The trouble with building mobile computing applications is that end users have little tolerance when it comes to how they expect those applications to behave. Never mind the fact that mobile applications are amongst some of the most challenging to create; the second somebody has a less than optimal experience they're off to another application. Needless to say, that puts a lot of pressure on mobile application developers.
The Ontimenow Scrum API is an Agile management tool with REST calls and JSON responses, and uses Oauth2 authentication. The API allows calls to check contacts, view defects, check features, tasks, incidents, projects, releases and users.