# Bubblegum vs K

The clearest difference is in-app purchases: K at none against Bubblegum's 10. K also leads on device support (3 vs 1). Bubblegum's advantage is ads (none vs shown) and update cadence (daily vs every 8 days). On price, rating and iOS requirement there is nothing between them.

Both are free to download. Bubblegum sells 10 in-app purchases, starting at $5.99 per 7 days. K asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.9 for Bubblegum against 5.0 for K. That said, the two scores are not equally well evidenced: Bubblegum has 168 ratings behind it against 2, so its average is the more settled of the two.

Bubblegum ships an update daily, K every 8 days. The most recent releases landed on October 20, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Bubblegum | K |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (168 ratings)](https://appshunter.io/ios/app/bubblegum-learn-languages/id6578440980/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/k-word-master/id6745445370/reviews)** |
| Number of ratings | **168** | 2 |
| Positive reviews | 78.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 8 days |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 185 MB | 36 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Bubblegum Languages](https://appshunter.io/developer/1737615892) | [Hyungpil Kim](https://appshunter.io/developer/1566963196) |

## What reviewers say

### Bubblegum

[App page](https://appshunter.io/ios/app/bubblegum-learn-languages/id6578440980)

This app uses AI to create personalized Korean reading materials with inline translations and audio. It features an AI tutor for explanations and practice, and a unique review system that resurfaces saved vocabulary within new content. Track your progress with encouraging statistics.

**Highlights:** AI-generated personalized reading content, Inline translations and grammar explanations, Synchronized audio narration, AI Korean tutor chatbot, Regenerative vocabulary review, Progress tracking and statistics

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bubblegum Pro Weekly Subscription | $5.99 | per 7 days |
| Bubblegum Pro Monthly Subscription | $13.99 | per month |
| Bubblegum Plus Monthly Subscription | $14.99 | per month |
| Bubblegum Pro Monthly Subscription | $17.99 | per month |
| Bubblegum Pro Annual Subscription | $69.99 | per year |
| Bubblegum Pro Annual Subscription | $69.99 | per year |
| Bubblegum Pro Annual Subscription | $79.99 | per year |
| Bubblegum Pro Annual Subscription | $99.99 | per year |
| Bubblegum Pro 6-Month Subscription | $119.99 | per 6 months |
| Founding Member | $899.99 | one-time |


### K

[App page](https://appshunter.io/ios/app/k-word-master/id6745445370)

Learn and practice Korean vocabulary through engaging quizzes. Track your learning progress and advance your language skills with this educational tool. Designed for all levels of Korean learners.

**Highlights:** Korean vocabulary quizzes, Progress tracking, Skill leveling, Practice Korean words, Educational tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Bubblegum free?

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

### Is K free?

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

### Which has better reviews, Bubblegum or K?

K is rated higher. Bubblegum averages 4.9 out of 5 from 168 ratings, while K averages 5.0 from 2 ratings.

### Do Bubblegum or K have ads?

K shows ads; Bubblegum does not.

### Which is updated more often, Bubblegum or K?

Bubblegum ships an update daily, and K every 8 days. Most recently, Bubblegum was updated on October 20, 2026 and K on October 2, 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.*