# BugPlanetEra vs Lock&Learn Korean

The clearest difference is in-app purchases: BugPlanetEra at none against Lock&Learn Korean's 2. BugPlanetEra also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.5). Lock&Learn Korean's advantage is update cadence (every 3 days vs every 5 months). On price and ads there is nothing between them.

Both are free to download. Lock&Learn Korean sells 2 in-app purchases, starting at $14.99 per year. BugPlanetEra asks for nothing beyond the download.

BugPlanetEra ships an update every 5 months, Lock&Learn Korean every 3 days. The most recent releases landed on October 11, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | BugPlanetEra | Lock&Learn Korean |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 days** |
| Size | 2 MB | 19 MB |
| Requires iOS | **13.0** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Khan Kao](https://appshunter.io/developer/1119938868) | [Jeroen Meij](https://appshunter.io/developer/6787467074) |

## What reviewers say

### BugPlanetEra

[App page](https://appshunter.io/ios/app/bugplanetera/id1492067649)

**Features:** macOS Compatibility

**In-app purchases:** none


### Lock&Learn Korean

[App page](https://appshunter.io/ios/app/lock-and-learn-korean-topik-words/id6798330804)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $14.99 | per year |
| Lifetime Unlock | $34.99 | one-time |


## Frequently asked questions

### Is BugPlanetEra free?

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

### Is Lock&Learn Korean free?

Lock&Learn Korean is free to download, with in-app purchases available.

### Do BugPlanetEra or Lock&Learn Korean have ads?

Neither BugPlanetEra nor Lock&Learn Korean shows ads.

### Which is updated more often, BugPlanetEra or Lock&Learn Korean?

BugPlanetEra ships an update every 5 months, and Lock&Learn Korean every 3 days. Most recently, BugPlanetEra was updated on October 11, 2026 and Lock&Learn Korean on October 22, 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.*