# FINE Sec vs BookNoir

The clearest difference is in-app purchases: FINE Sec at none against BookNoir's 1. FINE Sec also leads on iOS requirement (13.0 vs 17). BookNoir's advantage is update cadence (weekly vs every 5 months). On price there is nothing between them.

Both are free to download. BookNoir sells 1 one-off in-app purchase. FINE Sec asks for nothing beyond the download.

FINE Sec ships an update every 5 months, BookNoir weekly. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FINE Sec | BookNoir |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 5 months | **Weekly** |
| Size | 225 MB | 13 MB |
| Requires iOS | **13.0** | 17 |
| Devices | — | **iPhone** |
| Age rating | 17+ | 4+ |
| Developer | [FINE SECURITIES LIMITED](https://appshunter.io/developer/1714573348) | [晓光 李](https://appshunter.io/developer/1553199200) |

## What reviewers say

### FINE Sec

[App page](https://appshunter.io/ios/app/fine-sec/id6502427413)

**In-app purchases:** none


### BookNoir

[App page](https://appshunter.io/ios/app/booknoir/id6751766981)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $3.99 | one-time |


## Frequently asked questions

### Is FINE Sec free?

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

### Is BookNoir free?

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

### Which is updated more often, FINE Sec or BookNoir?

FINE Sec ships an update every 5 months, and BookNoir weekly. Most recently, FINE Sec was updated on November 4, 2026 and BookNoir on October 28, 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.*