I am taking the learnings of okcredit, khatabook (digital ledger in India), bijak, procol (trading in India), choco, rekki (restaurant ordering from their suppliers) to what I believe is the final consequence of an integrated chat app to run small businesses.

I used MessageBird for sms notification of new messages, SendGrid for email and Firebase Auth for login.

Everything is run on Google App Engine.

Thanks for the info! Really super interesting to hear about your sources of inspiration for this is India.

I think you're onto something with a chat app UX for small businesses!