# Learn World Flags vs Correlation Coefficient

The clearest difference is price: Learn World Flags at Free against Correlation Coefficient's $0.99. Correlation Coefficient's advantage is ads (none vs shown). On in-app purchases, device support and iOS requirement there is nothing between them.

Learn World Flags is free to download; Correlation Coefficient costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Learn World Flags | Correlation Coefficient |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/learn-world-flags-quiz/id6470424679/reviews)** | — |
| Number of ratings | **5** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 14 months | — |
| Monetization | Ad-supported | — |
| Size | 9 MB | 1 MB |
| Requires iOS | **15.6** | 16.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sathish Shanmugam](https://appshunter.io/developer/1475407729) | [Basel AbuTaleb](https://appshunter.io/developer/1604005525) |

## What reviewers say

### Learn World Flags

[App page](https://appshunter.io/ios/app/learn-world-flags-quiz/id6470424679)

This app offers an interactive way to learn and memorize flags from over 190 countries. Features include a searchable flag list, voice pronunciation, and a quiz game to test your knowledge. It's designed for easy learning and offline use.

**Highlights:** Flags of 190+ countries, Search flags by country name, Voice pronunciation for each flag, Flag quiz game, View flags in large size, Offline mode

**Features:** macOS Compatibility

**In-app purchases:** none


### Correlation Coefficient

[App page](https://appshunter.io/ios/app/correlation-coefficient/id6473872692)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Learn World Flags free?

Learn World Flags is free to download, with no in-app purchases.

### Is Correlation Coefficient free?

Correlation Coefficient costs $0.99, with no in-app purchases.

### Do Learn World Flags or Correlation Coefficient have ads?

Learn World Flags shows ads; Correlation Coefficient does not.

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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.*