Icons are designed on large screens, but are meant to be fitted into 0.5 x 0.5 inch square space. Sometimes, designers neglect this seemingly simple fact, resulting in a cluttered design. Moreover, apps are meant to be consumed on multiple devices - Smartphones, tablets and phablets. While designing icons, one has to make sure that the icon scales gracefully when the user switches from an iPad to an iPhone.
2. Make it Simple
According to some psychological studies, a user takes as less as 5 seconds to take the decision to download your app or ignore it. Try to make your icon do everything at once and you might confuse the user, or worse yet, make him switch to other similar apps. A good icon looks simple and fuss-free. Simplicity is a virtue, even on the app store.
3. Make it Memorable
90% of the brain processes is visual. So an icon plays a crucial role in conveying the value of your app. The best icons are those that just stick in users’ heads. Make your icon unique and memorable. One way to do that is using the right colours and imagery as per your industry. Also, the best icons reflect the functionality of an app.
4. Make it Unique