Hi folks, as previously mentioned I E mailed the dev for camfind concerning the types of devices it can be used on, the following is their response. sure it will make sense to some of you! HTH alistair Hello Alistair, Thank you for writing us. CamFind is compatible with iPhone, iPad, and iPod touch. The app is optimized for iPhone 5. CamFind currently does not have a standalone app for the iPad. However, you can still download it on your device. To download it on an iPad you'll have to look in the iPhone App Store, or follow this direct link: https://itunes.apple.com/us/app/camfind-search-qr-reader-price/id595857716?mt=8. Best Wishes, CamFind Team