Technology for ideas worth building.

Hycyon builds software, digital products and intelligent experiences — custom work for clients, and products we make ourselves.

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Live today: eBook Pro BrainSpark

What Hycyon is

We build in two directions.

For the world

Software and digital experiences for clients.

Websites, applications and intelligent systems, built around what you actually need.

See services

For ourselves

Products, experiments and technology of our own.

Software we design, ship and maintain under the Hycyon name.

See products

Products

Products by Hycyon

Software we designed, built and run ourselves. Every product shows its real status — nothing is listed as launched until it is.

LiveReading & learning

eBook Pro

A Hycyon product · Web · Android

A reader for people who study what they read. Open your own PDF, EPUB and text files, then highlight, annotate, translate and turn passages into notes and flashcards.

PDF, EPUB and TXT reading with page-turn animation
On-device OCR for scanned pages (English and Hindi)
Translation between English, Hindi and about 28 other languages
Notes, flashcards with spaced repetition, and research workspaces

Explore eBook Pro Open the app

Web app available · Android release in preparation

LiveExam preparation

BrainSpark

A Hycyon product · Web

An AI-assisted exam preparation platform. Build multi-topic mock tests, review every answer, and ask an AI tutor to explain what you got wrong.

Mock exams generated from your topics, difficulty and time limit
AI tutor and doubt solver on every question
Offline practice and daily reminders
English and Hindi interface

Explore BrainSpark

Version 1.0

Coming later

The next one

Hycyon is building continuously. New products appear here when they are real.

Services

Built for your ideas. Built for your business.

The same team that ships Hycyon's own products builds yours.

Websites

Fast, clear sites for businesses, creators and organisations — designed to be found and easy to trust.

Web Applications

Accounts, dashboards and workflows that turn a process into a product people use daily.

Mobile Applications

Android and iOS apps, from first prototype to a backend-powered release.

Custom Software

Tools shaped around how you actually work, when nothing off the shelf fits.

AI & Intelligent Systems

Assistants, document Q&A and AI features built into products with the keys kept server-side.

Product Development

From concept to a shipped product — the way we build our own.

Automation & Integrations

Browser extensions, APIs and connectors that remove repetitive work.

Need something specific?

Explore the complete Hycyon catalogue to see services, deliverables, packages and pricing.

Open Catalogue

Why Hycyon

Client work, held to a product standard.

Build and product

Hycyon does not only build for clients. It ships its own products, so client work is held to a product standard.

Engineering and design

Technology and the experience of using it are decided together, not handed from one team to the next.

Product thinking

The goal is not to deliver code. The goal is to build something useful to the person using it.

Technical depth

Web, mobile, backend, on-device machine learning and AI — within one codebase and one team.

Continuous experimentation

Products evolve through experiments, and the experiments are allowed to be unusual.

Engineering

See what's under the hood.

Hycyon is built by engineers who don't stop at the interface. The engineering portfolio shows the projects, the code and the thinking behind them.

Explore the engineering portfolio

From interface to infrastructure.

Web: Static-first sites and web apps, Tailwind and vanilla HTML/CSS/JS, zero-dependency builds.
Mobile: Flutter and Dart apps for Android and iOS, with offline-first libraries and local notifications.
Backend: Node.js on Firebase Cloud Functions (2nd gen), callable APIs, Firebase Auth.
AI: Google Gemini behind a serverless proxy, retrieval-style summaries, AI tutoring flows.
Data: Firestore with security rules and indexes, conflict-preserving sync across devices.
Infrastructure: Firebase Hosting, GitHub Pages, Google Cloud Secret Manager for credentials.
Native: Swift, SwiftUI and CoreData on iOS, including a custom keyboard extension.
Product architecture: On-device OCR and translation with Google ML Kit, spaced-repetition scheduling, a single source of truth per product.

The Lab

Exploring what's next.

Where unusual ideas live without being mistaken for commercial products.

Artificial intelligence
Language technology
Education
Productivity
Developer tools
Experimental interfaces

Product

VaakBoard

A native iOS keyboard for Sanskrit: IAST transliteration, phonetic input mapped to Devanāgarī, and an offline lexicon. Written in Swift around a custom trie engine. Live on the App Store.

See how it was built

Experiment: An idea tried to see what happens.
Prototype: Works well enough to test with people.
Research: Understanding before building.
Product: Shipped, supported and maintained.

About

Why Hycyon exists.

Technology is a tool for turning ideas into things people can actually use.

Hycyon exists to build useful software, create products people return to, explore technology without a deadline, and solve real problems — whether they are ours or yours.

Based in Varanasi, India, Hycyon is young and building continuously. What it has built so far is the proof: two live products and the engineering behind them.

The builder

Abhishek Sharma

Founder · Engineer · Product Builder

Built by an engineer who cares about the details. Abhishek works across the stack — Flutter and Firebase, Swift on iOS, the web — and studies Sanskrit and Vedic literature alongside computer science.

That intersection of language and computation produced VaakBoard, a native Sanskrit keyboard for iOS, and it shapes how Hycyon thinks about products: precise, unconventional where it matters, useful first.

Meet the builder LinkedIn

Have something worth building?

Tell us what you're imagining. We'll help turn the idea into something real.

Start a Project hycyon.hq@gmail.com