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Application Development

Application Development

Sometimes an automation isn't enough. That's when we build a full application. From internal tools to a complete SaaS platform, like our own product SiteLens.

Result
From idea to working platform
Custom web apps
Database & backend
Payments & subscriptions
User management
What's included

Everything included

No hidden costs, it's all included as standard.

Custom web apps

Fully custom-built applications with React, TypeScript and a modern, fast interface.

Database & backend

Robust backend architecture with Supabase, including authentication, permissions and secured data.

Payments & subscriptions

Stripe integration for subscriptions, invoicing and checkout, fully automated.

User management

Roles, teams and (white-label) client portals, so your application can be used by customers or colleagues too.

Scalable architecture

Built on Vercel and Supabase, so your platform grows without a rebuild.

Our own proof: SiteLens

We built our own SaaS product, SiteLens, using the exact same approach we use for clients.

From internal tool to full platform

Not every process fits into a background automation. As soon as clients or colleagues need to log in themselves, enter data, or need their own overview, an application is the better choice. Think of a client portal, an internal planning tool, or a full platform you sell to others.

We build in short sprints, so you have a working first version in hand within a few weeks instead of waiting months for a 'big bang' delivery. We process feedback straight into the next sprint, so the end result matches how you and your users actually work with it.

SiteLens is proof to us that this approach works: from first sketch to a paid product with real customers, built using the same architecture we use for clients. We bring that experience straight into every new project.

Reviews

What clients say

CRM, webshop and email fully connected through Make.com. Runs flawlessly, and the collaboration was great.
SB
Sanne Bakker
Marketing manager, e-commerce
Thomas added a sales module to my website. I'm really happy with his work and would definitely recommend him. He takes the time to explain things and communicates quickly and pleasantly.
ML
Milou L.
Google review
Responds quickly, understands exactly what I mean, and adjusts things right away when needed. Very satisfied.
EH
Elianne Heiblom
Google review
FAQ

Frequently asked questions

As soon as your process needs its own interface, user accounts, or a place where clients or colleagues work directly, an application is the better choice over a background automation.
Yes. Our own product SiteLens is the best proof of that: a full platform with dashboard, client portal, payments and automated emails.
Usually React and TypeScript on the front end, and Supabase (Postgres, Auth, Edge Functions) on the back end, with Stripe for payments and Vercel for hosting.
Yes. We connect the application to your CRM, accounting or other systems via APIs by default, just like with our automations and integrations.
A first working version is usually ready within 4 to 8 weeks, depending on scope. We work in short sprints so you see progress fast.
Free introductory call

Ready to save time?

Book a free call. We'll look together at which processes we can automate and how many hours that saves you. No strings attached.

Book a callthomas@ctrlsync.nl

No strings attached, just a good conversation

Applicatie Ontwikkeling — CtrlSync