# Flex5 vs 크루루

The clearest difference is update cadence: 크루루 at every 2 days against Flex5's every 3 months. Flex5's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Flex5 ships an update every 3 months, 크루루 every 2 days. The most recent releases landed on October 6, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Flex5 | 크루루 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (29 ratings)](https://appshunter.io/ios/app/flex5/id1151553783/reviews)** | — |
| Number of ratings | **29** | — |
| Positive reviews | 18.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | — |
| Size | 11 MB | 42 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flex Rental Solutions](https://appshunter.io/developer/926430298) | [Jihyeok AN](https://appshunter.io/developer/1886982132) |

## What reviewers say

### Flex5

[App page](https://appshunter.io/ios/app/flex5/id1151553783)

This business application offers a modern, HTML5-based user interface designed for mobile devices. It features a robust and scalable backend infrastructure built to support future growth and high user loads.

**Highlights:** HTML5-based UI, Tablet and phone support, Desktop browser UI development, Highly scalable backend, Foundation for future platform growth

**Features:** macOS Compatibility

**In-app purchases:** none


### 크루루

[App page](https://appshunter.io/ios/app/id6760951659)

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

**In-app purchases:** none


## Frequently asked questions

### Is Flex5 free?

Flex5 is free to download, with no in-app purchases.

### Is 크루루 free?

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

### Do Flex5 or 크루루 have ads?

Neither Flex5 nor 크루루 shows ads.

### Which is updated more often, Flex5 or 크루루?

Flex5 ships an update every 3 months, and 크루루 every 2 days. Most recently, Flex5 was updated on October 6, 2026 and 크루루 on September 26, 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.*