support and iOS requirement there is nothing between them.

Learn CSS is free to download; Learn Kotlin | KotlinPad costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Learn CSS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Learn Kotlin | KotlinPad ships an update every 12 months, Learn CSS every 2 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Learn Kotlin | KotlinPad | Learn CSS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/learn-kotlin-kotlinpad/id6754602613/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-css-styling-and-flexbox/id6757161168/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | Paid | **Free** |
| Size | 73 MB | 116 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Muhammad Umair](https://appshunter.io/developer/1696049320) | [Nagy Solaiman](https://appshunter.io/developer/6809016106) |

## What reviewers say

### Learn Kotlin | KotlinPad

[App page](https://appshunter.io/ios/app/learn-kotlin-kotlinpad/id6754602613)

Master the Kotlin programming language with interactive lessons, progress tracking, and quizzes. This app offers a structured learning path for beginners and experienced developers alike, with a clean interface and integrated help resources.

**Highlights:** Interactive lessons, Progress tracking, Search functionality, Help Center integration, Quizzes and challenges, Personalized learning path, Visual progress indicators

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

**In-app purchases:** none


### Learn CSS

[App page](https://appshunter.io/ios/app/learn-css-styling-and-flexbox/id6757161168)

Master Cascading Style Sheets with interactive lessons, a real-time code editor, and gamified challenges. Learn fundamentals, responsive design, and modern layouts to build professional web designs.

**Highlights:** Interactive CSS tutorials, Real-time code editor, Daily coding tips and quizzes, Gamified learning with XP and achievements, Professional UI mockup assets, Offline lesson access

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn Kotlin | KotlinPad free?

Learn Kotlin | KotlinPad costs $2.99, with no in-app purchases.

### Is Learn CSS free?

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

### Which has better reviews, Learn Kotlin | KotlinPad or Learn CSS?

Learn CSS is rated higher. Learn Kotlin | KotlinPad averages 1.0 out of 5 from 1 ratings, while Learn CSS averages 5.0 from 1 ratings.

### Do Learn Kotlin | KotlinPad or Learn CSS have ads?

Learn CSS shows ads; Learn Kotlin | KotlinPad does not.

### Which is updated more often, Learn Kotlin | KotlinPad or Learn CSS?

Learn Kotlin | KotlinPad ships an update every 12 months, and Learn CSS every 2 months. Most recently, Learn Kotlin | KotlinPad was updated on October 24, 2026 and Learn CSS on October 12, 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.*