I applied to Aptroid through our college. From a list of 450 people they shortlisted 20 people and I was one of them and explained that the interview would be held at their office. The process was pretty simple, they first explained the interview process which is two technical rounds, a managerial round and HR round. But for our group they conducted the technical round and then clubbed the remaining 3 rounds into one round and ended the interview process.