# SkillCert vs Today's Letter

The clearest difference is in-app purchases: Today's Letter at none against SkillCert's 3. Today's Letter also leads on ads (none vs shown). SkillCert's advantage is update cadence (every 4 days vs every 3 months) and device support (3 vs 1). On price there is nothing between them.

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

SkillCert ships an update every 4 days, Today's Letter every 3 months. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SkillCert | Today's Letter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 3 months |
| Size | 155 MB | 82 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Yotaro SATO](https://appshunter.io/developer/1862063948) | [Mami Kawai](https://appshunter.io/developer/1890495943) |

## 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 |


### Today's Letter

[App page](https://appshunter.io/ios/app/todays-letter/id6761917431)

**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 Today's Letter free?

Today's Letter is free to download, with no in-app purchases.

### Do SkillCert or Today's Letter have ads?

SkillCert shows ads; Today's Letter does not.

### Which is updated more often, SkillCert or Today's Letter?

SkillCert ships an update every 4 days, and Today's Letter every 3 months. Most recently, SkillCert was updated on November 9, 2026 and Today's Letter on November 5, 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.*