Mobile apps Development 35 Application software 34 Android (Electronic resource) 12 Design 11 iOS (Electronic resource) 10 Mobile computing 7 Programming 6 Web applications 6 Web sites 6 JavaScript (Computer program language) 5 User interfaces (Computer systems) 5 iPhone (Smartphone) 5 Web site development 4 HTML (Document markup language) 3 Java (Computer program language) 3 Testing 3 Apple computer 2 Application program interfaces (Computer software) 2 Computer programming 2 Cross-platform software development 2 Objective-C (Computer program language) 2 Open source software 2 Tablet computers 2 iPad (Computer) 2 AngularJS (Software framework) 1 C# (Computer program language) 1 Cascading style sheets 1 Clocks and watches 1 Cocoa (Application development environment) 1