We've used Specctr for Illustrator and Photoshop. Get's the job done. https://www.specctr.com/

And we use this plugin for Sketch https://github.com/utom/sketch-measure

We just launched our new Wewee product, finding beautiful bathrooms when and where you need them - check it: https://signup.wework.com/wewee?ref=wee-promo

WeWork is always looking for talented designers both on the digital end and print/marketing!

Shoot me an email if you're interested mwhetsell@wework.com