Custom web application development
Sometimes the workflow you need falls outside any CRM or ERP: a Section 138 case manager that auto-computes statutory deadlines under the Negotiable Instruments Act, a partner-distribution split engine for a 14-product range, or a court bundle generator that converts 400 PDF pages into a single indexed file in 30 seconds.
What's included in Custom web apps.
We build these as full, standalone applications. Each one starts with a requirement study: we sit with the people doing the work today, document every rule and exception, and agree the scope in writing before design begins.
Companies whose primary workflow is too specific for a generic CRM or ERP: legal practices, distributors with multi-product splits, niche manufacturers, regulated firms with statutory deadlines, internal IT teams who've already failed at one no-code attempt.
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Full-code engineering
Typed APIs, schema-tracked migrations, structured logs, automated tests on critical paths, and a deploy pipeline you can actually inspect.
- 02
Modern UI
Tailwind + shadcn-style components, accessible by default, keyboard-navigable, dark-mode ready. The kind of app a 25-year-old joiner will not roll their eyes at.
- 03
Domain logic where it belongs
Business rules live in pure, testable functions in the API layer, kept out of stored procedures and no-code formulas. Easy to extend, easy to audit.
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Built from the agreed requirements
Every screen, field, and business rule traces back to the requirement document your team signed off, so it's always clear why the app behaves the way it does.
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Sensible auth
Microsoft 365 / Google SSO, role-based access, audit log, optional 2FA. We don't ship the same demo auth twice. Every project re-uses a hardened library.
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Observability
Structured logs to BetterStack or your provider, error tracking on Sentry, a basic latency dashboard, and email alerts on anything that breaks at 2am.
From a specialist spreadsheet to a purpose-built app.
Capture the domain rules
We sit with the people who carry the process today and write down every rule, calculation and exception, including the ones that exist only in one person’s head or inside a colleague’s spreadsheet formulas. That requirement document is agreed in writing before any screen is drawn.
Design, build, test
We turn each agreed rule into tested business logic in the API layer, then design the screens around the order in which your team actually works. Every field traces back to the requirement document, and we review working screens with your users as they take shape.
Launch and monitor
We migrate existing records, train each role, and switch on error tracking and alerts before the app goes live. Once people rely on it, we watch the logs, fix whatever surfaces, and extend the app as the process underneath it changes.
Clients we built this for.
Section 138 case management software
Auto-computed statutory deadlines, audit logs, Power Automate integration. Zero missed deadlines in 14 months.
Read the case study Case studyLaw-firm ERP with Copilot Studio bot
Matter management + four-step invoice approval + GST billing across 800+ active matters.
Read the case studyQuestions about Custom web apps.
- Can a custom web app replace the spreadsheets and paper files behind a specialist process?
- Yes, when the workflow is too specific for a generic CRM or ERP. For a manufacturing distributor we built a Section 138 case manager that computes statutory deadlines under the Negotiable Instruments Act from the cheque return date and escalates them before they close. It has run for 14 months with zero missed deadlines. Rules that used to live in one person's attention now live in tested code with an audit log.
- Can a custom web app connect to Microsoft 365, Tally, or Razorpay?
- Yes. Sign-in usually runs through Microsoft 365 or Google SSO, with role-based access and an audit log. Connections to Tally, SAP Business One, Razorpay, GSTN, or WhatsApp Business are built into the app's API layer with retries and logging, so a failed sync is visible instead of silent. Our Section 138 case manager, for example, includes a Power Automate integration. Every integration is listed in the agreed scope.
- What is a requirement study, and why do you run one before designing a custom app?
- It is the first stage of every build. We sit with the people doing the work today, document every rule, exception, and approval, and agree that scope in writing before design begins. Every screen, field, and business rule in the finished app traces back to that signed-off document, so it is always clear why the app behaves the way it does. Timeline and cost are quoted against it.
- Who looks after a custom web app once it is live?
- We stay on after launch. Every app ships with structured logs, error tracking on Sentry, a basic latency dashboard, and email alerts when something breaks, so problems surface before users report them. Before go-live we test with your team, migrate existing records, and run role-based training. After go-live, a monthly maintenance retainer covers bug fixes, small features, performance tuning, and security patches.
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Tell us what's slowing you down.
A 30-minute discovery call. We map the process, point out the easy wins, and outline a clear plan (no obligation).