# JUHUU vs KARUSO

The clearest difference is device support: JUHUU at 3 against KARUSO's 1. JUHUU also leads on iOS requirement (15.1 vs 17). On price, update cadence, ads and in-app purchases there is nothing between them.

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

JUHUU ships an update every 5 weeks, KARUSO every 3 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | JUHUU | KARUSO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 132 MB | 35 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JUHUU BikeBox GmbH](https://appshunter.io/developer/1603108127) | [KARUSO GmbH](https://appshunter.io/developer/1752865005) |

## What reviewers say

### JUHUU

[App page](https://appshunter.io/ios/app/juhuu/id1603108125)

**Features:** Apple Wallet

**In-app purchases:** none


### KARUSO

[App page](https://appshunter.io/ios/app/karuso/id6739733163)

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is JUHUU free?

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

### Is KARUSO free?

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

### Do JUHUU or KARUSO have ads?

Neither JUHUU nor KARUSO shows ads.

### Which is updated more often, JUHUU or KARUSO?

JUHUU ships an update every 5 weeks, and KARUSO every 3 weeks. Most recently, JUHUU was updated on October 4, 2026 and KARUSO on October 1, 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.*