Mobile Internet · Hong Kong

Crafting mobile products that millions rely on every day.

MUSJOY Limited is a Hong Kong–based mobile internet company. We design and ship iOS and Android applications across AI, productivity, photo, video and lifestyle categories — for users in over a hundred markets.

MUSJOY HK product showcase
Founded 2015
Headquarters Tsim Sha Tsui, Hong Kong
Platforms iOS · Android
BRN 69135090 CR No. 2672399
What we do

Building apps that turn everyday tasks into delightful experiences.

Our portfolio spans AI assistants, document tools, photo and video creation, voice technology and lifestyle utilities — all engineered for performance, polish and global reach.

Mobile App Development

Native iOS and Android applications crafted with modern engineering practices — built for performance, stability and a seamless user experience at scale.

AI-Powered Products

From AI chat assistants to intelligent imaging and document tools, we integrate cutting-edge models to make everyday tasks faster, smarter and more useful.

Global Operations

Multi-language localization, regional content tuning and dedicated user support — our products serve users across North America, Europe and Asia.

Our products

A portfolio shaped by what users actually need.

Across AI, imaging, wellness and productivity — every app we ship is refined through years of user feedback, with a relentless focus on quality and craft.

AI & Companions

AI Chat & Assistants

Conversational AI experiences powered by modern large language models — characters, companions, and assistants that listen and respond.

Imaging

Face & Photo AI

Real-time facial recognition, age progression, beauty analysis and creative photo effects — putting advanced computer vision into everyday cameras.

Wellbeing

Sleep & Wellness

Sleep tracking, smart alarms, ambient soundscapes and dream journaling — building gentler routines for better rest and mornings.

Audio

Voice & Audio

Voice recording, transcription and audio creation tools designed to make capturing and sharing sound effortless on mobile.

Productivity

Document Tools

PDF scanning, OCR, signing and management — turning a phone into a complete document workflow for everyday work.

Translation

Translation & OCR

Real-time text and photo translation across many language pairs — bridging language barriers wherever users travel or read.

Video

Video Creation

Mobile video editing, templates and music sync — making short-form content creation accessible on every device.

Lifestyle

Lifestyle Apps

Personalization, fortune, countdowns and everyday utility apps — small, focused tools that fit naturally into daily life.

Flagship products

Apps available now on the App Store.

Featured · Look Like

Real face technology, packaged as everyday fun.

From celebrity match to age progression and future-baby prediction — Look Like puts professional-grade facial recognition into a delightful experience that has reached users in over a hundred countries.

Look Like screenshot
Look Like screenshot
Look Like screenshot
Featured · ASleeper

A calmer night, a better morning.

ASleeper combines a smart alarm, curated sleep sounds, dream journaling and clear sleep analysis — designed to help users build healthier sleep habits, one night at a time.

ASleeper screenshot
ASleeper screenshot
ASleeper screenshot
By the numbers

A decade of building for global users.

10+
Years of mobile product experience
25+
Apps published on App Store and Google Play
10M+
Users reached worldwide
100+
Countries and regions served
Why MUSJOY HK

Principles that shape every product we ship.

User-First Design

Every feature begins with a real user need. We listen to feedback, iterate quickly, and treat product quality as non-negotiable.

Engineering Excellence

Skilled, experienced engineers who take pride in clean code, robust architecture and shipping reliable software at scale.

Innovation & Agility

We move fast, embrace new technology and stay curious — always looking for better ways to solve problems for our users.

Visit us

Headquartered in the heart of Tsim Sha Tsui.

A registered Hong Kong company, operating from one of the city’s most connected commercial districts.

MUSJOY HK

Tsim Sha Tsui · Kowloon · Hong Kong SAR

Get in touch

For business, partnership or product enquiries.

Office
705A, Silvercord Tower 2
30 Canton Road, Tsim Sha Tsui
Kowloon, Hong Kong
Business Registration (BRN)
No. 69135090
Company Registration (CR)
No. 2672399