Contact a third-party vendor
The best source of help for a product not made by Apple (a third-party product) is the company or person who made it – its vendor or developer.
Find the vendor's contact information
To find contact information for a product's vendor or developer, visit their website or search the web for their name or the name of their product.
If you're not sure who made the product:
If it's an app you can find on the App Store, the App Store will display who made it and where to get support. You can also open the app and look in its menus and settings for contact information. If the app is installed on your Mac, you can select it in the Finder, then press Command-I to open an Info window that may also show who made it.
If it's an accessory or other device, you can contact the place of purchase to get help with identifying who made it.
Find more third-party products
Find apps using the App Store app, which is available on Mac, iPhone, iPad, iPod touch and Apple TV devices.
Find accessories and other devices on Apple's website, or visit an Apple Store or Apple Authorised Reseller.
Find Microsoft products on Microsoft's website and the App Store.
Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement. Apple assumes no responsibility with regard to the selection, performance or use of third-party websites or products. Apple makes no representations regarding third-party website accuracy or reliability. Contact the vendor for additional information.