The SpeedQuizzing app is currently compatible with any Apple handset running iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch. Available free from the Apple App Store.
You can find your Apple iOS version in Settings/General/About/Version
The SpeedQuizzing app is compatible with Android devices running Android OS 4.0 or later. Available from the Google Play App Store.
You can find your Android OS version in Settings/About phone/Software information/Android version
The SpeedQuizzing app is compatible with Kindle Fire 3rd Generation and above. Available from the Amazon App Store.
You can find your Kindle device version in Settings/Device Options/Device Model.
The SpeedQuizzing app is not currently available for Blackberry or Windows Mobile handsets.