# BnF Richelieu vs Archaeological Crypt

The clearest difference is update cadence: BnF Richelieu at every 3 weeks against Archaeological Crypt's every 6 months. BnF Richelieu also leads on iOS requirement (11.0 vs 13.0). On price, ads, in-app purchases and device support there is nothing between them.

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

BnF Richelieu ships an update every 3 weeks, Archaeological Crypt every 6 months. The most recent releases landed on September 24, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | BnF Richelieu | Archaeological Crypt |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/archaeological-crypt/id6473402040/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 months |
| Monetization | — | Free |
| Size | 4 MB | 20 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Bibliotheque nationale de France](https://appshunter.io/developer/501800444) | [Paris Musées](https://appshunter.io/developer/840892543) |

## What reviewers say

### BnF Richelieu

[App page](https://appshunter.io/ios/app/bnf-richelieu/id1644318983)

**Features:** macOS Compatibility

**In-app purchases:** none


### Archaeological Crypt

[App page](https://appshunter.io/ios/app/archaeological-crypt/id6473402040)

Explore the history and route of the archaeological crypt on Île de la Cité with this free guided tour app. It combines historical paths with temporary exhibition details to help you understand Parisian history through its vestiges. Available in three languages.

**Highlights:** Guided historical route, Temporary exhibition integration, Decipher historical vestiges, Understand Paris history, Available in 3 languages, Digital guestbook for feedback

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

**In-app purchases:** none


## Frequently asked questions

### Is BnF Richelieu free?

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

### Is Archaeological Crypt free?

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

### Do BnF Richelieu or Archaeological Crypt have ads?

Neither BnF Richelieu nor Archaeological Crypt shows ads.

### Which is updated more often, BnF Richelieu or Archaeological Crypt?

BnF Richelieu ships an update every 3 weeks, and Archaeological Crypt every 6 months. Most recently, BnF Richelieu was updated on September 24, 2026 and Archaeological Crypt on October 3, 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.*