Review on SyncSketch by Jamie Rausch

The fact it syncs up to everyone's devices as well as their software makes this very convenient. I also love how easy it is when you're collaborating on documents or presentations to be able to see what each other have been writing without having to copy/paste from one device to another. Sometimes it doesn't sync properly if certain people don't open the document first but otherwise we haven't had any issues so far. We've used it mostly for sharing information between our team members who work remotely. It has allowed us to collaborate faster than ever before which is great!