# Kotlin Tutorial vs Codalingo

The clearest difference is update cadence: Kotlin Tutorial at every 4 weeks against Codalingo's every 4 months. Kotlin Tutorial also leads on rating (4.7 vs 4.5) and iOS requirement (12.0 vs 15.6). Codalingo's advantage is ratings volume (24 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Kotlin Tutorial sells 1 in-app purchase, starting at $0.99 per month and Codalingo sells 10 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Kotlin Tutorial holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Codalingo has 24 ratings behind it against 3, so its average is the more settled of the two.

Kotlin Tutorial ships an update every 4 weeks, Codalingo every 4 months. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Kotlin Tutorial | Codalingo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/kotlin-tutorial/id6479207184/reviews)** | [4.5 (24 ratings)](https://appshunter.io/ios/app/codalingo-learn-dart-flutter/id6480119037/reviews) |
| Number of ratings | 3 | **24** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 29 MB | 113 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jayotsanaben Hadiya](https://appshunter.io/developer/1662594833) | [Ammar Khatib](https://appshunter.io/developer/1613990135) |

## What reviewers say

### Kotlin Tutorial

[App page](https://appshunter.io/ios/app/kotlin-tutorial/id6479207184)

Learn Kotlin programming with this app, covering basic to advanced concepts. It includes practice programs, interview questions, and an online compiler for hands-on learning. Ideal for beginners and professionals.

**Highlights:** Basic and advanced Kotlin concepts, Practice programs, Interview questions and answers, Online Kotlin compiler, 50+ Kotlin program examples

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro Access | $0.99 | per month |


### Codalingo

[App page](https://appshunter.io/ios/app/codalingo-learn-dart-flutter/id6480119037)

Master Dart and Flutter with interactive quizzes and diverse question formats. Track your progress on the leaderboard and review tricky concepts. Offers a dynamic learning experience for all skill levels.

**Highlights:** Interactive quizzes, Diverse question formats, Leaderboard, Progress review, Targeted practice, Customizable challenges

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $1.99 | per month |
| Yearly Premium with discount | $4.99 | per year |
| Premium Month | $6.99 | per month |
| Yearly Premium 30% off | $9.99 | per year |
| Yearly Premium (Offer & Trial) | $9.99 | per year |
| Yearly Premium | $17.99 | per year |
| 6 months Premium | $24.99 | per 6 months |
| Premium Year | $29.99 | per year |
| 5 Premium Categories | $4.99 | one-time |
| Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Kotlin Tutorial free?

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

### Is Codalingo free?

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

### Which has better reviews, Kotlin Tutorial or Codalingo?

Kotlin Tutorial is rated higher. Kotlin Tutorial averages 4.7 out of 5 from 3 ratings, while Codalingo averages 4.5 from 24 ratings.

### Do Kotlin Tutorial or Codalingo have ads?

Both Kotlin Tutorial and Codalingo show ads.

### Which is updated more often, Kotlin Tutorial or Codalingo?

Kotlin Tutorial ships an update every 4 weeks, and Codalingo every 4 months. Most recently, Kotlin Tutorial was updated on November 4, 2026 and Codalingo 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.*