[ Regulated, reconciled and fast enough to trust ]

MARKET DATA,ORDERS,and an audit trail.

Stock Trading App Development

Trading and investment applications built on a broker's infrastructure — live data, order placement, portfolio and reporting. The regulatory and reconciliation obligations shape the build more than any interface decision.

Stock Trading App

Trading and investment applications built on a broker's infrastructure — live data, order placement, portfolio and reporting. The regulatory and reconciliation obligations shape the build more than any interface decision.

Tell us whose broking licence this sits on

[ Technologies We Use ]

Node & GoReact NativeWebSocketsTimescaleDBBroker & exchange APIsRedisKYC & eSignAudit logging

[ What You Get ]

Built on a licensed broker

We build the application; the broking licence, exchange membership and clearing are yours or your partner's. That boundary is stated at the start of every engagement.

Market data that stays live

WebSocket streaming with reconnection, backfill on resume and throttling by visible symbols. A stale price is worse than a missing one.

Orders with a state machine

Placed, acknowledged, partially filled, filled, rejected, cancelled — every transition recorded. Ambiguity about an order state is unacceptable.

Reconciled against the broker

Positions, holdings and ledger reconciled daily against contract notes. The app must never disagree with the official record.

[ Platforms & tech ]

What we build.

Trading Application

Watchlists, charts, order placement and portfolio on mobile and web, with streaming data and an order flow that is unambiguous under pressure.

  • Watchlists & charts
  • Order placement
  • Live positions
  • Order history
  • Alerts

Onboarding & KYC

The account opening funnel — PAN and Aadhaar, verification, bank and demat linkage, risk profiling and eSign, with drop-off measured at each step.

  • PAN & Aadhaar KYC
  • Video / in-person verification
  • Bank & demat linkage
  • Risk profiling
  • eSign

Portfolio & Reporting

Holdings, realised and unrealised P&L, contract notes, capital gains statements and the tax reports users need at year end.

  • Holdings & P&L
  • Contract notes
  • Capital gains
  • Ledger & statements
  • Daily reconciliation

[ Our Process ]

From strategy to growth.

Step 01

Establish the regulatory boundary

Whose licence, which exchange memberships, who holds funds and securities, and what the app is permitted to do. This is settled before design.

LicensingScopeResponsibilities
Step 02

Design onboarding

KYC with PAN and Aadhaar, in-person verification where required, bank and demat linkage, risk profiling and eSign — the longest funnel in the product.

KYC & eSignBank & dematRisk profiling
Step 03

Build the data layer

Streaming quotes, historical candles and corporate actions, with reconnection and backfill so a dropped connection does not leave stale prices.

Streaming quotesHistorical dataCorporate actions
Step 04

Build order management

Order types, margin and risk checks before submission, the full state machine, and a rejection path that tells the user something useful.

Order typesPre-trade checksState machine
Step 05

Portfolio and reporting

Holdings, P&L realised and unrealised, contract notes, capital gains statements and the tax reporting users ask for every March.

Holdings & P&LContract notesCapital gains
Step 06

Reconcile and monitor

Daily reconciliation against broker records, latency and error monitoring, and an audit trail for every order and every change to it.

Daily reconciliationLatency monitoringAudit trail

[ Overview ]

A trading application is a regulated product with a user interface attached. Before any design work, the boundary has to be clear: whose broking licence, which exchange memberships, who holds client funds and securities, and what the software is permitted to do. We build the application — we are not a broker and do not hold licences.

Within that boundary the engineering priorities are unusual. Correctness beats features, an order's state must never be ambiguous, prices must be live or visibly stale, and the app must reconcile with the broker's official record every day. Users forgive a plain interface; they do not forgive a position that disagrees with their contract note.

[ In Detail ]

The licence boundary is stated first

We build software. Broking, clearing and custody are yours or your partner's, and that is agreed in writing before design starts.

Order state is never ambiguous

A full state machine with every transition recorded. "I do not know whether my order went through" is the worst failure this product can have.

Reconcile daily, not monthly

Positions, holdings and ledger checked against broker records every day. A discrepancy found a month later is a discrepancy nobody can explain.

[ What has changed ]

Trading App in 2026.

01

Discount broking set the interface expectation

Users now expect instant onboarding, clean charts and low friction. A functional but dated interface loses accounts regardless of pricing.

02

Regulation tightened on client funds and reporting

Segregation rules, upstreaming and daily reporting obligations have increased what the platform must produce and record.

03

Smallcase-style baskets became mainstream

Users increasingly want thematic baskets and SIPs in equities rather than only single stock orders, which changes the order and portfolio model.

[ FAQs ]

Questions, answered.

No. We build the application; the broking licence, exchange membership and clearing arrangements are yours or your partner broker's. Most of our clients here are either existing brokers modernising their platform or fintechs building on a partner broker's infrastructure, and we agree that boundary in writing before starting.

Ready to tell us whose broking licence this sits on?

Let’s talk about your trading app project. No obligation, just a conversation.