# World Flags Viewer vs KeisanReflex

World Flags Viewer and KeisanReflex are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | World Flags Viewer | KeisanReflex |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/world-flags-viewer/id6760290283/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | — |
| Monetization | Ad-supported | — |
| Size | 5 MB | 6 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MIZOU, CO., LTD.](https://appshunter.io/developer/1542553141) | [TOHRU HIRANO](https://appshunter.io/developer/1871149066) |

## What reviewers say

### World Flags Viewer

[App page](https://appshunter.io/ios/app/world-flags-viewer/id6760290283)

Display national flags in fullscreen for sporting events or explore them by region. Features include interactive cheer modes with confetti and text overlays, plus offline access to a vast library of high-resolution flags.

**Highlights:** Fullscreen flag display, Interactive cheer modes, Country and region browsing, Favorite flag saving, Instant country search, High-resolution images

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

**In-app purchases:** none


### KeisanReflex

[App page](https://appshunter.io/ios/app/keisanreflex/id6771355937)

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

**In-app purchases:** none


## Frequently asked questions

### Is World Flags Viewer free?

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

### Is KeisanReflex free?

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

### Do World Flags Viewer or KeisanReflex have ads?

Both World Flags Viewer and KeisanReflex show ads.

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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.*