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ParmarSons

Custom web app development for SaaS, portals & tools.

When spreadsheets and off-the-shelf software stop fitting the way you work, we design and build the web application your business runs on — from a first MVP to a production SaaS platform with authentication, payments, roles and integrations.

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What’s included

Web App Development services

SaaS products & MVPs

From idea to a launched product: architecture, UX, subscriptions and the features that prove the concept.

Client portals

Secure portals where your customers log in to see projects, files, orders and messages.

Internal tools & dashboards

Admin panels, order management and reporting dashboards that replace manual spreadsheet work.

Progressive Web Apps

Installable web apps that work on desktop and mobile from a single codebase.

APIs & integrations

REST APIs and integrations with payment, shipping, CRM, email and AI providers.

Cloud & DevOps

Deployment, CI/CD, backups and monitoring on modern cloud platforms.

How it works

Our Web App Development process

  1. 01

    Scope & architecture

    We map users, workflows and data, then agree a phased plan and tech stack.

  2. 02

    UX & prototypes

    Clickable designs of the key screens, tested with you before building.

  3. 03

    Build in sprints

    Working software every one to two weeks, with demos and feedback.

  4. 04

    Launch & support

    Production deployment, documentation, handover and ongoing improvements.

Why ParmarSons

Why choose us for Web App Development

Tools we use: React, TypeScript, Node.js, Python, FastAPI, Supabase, PostgreSQL, Docker.

  • Products in production

    Our portfolio includes live SaaS, EdTech and AI platforms used every day.

  • Modern, maintainable stack

    TypeScript, React, Python and Postgres — well-documented and easy to hire for later.

  • You own the code

    Code, infrastructure and accounts are yours, with no lock-in.

Related work

Projects we’ve shipped.

All work
RevisionIB — A revision platform with question banks and past papers for IB Diploma students.

RevisionIB

A revision platform with question banks and past papers for IB Diploma students.

Web app
EdTech

AgencyHub — One portal for agency clients, projects, files and messaging.

AgencyHub

One portal for agency clients, projects, files and messaging.

Web app
Agency operations

Nextrend AI — An AI content studio that helps mortgage professionals market themselves.

Nextrend AI

An AI content studio that helps mortgage professionals market themselves.

AI product
Mortgage

LendMatch AI — AI that matches loan officers with the right lender in seconds.

LendMatch AI

AI that matches loan officers with the right lender in seconds.

AI product
Lending

FAQ

Web App Development questions.

It depends on scope. We usually start with a focused first version that solves the core problem, quoted as a fixed price per phase, then grow the product based on real usage.

Most MVPs reach a first usable version in six to ten weeks. Larger platforms are delivered in phases, with working software every sprint.

Typically React and TypeScript on the front end, Node.js or Python (FastAPI) on the back end, and PostgreSQL via Supabase for data, authentication and storage — chosen for speed of development and long-term maintainability.

Yes. We can audit, stabilise, extend or refactor an existing codebase, and take over from a previous developer or agency.

Related services

Where we work

Let’s talk about Web App Development.

Share a few lines about what you need. We reply within one working day with next steps, not a sales script.

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