Hi,
Greetings,
android expert here and have Associate Graphics/UI/UX designer and front-end developer to fix REST API webservices and back-end as needed.
let me review existing app and screenwise changes you want within then I'll come up with exact estimation on cost and time for its execution.
so far we have delivered uber clone, ecommerce, education, food delivery, vehicle tracking, user-tracking and social media apps in the past and about to launch instagram clone with messaging/animated emojis and photo/video upload with audio file and sharing, multiple message etc means many other features than instagram with back-end to manage the app users, posts etc hence assure you to deliver your app with quality within agreed time so rest assured for getting the job done.
We never demand any upfront payment, only milestone payments get paid on you satisfy with the work done for a particular milestone.
lets begin from there now.
sincere to have your kind response in favor.
Thanks