# The Official Prado Guide vs ca

The clearest difference is in-app purchases: ca at none against The Official Prado Guide's 1. ca also leads on update cadence (fortnightly vs every 9 months). The Official Prado Guide's advantage is iOS requirement (12.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. The Official Prado Guide sells 1 one-off in-app purchase. ca asks for nothing beyond the download.

The Official Prado Guide ships an update every 9 months, ca fortnightly. The most recent releases landed on October 24, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | The Official Prado Guide | ca |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (6 ratings)](https://appshunter.io/ios/app/the-official-prado-guide/id1396431975/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 7.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 135 MB | 28 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MUSEO NACIONAL DEL PRADO DIFUSIÓN SA](https://appshunter.io/developer/623358755) | [cyril adam](https://appshunter.io/developer/1548189590) |

## What reviewers say

### The Official Prado Guide

[App page](https://appshunter.io/ios/app/the-official-prado-guide/id1396431975)

Explore one of the world's most important art galleries from anywhere. Discover masterpieces spanning centuries of European art, with curator-commented insights and high-quality images. Unlock full content through in-app purchase.

**Highlights:** Over 400 high-quality artwork images, Curator-commented insights, Free access to 10 masterpieces, Personal favorites selection, Index by artists and collections, Search engine for titles and artists

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| The Prado Guide Premium | $4.99 | one-time |


### ca

[App page](https://appshunter.io/ios/app/ca-inlineportfolio/id6738900138)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is The Official Prado Guide free?

The Official Prado Guide is free to download, with in-app purchases available.

### Is ca free?

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

### Do The Official Prado Guide or ca have ads?

Neither The Official Prado Guide nor ca shows ads.

### Which is updated more often, The Official Prado Guide or ca?

The Official Prado Guide ships an update every 9 months, and ca fortnightly. Most recently, The Official Prado Guide was updated on October 24, 2026 and ca on October 10, 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.*