It is easy to use, has many different options that can make it suitable in almost every situation including mobile apps or websites as well! I have never encountered any problems with this app so far which makes me very happy about its quality of work!! The only thing i dislike are some minor UI issues (the font size sometimes changes when you scroll down) but those things do not prevent us from using them anymore since they're already solved by other features like drag & drop functionality etc.. We used effinapp because we wanted our team members all over Europe working together without having physical meetings each time something was needed done during their daily routine - thus saving both money AND COST OF TRAVELING.