# World Flags vs KeyLockr

The clearest difference is in-app purchases: KeyLockr at none against World Flags's 1. World Flags's advantage is iOS requirement (13.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. World Flags sells 1 one-off in-app purchase. KeyLockr asks for nothing beyond the download.

Both ship on a similar rhythm, roughly daily. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | World Flags | KeyLockr |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Daily | Daily |
| Size | 76 MB | 12 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Quang Tri Mai Nguyen](https://appshunter.io/developer/1626809833) | [SafeX Inc.](https://appshunter.io/developer/1845193883) |

## What reviewers say

### World Flags

[App page](https://appshunter.io/ios/app/world-flags-dictionary-quiz/id6742062153)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove All Ads | $2.99 | one-time |


### KeyLockr

[App page](https://appshunter.io/ios/app/keylockr/id6757079791)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is World Flags free?

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

### Is KeyLockr free?

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

### Do World Flags or KeyLockr have ads?

Neither World Flags nor KeyLockr shows ads.

### Which is updated more often, World Flags or KeyLockr?

World Flags ships an update daily, and KeyLockr daily. Most recently, World Flags was updated on October 25, 2026 and KeyLockr on October 28, 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.*