Wait! There's more. Use Sketch to make the prototypes, then put them into Craft by Invision to make clickable prototypes you can share on the web to get localized comments from collaborators on your design. You can also use Inspect by Invision to hand off the fonts, color palettes, and assets from designers to the developers. I've tried Adobe XD for over a year but for over $20/mo, the features haven't caught up to the value this Sketch stack gets me for a single $100 payment plus freemium Invision subscription - and Adobe still has a long way to go.