Sketch 45.2 and above requires Mac OS X El Capitan (10.11) or newer, and a working Internet connection, in order to be able to install the software and receive updates and upgrades. As documents get more complex though, involving multiple Pages and hundreds of Artboards, a powerful Mac with more RAM will definitely help. Please download our 30 day free trial to test the performance before you purchase.
Novice and advanced users can find more detailed information about Sketch and its features in our Documentation. You can also take a look at our Resources page where we feature videos and other content to help you get started.
You can read the Sketch End User License Agreement here, which is a legal contract between a software application author or publisher and the user of that application.
Due to the technologies and frameworks exclusive to OS X that Sketch has been built upon, regrettably we will not be considering supporting Sketch on either of these platforms.
We don’t currently have plans for an iOS version of Sketch for reasons beyond our control.
There is no official Android version of Sketch Mirror, but other people have built apps for Android that work well with Sketch: