# Learn Kotlin vs GoReviewMaster

The clearest difference is price: Learn Kotlin at Free against GoReviewMaster's $1.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Learn Kotlin is free to download; GoReviewMaster costs $1.99 up front. Learn Kotlin sells 4 in-app purchases, starting at $4.99 per 7 days and GoReviewMaster sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Learn Kotlin ships an update every 3 weeks, GoReviewMaster fortnightly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Learn Kotlin | GoReviewMaster |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/goreviewmaster/id6747128239/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 71 MB | 52 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEHMET CANKER (TR)](https://appshunter.io/developer/1565350155) | [Seiya.k](https://appshunter.io/developer/383021944) |

## What reviewers say

### Learn Kotlin

[App page](https://appshunter.io/ios/app/learn-kotlin-jvm-and-compose/id6739499371)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $4.99 | per 7 days |
| Monthly Subscription | $6.99 | per month |
| Yearly Subscription | $24.99 | per year |
| Lifetime Subscription | $59.99 | one-time |


### GoReviewMaster

[App page](https://appshunter.io/ios/app/goreviewmaster/id6747128239)

Enhance your Go code review expertise with practical quizzes covering linters, concurrency, and architecture. This app offers over 500 real-world questions across 9 difficulty levels to refine your skills and eliminate subjectivity in code reviews.

**Highlights:** Over 500 real-world Go code review questions, 9 learning levels from beginner to microservice design, Practical multiple-choice questions with code snippets, Review mode for incorrect answers, Automatic language switching (Japanese/English), ChatGPT integration for concept understanding

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GoReviewMaster Pro (Monthly) | $2.99 | per month |
| GoReviewMaster Pro (Yearly) | $17.99 | per year |


## Frequently asked questions

### Is Learn Kotlin free?

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

### Is GoReviewMaster free?

GoReviewMaster costs $1.99, and also offers in-app purchases.

### Do Learn Kotlin or GoReviewMaster have ads?

Both Learn Kotlin and GoReviewMaster show ads.

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

Learn Kotlin ships an update every 3 weeks, and GoReviewMaster fortnightly. Most recently, Learn Kotlin was updated on October 30, 2026 and GoReviewMaster 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.*