# 日医Lib vs Chieumi

The clearest difference is iOS requirement: 日医Lib at 11.0 against Chieumi's 15.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

日医Lib ships an update every 3 months, Chieumi every 2 months. The most recent releases landed on September 4, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | 日医Lib | Chieumi |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 25 MB | 52 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyorinsha Co.,Ltd](https://appshunter.io/developer/482525161) | [KOSEI PUBLISHING CO.](https://appshunter.io/developer/1626942067) |

## What reviewers say

### 日医Lib

[App page](https://appshunter.io/ios/app/lib/id926183203)

Access and read electronic books from the Japan Medical Association. Features include unique scrolling for academic papers, shared notes and bookmarks, and social media integration for discussion.

**Highlights:** Electronic books from Japan Medical Association, Unique scrolling for academic papers, Shared notes and bookmarks, SNS integration for discussion, Cross-scroll and vertical scroll

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

**In-app purchases:** none


### Chieumi

[App page](https://appshunter.io/ios/app/chieumi/id1626941855)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 日医Lib free?

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

### Is Chieumi free?

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

### Do 日医Lib or Chieumi have ads?

Neither 日医Lib nor Chieumi shows ads.

### Which is updated more often, 日医Lib or Chieumi?

日医Lib ships an update every 3 months, and Chieumi every 2 months. Most recently, 日医Lib was updated on September 4, 2026 and Chieumi on September 12, 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.*