I applied online. The process took 1 day. I interviewed at App Street (Gurgaon, Haryana) in Feb 2015
Interview
F2F interview
Tested basic knowledge , Sense of app development , Asked for ideas of perfect apps , considered academics
asked few question about framework
UI refinements
Was asked to come on probation period and learn more about Objective C with real time projects
Sample project was given to submit in as many days as you and on that basis profile was reviewed