PayNest

01 — Overview

PayNest wanted a wallet app for young professionals that combines payments, bill reminders and goal-based savings in one place.

02 — Challenge

Strict security and compliance requirements, a fixed regulatory launch date and a need to run smoothly on low-end Android devices.

03 — Solution

We delivered a Flutter app with biometric login, tokenised payments, encrypted local storage and a modular backend that passed an external audit before launch.

04 — Outcome

The app reached 120,000 downloads in six months with a 4.7 store rating, and the security audit closed with zero critical findings.

1. 01Compliance PlanningWeek 1–3Regulatory requirements, threat model and data-flow design agreed with the compliance team.
2. 02Product DesignWeek 3–6
3. 03App & Backend BuildWeek 7–20
4. 04Audit & LaunchWeek 21–24