Senior Mobile Team for Encrypted Messaging App

Understage is building a professional messaging app for the theatre, live experience and entertainment sectors. It should be as familiar as the messaging apps people already use, with two big differences: people get a work identity separate from their personal one, and the app properly switches off outside working hours. Nothing breaks through quiet hours, ever. The launch build includes: End to end encrypted one to one and group chats, voice notes, images, documents and one to one audio calls Usernames and QR codes, with phone numbers never shown Production workspaces for 15 to 200 people, with announcements, acknowledgements and wrap Working hours that follow each person’s local time zone, including touring Subscriptions through Apple and Google Play A simple admin panel for reports, suspensions and support The full developer brief can be sent in advance and a working prototype is available to shortlisted applicants. We’re looking for a team or senior developer who has shipped a real chat or messaging app to both app stores. Please send: A fixed price quote, split into launch and phase two A timeline with milestones Your proposed approach to encryption and real time messaging Links to messaging apps you’ve shipped Who will do the work, and their overlap with UK hours Quotes by Monday 30 November 2026.