Built byDigital Axiom LLC·
Live demo · Full-stack web app

Need a web app built?
Here's a live example.

A full-stack financial SaaS — invoicing, auto-categorized bank expenses, AI insights, and cash flow forecasting. Most invoice tools show what you're owed. This one shows what you're worth.

No signup. Click in, explore everything — auth, payments, and bank sync are all live.

saas-demo-kappa.vercel.app/dashboard
Open live
Ax
Axiom
Overview
Settings

Good morning, John 👋

Here's what's happening with your finances.

New invoice ↗

Total Revenue

$15,500

+18% vs last month

Outstanding

$3,800

2 invoices

Avg Invoice

$5,167

Paid only

Revenue overview · Last 6 months

J
F
M
A
M
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Bank sync

Chase · via Plaid
+$4,800
-$54.99
+$7,500

What's inside the demo

Log in and try each one — no real account or card needed, everything runs in test mode.

01

Enter the dashboard — no signup

Dashboard

Hit 'Try demo' and you're inside instantly. AI insights, a 9-month revenue forecast, outstanding invoices, and estimated profit margin — all on the first screen.

02

Create an invoice and track it

Invoicing

Add a client, line items, and tax — the invoice appears in your table, revenue stats update live, and the client auto-populates in the Clients tab.

03

Sync a bank and see your expenses

Bank sync

Pick any bank from the list — credentials are pre-filled. 47 transactions sync instantly and auto-categorize into Software, Travel, Office, and Transport. Your margin updates on the overview.

04

Test the Stripe billing flow

Stripe

Open Stripe Checkout with the test card. The payment completes, the plan upgrades, and the billing portal becomes available — full subscription lifecycle, end to end.

Test card: 4242 4242 4242 4242

Technologies we work with

Every integration in this demo is fully wired — no mocks, no stubs, no placeholders.

Next.js 14

App Router, server components, API routes

NextAuth

JWT sessions, credentials provider, protected routes

Stripe

Subscription billing, checkout flows, customer billing portal

Plaid

Bank account connection and live transaction sync

Prisma + SQLite

Database layer — stores users, subscriptions, and transactions

TypeScript

Fully typed — APIs, components, DB models

What we build for clients

If you need something built,
we've probably built it before.

This demo took 2 days to ship. Most clients come to us with more focused scope — a billing flow, a dashboard, an API integration. We work fast, communicate clearly, and deliver production-ready code.

  • SaaS applications with auth, billing & subscriptions
  • Payment integrations — Stripe, ACH, invoicing flows
  • Bank & financial data pipelines via Plaid
  • Admin dashboards with real-time data
  • Backend APIs that connect your app to any data source
  • Full deployment pipelines on Vercel / AWS