Denovers solve this problem by offering an Unlimited UI/UX Design Service bundle up with Frontend Engineering as an extension to Mobile & SaaS companies all across the globe on a Fixed Monthly Cost.
LiveViewStudio Founded by Marko Todorovic and Jana Rodic in 2009, LiveViewStudio is an independent cross media creative agency based in Belgrade
YouSir is recommend startup companies to conduct an audit before the product goes into the development cycle. It will help minimize financial risks. Their UX Audit is meant to help founders, product owners, designers, and developers see their product through a fresh set of eyes. They review it from the users perspective and in accordance with the best design practices they provide professional advice and an action plan.