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Skills that raise your pay

• Both platforms

  Developers who can ship a good iPhone app and a good Android app are rarer than you would think, and cost more.

• Backend work

  Most apps are a thin layer over a server. Knowing how to build the API (application programming interface) behind your app doubles what you can be handed.

• Performance and battery work

  Making a slow app fast on a cheap phone is a specific, valued skill.

• Accessibility

  Screen reader support and proper contrast are legally required for many clients and rarely done well.