Our designer friends will say ‘duh, of course’ to this tip – but it’s not as obvious as it may seem. Notice it’s user experience rather than user interface. Hiring the best designer in the world to generate your app’s screens would be great – but having pixel-perfect design is not the solution. That would be the equivalent of jamming perfectly painted puzzle pieces together and hoping they fit. The same sentiment goes for perfect engineering; if you have the best and most clever code in the app store, it doesn’t necessarily translate into users.