Today there are many tools on the market for both Low Fidelity and High Fidelity prototyping and mockup design. This article will compare 4 of the most powerful, versatile, and most popular programs. These will be Adobe Xd, Figma, Sketch, and InVision. What are the differences between them? We will describe their functionality and capabilities, advantages and disadvantages. We will also tell you which program we chose and why.

Nielsen Heuristics is a well-known and proven set of best practices in mobile, web, and desktop application design. They can be considered a basic checklist, useful in evaluating the usability of a website or mobile application. The heuristics presented by Nielsen is still applicable today and is increasingly considered not only in the context of UX but also in conjunction with SEO.

- It feels like they’re a part of our company - says Jamie Jacobs, CEO of KFM 24/7 Ltd., one of our most loyal clients. This is just an excerpt from an opinion that was posted on Clutch.