
Duet
Design First - Mobile Development Studio
Projects
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Social
Community platform for women
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Dark theme
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Discovery feed
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Post viewing
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Likes & Comments
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1:1 and group messaging
WeTransfer
Collect
Collect is the best way to organize your ideas. Save content from across your apps and bring it together for your friends, your team, or just for yourself.
Over ten million downloads.


One Medical
One Medical’s mobile app makes it easy to get care and manage your health wherever you are. On the go and need to schedule an appointment with your doctor or find the nearest office? Or maybe you just want to request treatment for a common issue? The doctor’s office is now available at your fingertips.
Wist
A personalized local discovery app that uses contextual, social and interest-based data to recommend top 5 places nearby to anyone on the go. It's the first local discovery app that allows users to search by occasion as well as of type of place.
Featured app on Apple's App Store and took the #1 download spot in the Travel section
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Rise
A weight loss and nutritional coaching app. Rise lets you bring a certified nutritionist to every meal, every day.
A “nutritionist in your pocket.” That's what nutrition app Rise offers, with 1-on-1 coaching with a registered dietician to help you achieve your nutrition goals.
Rise was acquired by One Medical in June 2016.
Forty Two
A curated online e-commerce magazine for male fashion. An iOS mobile app to unify selling power and create a singular destination to discover the latest in men’s fashion.

What people have said




Who we are
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Jason Lee

Frank Kuo
Duet is a multidisciplinary duo with expertise in design & user experience coupled with mobile development. It’s been 8 years since we’ve started building quality products with established companies and great startups.
With a discerning eye for aesthetics, Duet is known by peers and clients for our thoughtful approach. We have developed a diverse clientele around the world that rely on our expertise and knowledge in making their vision a reality.
New York, NY | San Francisco, CA