# What are the smartphone requirements for the Tour Guide App?

## Why older smartphones and operating systems are no longer supported

At GUIBO, we aim to offer your travelers a modern, reliable, and secure app experience – including digital travel documents, navigation, offline content, and live updates.

To continuously improve these features, we depend on up-to-date technology. Older smartphones and outdated operating systems often lack the compatibility needed to support modern app frameworks. While basic navigation may still work on these devices, many newer app features rely on system capabilities that are no longer available or supported.

Another important factor is security: Apple and Google no longer provide security updates for many older operating system versions. This makes it impossible for us to guarantee a safe and functional experience on these devices.

### Minimum requirements:

* **iOS:** The app requires at least iOS 16.
* **Android:** Due to the wide variety of Android devices and manufacturer-specific changes, we cannot define a precise minimum Android version. As a guideline, you can refer to the Android versions currently supported by Google:\
  👉 <https://endoflife.date/android>

To help you communicate this clearly to travelers, we’ve prepared a simple explanation below that you can share directly.

## Worldwide Android and iOS (Apple) version distribution

| Android (April 2025)                                                                                                                                                             | Apple iOS (April 2025)                                                                                                                                            |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <ul><li>Android 15: 10,01 %</li><li>Android 14: 33,49 %</li><li>Android 13: 16,94 %</li><li>Android 12: 12,11 %</li><li>Android 11: 10,42 %</li><li>Android 10: 5,57 %</li></ul> | <ul><li>iOS 18.3: 53,61 %</li><li>iOS 18.4: 11,69 %</li><li>iOS 17.6: 4,66 %</li><li>iOS 18.1: 4,17 %</li><li>iOS 16.7: 3,25 %</li><li>iOS 15.8: 2,64 %</li></ul> |
| Source: [Statcounter Global Stats](https://gs.statcounter.com/android-version-market-share)                                                                                      | Source: [Statcounter Global Stats](https://gs.statcounter.com/ios-version-market-share/)                                                                          |

## Communication template for your travelers

See our [First Level Support Guide (click)](/publishing/tour-guide-app/first-level-support-guide.md) for a ready to use communication template you can use for your travelers.


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