# Robo Flags. vs s＊カルク

The clearest difference is ads: s＊カルク at none against Robo Flags.'s shown. s＊カルク also leads on update cadence (every 5 days vs every 4 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Robo Flags. ships an update every 4 months, s＊カルク every 5 days. The most recent releases landed on October 2, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Robo Flags. | s＊カルク |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 5 days** |
| Size | 59 MB | 0 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [Seigo Mizouchi](https://appshunter.io/developer/1880010064) |

## What reviewers say

### Robo Flags.

[App page](https://appshunter.io/ios/app/robo-flags/id675525282)

**Features:** Vision Pro support

**In-app purchases:** none


### s＊カルク

[App page](https://appshunter.io/ios/app/s/id6759860921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Robo Flags. free?

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

### Is s＊カルク free?

s＊カルク is free to download, with no in-app purchases.

### Do Robo Flags. or s＊カルク have ads?

Robo Flags. shows ads; s＊カルク does not.

### Which is updated more often, Robo Flags. or s＊カルク?

Robo Flags. ships an update every 4 months, and s＊カルク every 5 days. Most recently, Robo Flags. was updated on October 2, 2026 and s＊カルク on September 27, 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.*