We design, build, and operate subscription-ready SaaS platforms — scalable cloud software your clients access instantly, from any device, with zero infrastructure headaches.
Software as a Service means your product lives in the cloud and is accessed through a browser or app — no installation, no version management, no server rooms. Your clients subscribe, log in, and immediately have the latest version of your platform.
At Casterly Crown, we build SaaS products from scratch — the architecture, the multi-tenant engine, the billing layer, the admin portal, and the customer-facing application — all under one roof, end to end.
See what we buildEnd-to-end SaaS development across verticals
Multi-tenant CRM platforms with pipeline management, customer profiles, activity tracking, and automated follow-up sequences — accessible by your entire sales team from day one.
Cloud-hosted HR suites covering employee onboarding, leave management, payroll integration, performance reviews, and org-chart management — used across multiple branches from a single login.
Real-time stock management, purchase orders, supplier portals, and financial reporting — all on a single cloud platform accessible by warehouse, finance, and management simultaneously.
Subscription management platforms with tiered pricing, automated invoicing, payment gateway integration, trial periods, and real-time revenue analytics — the financial backbone for any SaaS business.
Our own Customer Satisfaction Survey product is a living example — a cloud SaaS platform that collects, analyses, and reports on customer feedback in real time, deployed for enterprises across Sri Lanka.
Business intelligence platforms that pull data from multiple sources, surface KPIs in real-time dashboards, and deliver scheduled reports to decision-makers — without touching a spreadsheet.
Every SaaS product we build follows a layered, cloud-native architecture — designed to be secure, scalable, and maintainable from day one rather than retrofitted later.
Your clients never touch a server. We host, manage, and scale everything — they just pay a subscription and use the product.
Every user is always on the latest version. Push an update once — every tenant gets it instantly, with zero downtime.
Add a thousand users tomorrow morning. Cloud auto-scaling handles the load without any manual infrastructure work.
Subscription billing creates Monthly Recurring Revenue — the most valuable metric for a software business and investors alike.
Browser, phone, tablet — your platform works on any device, anywhere in the world, with a secure login.
Tenant data isolation, encrypted storage, regular security audits, and compliance-ready infrastructure from day one.
Subscription structures we build and support
Typically 10 – 20 weeks from kickoff to launch
We define your target users, core feature set, monetisation model, and go-to-market plan — before a single line of code.
Multi-tenant data model, API design, infrastructure plan, and security architecture — all documented and reviewed before build begins.
Core features built in agile sprints with weekly demos. Ship a real, usable product fast — then iterate based on real user feedback.
Payment gateway integration, subscription management, automated onboarding flows, and email sequences — the commercial layer built and tested.
Go live on AWS with full monitoring, CI/CD pipelines, and a hypercare period — then scale features and infrastructure as your user base grows.
Battle-tested tools for production cloud software
Whether you have a fully-formed product vision or just a problem worth solving — let's talk. We'll help you define the right scope, the right architecture, and the right commercial model to make it viable.