# Kotlin Tutorial vs Wibblo

The clearest difference is ads: Wibblo at none against Kotlin Tutorial's shown. Wibblo also leads on update cadence (every 10 days vs every 4 weeks). Kotlin Tutorial's advantage is iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Kotlin Tutorial sells 1 in-app purchase, starting at $0.99 per month and Wibblo sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Kotlin Tutorial ships an update every 4 weeks, Wibblo every 10 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Kotlin Tutorial | Wibblo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (3 ratings)](https://appshunter.io/ios/app/kotlin-tutorial/id6479207184/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | — |
| Size | 29 MB | 64 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jayotsanaben Hadiya](https://appshunter.io/developer/1662594833) | [FIRAT ADAR DAL](https://appshunter.io/developer/6803532327) |

## 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 |


### Wibblo

[App page](https://appshunter.io/ios/app/wibblo-bedtime-stories/id6803532325)

**Features:** Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wibblo Premium | $3.99 | per month |
| Wibblo Premium | $9.99 | per 3 months |


## Frequently asked questions

### Is Kotlin Tutorial free?

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

### Is Wibblo free?

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

### Do Kotlin Tutorial or Wibblo have ads?

Kotlin Tutorial shows ads; Wibblo does not.

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

Kotlin Tutorial ships an update every 4 weeks, and Wibblo every 10 days. Most recently, Kotlin Tutorial was updated on November 4, 2026 and Wibblo on October 31, 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.*