# readin vs 책력

The clearest difference is ads: 책력 at none against readin's shown. readin's advantage is update cadence (every 4 days vs every 2 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.

readin ships an update every 4 days, 책력 every 2 months. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | readin | 책력 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 4 days** | Every 2 months |
| Size | 33 MB | 32 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jeongbin Park](https://appshunter.io/developer/1819440689) | [jeongrim oh](https://appshunter.io/developer/1893507432) |

## What reviewers say

### readin

[App page](https://appshunter.io/ios/app/readin/id6752389566)

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

**In-app purchases:** none


### 책력

[App page](https://appshunter.io/ios/app/id6762242539)

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

**In-app purchases:** none


## Frequently asked questions

### Is readin free?

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

### Is 책력 free?

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

### Do readin or 책력 have ads?

readin shows ads; 책력 does not.

### Which is updated more often, readin or 책력?

readin ships an update every 4 days, and 책력 every 2 months. Most recently, readin was updated on September 10, 2026 and 책력 on September 9, 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.*