Banking app features for Paycrest
Card controls, instant notifications and biometric login in a regulated mobile banking app. A case study by Ryan Mitchell, Senior Android Engineer (Kotlin).
Challenge
Paycrest, a payments startup, was losing users to competitors with better mobile features. Card freezing and spending notifications were the most requested items in reviews.
Solution
I built card controls, real-time transaction notifications and biometric login with secure storage, working with their security team through threat modelling and penetration testing.