# KAMUI Mobile vs SkillCert

The clearest difference is in-app purchases: KAMUI Mobile at none against SkillCert's 3. KAMUI Mobile also leads on ads (none vs shown) and update cadence (every 2 days vs every 4 days). On price, device support and iOS requirement there is nothing between them.

Both are free to download. SkillCert sells 3 in-app purchases, starting at $2.99 per month. KAMUI Mobile asks for nothing beyond the download.

KAMUI Mobile ships an update every 2 days, SkillCert every 4 days. The most recent releases landed on September 26, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | KAMUI Mobile | SkillCert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 days** | Every 4 days |
| Size | 33 MB | 155 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [KandaQuantum](https://appshunter.io/developer/1856778074) | [Yotaro SATO](https://appshunter.io/developer/1862063948) |

## What reviewers say

### KAMUI Mobile

[App page](https://appshunter.io/ios/app/kamui-mobile/id6755861199)

**Features:** macOS Compatibility

**In-app purchases:** none


### SkillCert

[App page](https://appshunter.io/ios/app/skillcert-mostcertifications/id6756679793)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SKILL Cert by AI ライトプラン | $2.99 | per month |
| SKILL Cert by AI スタンダードプラン | $9.99 | per month |
| SKILL Cert by AI プレミアムプラン | $29.99 | per month |


## Frequently asked questions

### Is KAMUI Mobile free?

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

### Is SkillCert free?

SkillCert is free to download, with in-app purchases available.

### Do KAMUI Mobile or SkillCert have ads?

SkillCert shows ads; KAMUI Mobile does not.

### Which is updated more often, KAMUI Mobile or SkillCert?

KAMUI Mobile ships an update every 2 days, and SkillCert every 4 days. Most recently, KAMUI Mobile was updated on September 26, 2026 and SkillCert on October 14, 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.*