# Crowdwave! vs Sumi Kac

The clearest difference is update cadence: Sumi Kac at every 4 days against Crowdwave!'s every 5 weeks. 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.

Crowdwave! ships an update every 5 weeks, Sumi Kac every 4 days. The most recent releases landed on October 10, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Crowdwave! | Sumi Kac |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Size | 130 MB | 361 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [建涛 钟](https://appshunter.io/developer/1516809739) | [文龙 田](https://appshunter.io/developer/1866755122) |

## What reviewers say

### Crowdwave!

[App page](https://appshunter.io/ios/app/crowdwave/id1535927809)

**In-app purchases:** none


### Sumi Kac

[App page](https://appshunter.io/ios/app/sumi-kac/id6757266530)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Crowdwave! free?

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

### Is Sumi Kac free?

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

### Do Crowdwave! or Sumi Kac have ads?

Both Crowdwave! and Sumi Kac show ads.

### Which is updated more often, Crowdwave! or Sumi Kac?

Crowdwave! ships an update every 5 weeks, and Sumi Kac every 4 days. Most recently, Crowdwave! was updated on October 10, 2026 and Sumi Kac on October 11, 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.*