Web app development for SaaS products, portals and dashboards
Kwebby builds browser-based software for startups and growing businesses: SaaS products, customer portals, internal dashboards and booking systems. You get a fixed quote, milestone previews and 100% ownership of the code.
Calls in US hours: Mon–Fri, 9 AM – 6 PM ET
Starting price
50% off first projectfrom$2,499
The $2,499 starting price covers a web app with user accounts, up to 5 core screens, a database and an admin panel.
- Typical timeline
- 4–12 weeks
- Payments
- 10% · 40% · 50%
- Code ownership
- 100% yours
- 1,200+ jobs done
- Cheapest industry rates
- Faster delivery
- You own 100% of the code
What you get
Web apps built for results
SaaS products
Multi-tenant apps with sign-up, subscription billing, team accounts and usage limits.
Customer portals
Secure areas where clients log in to view orders, invoices, files or project status.
Internal tools and dashboards
Apps that replace spreadsheets for jobs, inventory, leads, approvals and reporting.
APIs and integrations
Connections to Stripe, HubSpot, QuickBooks, Google Workspace, Slack or any tool with an API.
Roles and permissions
Role-based access, so staff, managers and customers each see only their own data.
Hosting and monitoring
Deployments on Vercel or AWS with automated backups, uptime checks and error alerts.
How it works
Three steps from call to launch
- 1
Free call and fixed quote
Book a free call during US hours (Mon–Fri, 9 AM – 6 PM ET). Kwebby maps your users, data and workflows, then sends a fixed quote with milestones.
- 2
Build in working milestones
You pay 10% to start. Kwebby ships each milestone to a live preview link in your client portal, where you click through real screens before you approve. The 40% payment is due at the midway milestone.
- 3
Launch and handover
Kwebby deploys the app to your hosting account, imports any starting data and hands over the code, database and documentation. You pay the final 50% on delivery and own 100% of the code.
Proof
1,200+ jobs done for clients across the US and worldwide
Ask for examples from your industry on the free call. We share live sites, app store links and references that match your project.
What web app development covers
Web app development builds software that runs in a browser and lets users log in, save data and complete tasks. A website shares information, while a web app does work: it books appointments, tracks orders, sends invoices or runs reports.
Kwebby builds web apps with React, Next.js, TypeScript and Node.js, backed by a PostgreSQL database. The same codebase works on desktops, tablets and phones without an app store download.
A typical project includes user accounts, the core screens, an admin panel, email notifications and the integrations your team needs. Kwebby scopes each part in your fixed quote.
Custom web application development vs off-the-shelf software
Off-the-shelf tools fit common tasks, but they force your team into someone else's workflow. Monthly per-user fees also grow as your team grows.
Custom web application development gives you software that matches your process exactly. You own the code, you control the data and you add features when your business needs them.
Custom software makes sense when you pay for several tools that do not talk to each other, when spreadsheets run a key process or when your workflow gives you an edge over competitors. Kwebby will tell you on the first call if an existing tool already solves your problem.
What to expect from a SaaS development company
A SaaS product needs more than its core features. It needs sign-up and onboarding, subscription billing, team accounts, permissions and an admin view for your support team.
As a SaaS development company, Kwebby builds these foundations first, so your product can charge customers from launch day. Kwebby uses Stripe Billing for plans, trials, coupons and invoices.
- Multi-tenant data model with a separate workspace for each customer
- Email and social login with optional two-factor authentication
- Subscription plans, free trials and usage-based billing
- Admin dashboard for support, refunds and account changes
- Product analytics to track activation and retention
Why Kwebby works as a React development company
Kwebby works as a React development company because React powers fast, interactive interfaces that users already know from the apps they use every day. React also has a large ecosystem of tested libraries, which shortens build time.
Next.js adds server rendering, routing and API routes on top of React. TypeScript catches errors before they reach users, and it makes the codebase easier for any future developer to read.
The same React skills carry over to React Native. If you want a mobile app later, Kwebby can share business logic and API code between your web app and your iOS and Android apps.
Security and performance in every web app
Every Kwebby web app ships with security basics in place. Passwords are hashed, sessions are protected, data travels over HTTPS and the server validates all user input.
Kwebby adds rate limiting, role-based access and automated database backups. Error tracking with Sentry alerts the team when something breaks, often before users report it.
Performance work includes database indexing, caching with Redis and image optimization. These steps keep pages fast as your user count and data grow.
Tech we use
Frequently asked questions
How much does web app development cost?
Kwebby web apps start at $2,499 for user accounts, up to 5 core screens, a database and an admin panel. SaaS products with billing, teams and integrations cost more. You get a fixed quote after a free call.
How long does it take to build a SaaS product?
A first SaaS version usually takes 4–12 weeks, depending on features and integrations. Kwebby recommends launching with the core workflow and billing, then adding features based on customer feedback.
What is the difference between a website and a web app?
A website mainly presents information, such as services, prices and contact details. A web app lets users log in, enter data and complete tasks, such as booking, ordering or reporting. Many businesses run both on the same domain.
Can you add subscription billing?
Yes. Kwebby connects Stripe Billing for monthly and annual plans, free trials, coupons, invoices and failed payment emails. Customers manage their own plan on a self-service billing page.
Do I own the code and the database?
Yes. You own 100% of the code and all data. Kwebby deploys the app to hosting accounts in your name and hands over the repository and documentation at delivery.
Can my web app handle more users later?
Yes. Kwebby uses an efficient database design, caching and cloud hosting that can add capacity as traffic grows. Most growth needs a bigger hosting plan, not a rebuild.
Can you build a mobile app from the same backend?
Yes. Kwebby builds the backend as an API, so a React Native app for iOS and Android can use the same data and user accounts later.
Get a fixed quote in one business day
Tell us what you need. You get a fixed price, a milestone plan and a client portal to follow the work. Pay 10% to start, 40% at the midpoint and 50% on delivery.
Calls in US hours: Mon–Fri, 9 AM – 6 PM ET