# よみこ vs DeferDeck

The clearest difference is in-app purchases: DeferDeck at none against よみこ's 2. よみこ's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. よみこ sells 2 in-app purchases, starting at $1.99 per month. DeferDeck asks for nothing beyond the download.

よみこ ships an update every 4 days, DeferDeck every 2 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | よみこ | DeferDeck |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Size | 4 MB | 12 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [koji yanagida](https://appshunter.io/developer/1875114457) | [Yasuko Shikiuchi](https://appshunter.io/developer/316029096) |

## What reviewers say

### よみこ

[App page](https://appshunter.io/ios/app/id6760806729)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Plan | $1.99 | per month |
| Yearly Plan | $19.99 | per year |


### DeferDeck

[App page](https://appshunter.io/ios/app/deferdeck/id6779689670)

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

**In-app purchases:** none


## Frequently asked questions

### Is よみこ free?

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

### Is DeferDeck free?

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

### Do よみこ or DeferDeck have ads?

DeferDeck shows ads; よみこ does not.

### Which is updated more often, よみこ or DeferDeck?

よみこ ships an update every 4 days, and DeferDeck every 2 days. Most recently, よみこ was updated on October 16, 2026 and DeferDeck on October 13, 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.*