“We needed an order and inventory system our reps could use on their phones across the island. 21 Dimensions delivered in six weeks and stayed with us through every rough edge. It just works.”
Software Consultancy · Colombo, Sri Lanka
21 Dimensions is a three-person software studio in Sri Lanka. We design, build, and maintain custom web and mobile applications — accelerated by AI, and delivered by the same engineers you actually talk to.
Custom software, end to end. We take a problem, scope it honestly, and build something that fits — then we stay on to keep it running.
Web and mobile applications shaped around how your business actually works, not an off-the-shelf compromise.
Practical AI where it earns its place: automating manual work, summarizing data, and adding search, chat, and document processing to the tools you already use.
Fast, responsive web apps and internal dashboards built on a modern, maintainable stack.
Cross-platform apps for Android and iOS, designed for real Sri Lankan networks and devices.
Connecting payment gateways like PayHere and Stripe, messaging, and the systems you already run.
We don't disappear after launch. Updates, fixes, and steady improvements.
21 Dimensions started the way a lot of good software does — a few engineers solving real problems for people they knew. Since then we've built order systems, booking platforms, and internal tools for businesses around Sri Lanka, mostly through word of mouth.
We're three people. That means no layers, no handoffs, and no one standing between you and the engineers writing your code. It also means we lean hard on modern AI tooling to do the work of a larger team — prototyping in days, shipping in weeks, and keeping our pricing honest.
We learn your problem and scope it properly. You get a fixed quote in LKR before anything starts.
Wireframes and a clickable direction, so you see it before we build it.
We write the software, using AI tooling to move faster — with an engineer reviewing every line.
We deploy, test, and hand over cleanly. No lock-in.
We stay on after launch and keep things running.
Modern tooling lets three of us deliver like a larger team: faster, and for less.
LKR pricing, local payment gateways, support in Sinhala, Tamil, and English, and apps tuned for local networks and devices.
Founder-led and direct. No account managers, no telephone game.
You know the cost before we start.
Not just in how we work. We build AI features your customers actually use.
“We needed an order and inventory system our reps could use on their phones across the island. 21 Dimensions delivered in six weeks and stayed with us through every rough edge. It just works.”
“They rebuilt our appointment booking from scratch and added local SMS reminders. No-shows dropped, and they were refreshingly honest about timelines.”
“What stood out was the speed. They prototyped in days, and we could see progress the whole way through.”
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