Great for communication with freelancers but I wish they made the app not just for messaging but also for other functionalities, like viewing freelancer profiles, posting jobs, hiring etc., so that you can get things done on the App. It a bit disappointing that you can only message but I would still give it a 4 because the App itself is pretty well-designed and not glitchy.
Ettieberry about Upwork, v2.3.0