Blockchain & crypto apps
Blockchain features, built with security first.
When a product genuinely needs blockchain, we build it carefully: wallets, token and payment integrations, and the web and mobile apps around them. We built a crypto wallet app for OptaGlobal, and we will also tell you honestly when a normal database is the better answer.
Who you work with
A small, senior-led team
Our own engineers, working with AI agents
- Led by our founder, Nikhil Narayan
- Building for US clients since 2005
- NDA and IP assignment as standard
- Overlap with your business hours
What you get
The work, end to end.
You own the code, the designs and the accounts.

- Crypto wallet apps
- Token and smart-contract integrations
- Payment and on-ramp integrations
- Web and mobile apps around the chain
- Security reviews of keys, flows and permissions
Who it's for
Where this pays off.
Fintech
A wallet or payments feature inside your app.
Communities
Token-based access or rewards.
Existing products
Add a blockchain feature without rebuilding the product.
Proof
We've done this before.
Real projects, for real clients.
OptaGlobal
A crypto wallet app.
Tools we use
The tools behind the work.
- Ethereum and EVM chains
- Solidity
- Web3 libraries
- Flutter
- Node.js
Next step
Let's talk about Blockchain & crypto apps.
Email us and our founder replies personally, with a free 30-minute Zoom call if it helps. Honest advice, a rough plan and a quote, with no obligation.