{ }While Loop.HK Limited
AI engineering meets imagination

We build AI, web & mobile apps — and dream up stories for kids.

While Loop HK Limited is a Hong Kong studio shipping production-grade software and playful, AI-generated children's books and animation. One team, endless loops of ideas.

Start a projectSee our work
AI-first
engineering
Web & mobile
apps
Story-driven
creative
Illustration blending app interfaces and code with whimsical storybook characters

What we do

Software that performs. Stories that delight.

We pair serious engineering with a creative studio mindset, so the same team can ship your platform and bring your characters to life.

AI Applications

LLM-powered products, chat assistants, RAG pipelines, and intelligent automations built on the latest models and the Vercel AI SDK.

  • Custom AI agents & copilots
  • RAG & semantic search
  • Model integration & evals

Web & Mobile Apps

Custom websites and mobile apps built end to end — fast, secure, and easy to use, from the first screen to launch on the App Store and web.

  • Websites & web apps
  • iOS & Android apps
  • Secure logins, payments & data

AI Children's Books

Personalized, beautifully illustrated storybooks generated with AI — from concept and characters to print-ready pages.

  • Original stories & characters
  • Consistent illustration style
  • Print & digital ready

Animation

Charming animated shorts and character animation crafted with AI-assisted pipelines for brands, education, and entertainment.

  • Character design
  • Animated shorts & explainers
  • Voice & sound design

What we're building

A loop of apps, books & animation

We're a new studio with our first projects underway. Here's a look at what we're creating — and the kind of work we'd love to do with you.

AI Analytics AssistantAI ApplicationIn development

AI Analytics Assistant

A SaaS analytics tool with a built-in AI assistant that turns raw data into plain-language answers.

Booking & Commerce PlatformWeb & Mobile AppIn development

Booking & Commerce Platform

A website and mobile app with online payments, member logins, and a live dashboard for the owner.

The Forest Friends SeriesChildren's BookComing soon

The Forest Friends Series

A personalized, AI-illustrated picture book series with consistent characters across every page.

Bolt the Robot — Short FilmAnimationComing soon

Bolt the Robot — Short Film

A cheerful animated short combining AI-assisted character design with hand-tuned motion.

About us

A Hong Kong studio living in an endless while loop of ideas.

While Loop HK Limited is a creative technology studio built on a simple belief: the best technology feels a little magical. We combine AI with web and mobile app development and a storyteller's imagination to build software people love — and stories children remember.

Whether you need a robust AI platform or a warm, illustrated adventure, we bring the same care, curiosity, and craft to every loop.

Founded by Rongna Huang, a full-stack developer who pairs hands-on engineering with AI to ship products faster. That means no account managers and no handoffs — you work directly with the person building your product.

Rongna Huang — Founder & Full-Stack Developer

Ship fast, ship right

We move quickly without cutting corners on quality, security, or performance.

Engineering + craft

Rare mix of technical depth and creative taste under one roof.

True partners

We work as an extension of your team, from first idea to launch and beyond.

Let's build something worth looping.

Tell us about your app idea, story, or animation. We'll get back to you within one business day.

admin@whileloophk.com
Hong Kong SAR
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