# SkillCert vs 情報マスター

The clearest difference is in-app purchases: 情報マスター at none against SkillCert's 3. 情報マスター also leads on ads (none vs shown). SkillCert's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price and update cadence there is nothing between them.

Both are free to download. SkillCert sells 3 in-app purchases, starting at $2.99 per month. 情報マスター asks for nothing beyond the download.

SkillCert ships an update every 4 days, 情報マスター weekly. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | SkillCert | 情報マスター |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Weekly |
| Size | 155 MB | 28 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yotaro SATO](https://appshunter.io/developer/1862063948) | [ryo otsuka](https://appshunter.io/developer/6788628020) |

## What reviewers say

### 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 |


### 情報マスター

[App page](https://appshunter.io/ios/app/id6818530141)

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

**In-app purchases:** none


## Frequently asked questions

### Is SkillCert free?

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

### Is 情報マスター free?

情報マスター is free to download, with no in-app purchases.

### Do SkillCert or 情報マスター have ads?

SkillCert shows ads; 情報マスター does not.

### Which is updated more often, SkillCert or 情報マスター?

SkillCert ships an update every 4 days, and 情報マスター weekly. Most recently, SkillCert was updated on October 14, 2026 and 情報マスター on October 24, 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.*