# indexx vs 북크루

The clearest difference is update cadence: 북크루 at every 4 days against indexx's every 3 months. 북크루 also leads on monetization model (free vs ad-supported) and iOS requirement (15.0 vs 26.0). On price, review sentiment, 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.

indexx ships an update every 3 months, 북크루 every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | indexx | 북크루 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Ad-supported | **Free** |
| Size | 4 MB | 30 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OKMIN LEE](https://appshunter.io/developer/1501145758) | [Seonwo You](https://appshunter.io/developer/6797201584) |

## What reviewers say

### indexx

[App page](https://appshunter.io/ios/app/indexx/id6757661654)

Capture, organize, and share impactful sentences from books. This app uses OCR to extract text from photos or allows manual entry, linking each quote to its source and your reflections. Create shareable quote cards and track your reading journey with a personal library.

**Highlights:** Capture sentences via OCR or manual entry, Link quotes to book, page, and reflections, Generate shareable quote cards, Track reading progress and history, Barcode scanner for book registration, Personal sentence library

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

**In-app purchases:** none


### 북크루

[App page](https://appshunter.io/ios/app/id6797201582)

This app helps you finish books by reading with friends. Set reading goals, track progress together, and schedule meetups based on your reading pace. Your reading history is saved as a virtual bookshelf.

**Highlights:** Read with friends, Track reading progress, Set reading goals, Schedule meetups, Virtual bookshelf, Share quotes and notes

**In-app purchases:** none


## Frequently asked questions

### Is indexx free?

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

### Is 북크루 free?

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

### Do indexx or 북크루 have ads?

Neither indexx nor 북크루 shows ads.

### Which is updated more often, indexx or 북크루?

indexx ships an update every 3 months, and 북크루 every 4 days. Most recently, indexx was updated on November 5, 2026 and 북크루 on October 31, 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.*