Apps for your Mac, iPhone and iPad.
9BestApp is the home of Best App Limited. We make apps for macOS and iOS. Our newest is Max Display, and help with any of our apps is one message away.
Max Display
More screens for your Mac.
Max Display turns the iPad, iPhone, iPhone Duo or Mac next to you into another screen for your Mac. Drag windows onto it and use it by touch.
Help with an app
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Support
A question about one of our apps, or something not working? Write to us with the app name and your macOS or iOS version.
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Privacy
What our apps and this website collect, how it is used, and the choices you have.
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Terms
The licence you agree to when you download one of our apps from the App Store.
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