Kantara · AI product studio in Hong Kong
Kantara is my independent product studio. I design, build and run AI products for real turning points: becoming a parent, finding the right class for your child, and launching an app people will believe in. I also work with founders as an AI product consultant.
The common thread
Someone to trust: a wise friend at 3am, the right class for your child, the expert behind your app.
Portfolio
Three live products, each designed, built and launched by one founder.
A wise friend for new mums, on WhatsApp at 3am.
Simone is a conversational AI that answers the questions new mothers ask alone at night, from feeds and fevers to the feelings nobody warns you about. No app to download: she lives in the chat you already use.
Sample conversation with Simone
online · typically replies instantly
Hong Kong's home for kids' activities and classes.
Classbee gathers kids' classes, camps, workshops and playgroups in one place. Parents search by activity, district or age, filter for free trials, paid trials and drop-ins, and shortlist what to try. Providers list their own classes and early-bird deals.
Anyone can ship an app now. Rallow helps people trust yours.
Rallow connects AI app builders with real experts who shape the parts that matter, like a physiotherapist rewriting a running app's injury advice. Each contribution is scoped, then confirmed by both sides, so the project page shows exactly who shaped what.
AI product consulting
I take on a small number of consulting projects alongside the studio, so you work directly with me, not a team of juniors.
From idea to a working AI product you can put in front of real users. Scope, conversation design, prompts, safety rails and a WhatsApp or web pilot.
Founders with an AI idea and no prototype yet
A hard look at an AI app in health, family, money or wellbeing: content accuracy, safety and escalation, privacy, and which experts you need behind it.
Teams preparing to launch or raise
A standing call with someone who has taken three products from zero alone. Prioritisation, positioning, go-to-market and keeping your sanity.
Solo and first-time founders
The studio
Every product begins with a problem I hit and couldn't solve. I don't chase categories; I build what I went looking for.
Simone exists because there was no one to ask at 2am.
My products sit close to families and reputations. I favour accuracy, privacy and expert review over growth hacks.
Rallow turns that standard into a product for other builders.
One founder, AI tools and the right specialists on call. I ship carefully, share what I learn, and let each product find its own audience.
Each product runs as its own brand, backed by the studio.
Where it started
“I just wanted someone knowledgeable to talk to at any hour of the night. That person didn't exist. So I built her.”
Stella Jiang
Founder, Kantara
I started Kantara to build Simone, because I was a first-time mum who needed her.
Building Simone taught me how hard it is to find people you can rely on, whether that's a class for your toddler or an expert to stand behind your product. Classbee and Rallow came out of that.
Simone was the first leaf. It won't be the last.
Read my storyWork with me
Send a few lines about your product and where you're stuck. I read and reply to every message myself.
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