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Recently working on implementing a UPI payment module in FinTech iOS app (JUMPP)
On the surface, payments seem like a small part of the app.
In reality, it’s one of the most critical because it directly affects trust with the App.
While creating such App, The experience should be feel controlled for its user within the application while still handling real transaction states in the background.
That changes the complexity completely. Because now it’s not just about triggering a payment it’s about managing what happens before, during, and after the transaction.
My focus during this work wasn’t just “adding UPI” it was making sure the flow actually works in real-world usage.
This involved:
• Handling smooth app-switch flow between UPI apps, government and bank rails and the iOS app
• Managing different transaction states with records across the switches (success, pending, failed)
During the development of such a vast module; One thing became very clear:
Even small inconsistencies here can lead to failed transactions or lost users.
I’ll be sharing a few specific challenges and patterns I noticed while working on this especially around where UPI flows tend to break in real-world
Keep connecting for series of UPI with me.
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