I have been very successful developer over 4 years. I have strong knowledge in IOS ,React-native and Android platforms. I'm expert at the following features User authentication Offline storage Camera API Firebase Google maps with markers Chat& Messaging with video calling features ,opentok,pubnub,Appsflyer analytics, Google analytics, Facebook analytics Social media integration Bluetooth low energy in-App Purchase Payments Google play and appstore setup I'm enthusiastic facilitator for client solutions and respond to client needs for applications with an eye to the most feasible and effective solutions.