Web Application Development Services
Our web application development services build client portals, dashboards and internal tools that replace spreadsheets and copy-paste work, in React with Node.js or Python behind them.

The businesses we build, grow and automate for





Eight O Eight
When spreadsheets stop working
Most businesses outgrow spreadsheets and off-the-shelf tools before they notice.
Copy-paste everywhere
Data moves by hand between tools, and mistakes creep in.
Tools that don't fit
Off-the-shelf software forces your process into its shape.
No single view
Customers, orders and reports live in different places.
What our web app development services include
Product, design and engineering in one team.
Discovery
Workflows, users, roles and the data you need.
UX design
Dashboards and forms designed for daily use.
Front end
React or Next.js.
Back end
Node.js or Python APIs and a PostgreSQL database.
Integrations
CRM, payments, accounting and other APIs.
Security
Logins, roles, audit logs and encryption.
Hosting
AWS or Vercel with automated deployments and backups.
Support
Monitoring, fixes and new features.

Custom web application development
Custom web application development builds software around how you already work: client portals, booking and quoting tools, inventory dashboards and admin panels. Everyone uses it in a browser, so there’s nothing to install and no app store fees.
Selling the software to other businesses? See SaaS development, or start smaller with an MVP.
- Client portals and dashboards
- Booking, quoting and inventory tools
- Roles and permissions
- Connections to your tools
Python web development and installable web apps
Our Python web development services use Django or FastAPI, a good fit for data-heavy and AI-powered tools. Our progressive web app development services make a web app installable on phones, with offline support and push notifications, without going through an app store.
- Django and FastAPI
- AI and data-heavy tools
- Installable progressive web apps
- Offline support and push
Who builds your app
Every project is planned and reviewed by our technical co-founder, who has led fintech and AI app development, and built by senior developers who work in English during UK and European hours and part of the US day. You talk to the people building your app, with a shared board and a demo you can try every week or two.
- Technical co-founder on every project
- Native Android (Kotlin) and iOS (Swift)
- Flutter and React Native
- Shared board and regular demos
How we build web apps
Working software you can try on a staging site throughout.
Discover
Workflows, roles and data; fixed scope.
Design
Flows and a clickable prototype.
Build
Sprints with demos on staging.
Launch
Data migration, training and go-live.
Support
Monitoring and new features.

Our app experience
Our co-founder has led development of apps we can’t name publicly. Book a call and we’ll walk you through the work.
Android app for payments, lending, investing and expense tracking, launched in 3 months under our co-founder's technical lead.
Android · India · 3 monthsA conversational generative-AI app, now in development under the same technical lead.
Conversational AI · In developmentcode and IP ownership, in your own repository
Ownershipof free bug fixes after launch
Support
Web application development cost
Fixed-price first releases.
Internal tool
Dashboard or admin tool.
- Logins + roles
- Core workflows
- Reports
- One integration
Client portal
Customer-facing app.
- Everything in Internal tool
- Customer accounts
- Payments
- Notifications
Advanced web app
Complex workflows and integrations.
- Several user types
- Several integrations
- AI features
- Scalable cloud
How much does a web app cost? Our web application development cost is $1,500–$15,000, depending on users, roles, features and integrations. Web app development cost for subscription products is on our SaaS development page. The price is fixed after a free call.
Full guide: web app development cost.

Frequently asked questions
What are web application development services?
Web app or mobile app?
Which technologies do you use?
Let’s talk about your project
Book a free 30-minute call. We’ll look at what you have, tell you honestly what we’d do first, and send a fixed quote.
Or email hello@thryveapex.com · call +91 91002 80101