# 週刊ダイヤモンド vs biblog

The clearest difference is review sentiment: biblog at 94% against 週刊ダイヤモンド's 10%. biblog also leads on in-app purchases (none vs 6) and update cadence (every 3 weeks vs every 7 months). 週刊ダイヤモンド's advantage is device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price and ads there is nothing between them.

Both are free to download. 週刊ダイヤモンド sells 6 in-app purchases, starting at $4.99 per 7 days. biblog asks for nothing beyond the download.

週刊ダイヤモンド ships an update every 7 months, biblog every 3 weeks. The most recent releases landed on October 23, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 週刊ダイヤモンド | biblog |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 10.0% of reviews | **94.1% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 28 MB | 288 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DIAMOND, Inc.](https://appshunter.io/developer/368890276) | [biblog LLC](https://appshunter.io/developer/1516164114) |

## What reviewers say

### 週刊ダイヤモンド

[App page](https://appshunter.io/ios/app/id486317533)

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 週刊ダイヤモンド | $4.99 | per 7 days |
| 週刊ダイヤモンド | $22.99 | per month |
| 週刊ダイヤモンド | $39.99 | per 2 months |
| 週刊ダイヤモンド | $59.99 | per 3 months |
| 週刊ダイヤモンド | $129.99 | per 6 months |
| 週刊ダイヤモンド | $199.99 | per year |


### biblog

[App page](https://appshunter.io/ios/app/biblog/id6446214912)

Capture, organize, and export impactful quotes from books, articles, and more. Easily scan text, add notes and tags, and share your favorite words with beautiful typography.

**Highlights:** Smart OCR quote capture, Export quotes as images, Barcode scanning for book info, Organize with notes and tags, Save quotes from analog and digital media

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

**In-app purchases:** none


## Frequently asked questions

### Is 週刊ダイヤモンド free?

週刊ダイヤモンド is free to download, with in-app purchases available.

### Is biblog free?

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

### Do 週刊ダイヤモンド or biblog have ads?

Neither 週刊ダイヤモンド nor biblog shows ads.

### Which is updated more often, 週刊ダイヤモンド or biblog?

週刊ダイヤモンド ships an update every 7 months, and biblog every 3 weeks. Most recently, 週刊ダイヤモンド was updated on October 23, 2026 and biblog on October 8, 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.*