# Oyster Errors vs Granada Guide by Civitatis.com

The clearest difference is price: Granada Guide by Civitatis.com at Free against Oyster Errors's $1.99. Oyster Errors's advantage is update cadence (every 4 months vs every 8 months) and iOS requirement (9.3 vs 14.0). On ads, in-app purchases and device support there is nothing between them.

Granada Guide by Civitatis.com is free to download; Oyster Errors costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oyster Errors ships an update every 4 months, Granada Guide by Civitatis.com every 8 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Oyster Errors | Granada Guide by Civitatis.com |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/granada-guide-by-civitatiscom/id1477977038/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 8 months |
| Monetization | Paid | **Free** |
| Size | 5 MB | 107 MB |
| Requires iOS | **9.3** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Frostmd LLP](https://appshunter.io/developer/517289690) | [CIVITATIS TOURS S.L.](https://appshunter.io/developer/1199835690) |

## What reviewers say

### Oyster Errors

[App page](https://appshunter.io/ios/app/oyster-errors-london/id886704291)

Decode mysterious ticket barrier error codes encountered on London's public transport. This app helps you understand the meaning behind the numbers displayed at gates, so you're never confused again.

**Highlights:** Decode Oyster and Contactless card errors, Understand ticket barrier error codes, Covers London Underground, Overground, DLR, and National Rail, Search by typing or using a picker, Reveals secrets behind error numbers

**Features:** Vision Pro support

**In-app purchases:** none


### Granada Guide by Civitatis.com

[App page](https://appshunter.io/ios/app/granada-guide-by-civitatiscom/id1477977038)

This free travel guide provides comprehensive information for visiting Granada. It covers attractions, dining, accommodation, transportation, and shopping, along with practical tips for planning your trip and making the most of your time.

**Highlights:** Comprehensive tourist information, Practical trip planning advice, Attraction details and hours, Dining and accommodation recommendations, Transportation and shopping guidance, Interactive map, Activity booking

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Oyster Errors free?

Oyster Errors costs $1.99, with no in-app purchases.

### Is Granada Guide by Civitatis.com free?

Granada Guide by Civitatis.com is free to download, with no in-app purchases.

### Do Oyster Errors or Granada Guide by Civitatis.com have ads?

Neither Oyster Errors nor Granada Guide by Civitatis.com shows ads.

### Which is updated more often, Oyster Errors or Granada Guide by Civitatis.com?

Oyster Errors ships an update every 4 months, and Granada Guide by Civitatis.com every 8 months. Most recently, Oyster Errors was updated on October 4, 2026 and Granada Guide by Civitatis.com on October 12, 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.*