Speed is always the most important feature.
Your service must be useful right away, not after an hour of set-up.
Your software should have a personality and voice.
Less is always more when you first launch.
Make your app programmable — allow others to add on to it in some way.
Individuals should be able to personalize your app.
Make sure everything in your application has a unique, comprehensible URL (the REST approach).Build your app so that it’s optimized to be found in terms of both social media and search.Make it visually clean.Be playful — you can turn anything into a game.