Fintech & Investment App Development

Money apps are judged on accuracy and trust before features. I have built mutual fund investing with live NAV data and portfolio maths, plus an insurance platform covering quotes and claims.

In fintech the hard parts are invisible: resumable KYC, exact portfolio arithmetic, payment states that can fail halfway, and data that must be current without making every screen wait on the network.

What you get

Investment & SIP flows

Fund discovery, SIP setup and mandates, portfolio tracking with live NAV reconciliation.

KYC onboarding

Resumable, step-wise verification so drop-offs return where they left instead of restarting.

Payments

Gateway and mandate integration with honest, recoverable failure states.

Charts & reporting

Interactive performance charts that stay readable and fast on a phone.

How the work runs

  1. 01

    Data contract review

    What your fund, NAV or policy APIs actually return, and how fresh it has to be.

  2. 02

    Flow design

    Onboarding, KYC and payment journeys mapped as state machines before UI.

  3. 03

    Build & reconcile

    Optimistic UI with background reconciliation so screens are instant but never wrong.

  4. 04

    Launch & monitor

    Crash and failure monitoring on the money paths specifically.

Proof, not promises

Fintech App Development FAQ

SipFund, a mutual fund and SIP investment app with 1 lakh+ downloads and 3,300+ reviews at 4.0★, and SimpliInsure, an insurance platform covering policy comparison, instant quotes and claim management.

Yes. Payment and SIP mandate flows are built as explicit state machines, because a mandate that half-registered is worse than one that never started. Failure states are recoverable and visible to the user.

Cached data renders immediately, then reconciles against live NAV APIs in the background. The user never stares at a spinner, and the numbers settle to the authoritative values within moments.

Need fintech app development?

Tell me what you have in mind and I will come back within 24 hours with an honest read on scope, timeline and cost.