Prifina
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The User-Held Data Company

Prifina provides a personal data platform where the data is owned by individuals themselves. Anyone can build services for people to live happier and healthier lives.​​

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Award-Winning Personal Data Platform

With Prifina, each individual has their own personal data cloud where data is private-by-default.

A single place to aggregate data from various data sources (mobile apps, wearables and IoT devices).

The Prifina personal data engine allows using this data in applications and AI, where your data is on your side.


Imagine If Your Data Could Talk

Meet Pri-AI and AI Buddies, by Prifina.

Your natural language AI Buddies have the expertise you want to serve you.


Your AI Buddies are integrated and built into your Personal Data Cloud.  With AI Buddies, you can use your own personal data privately.
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Create Your Own AI Buddy

Using enterprise grade tools, Prifina's Pri-AI allows anyone to create their own AI buddies and teach them the library of knowledge you want them to know.



Prifina’s unique user-held data model enables customers to easily link data to their AI buddies to enable a personal user experience utilizing their wearables, location, habits and online services data.
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Manage your AI Buddies with sophisticated AI management layer - Buddy Hub by Prifina
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Knowledge base control and transparency
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Full data privacy and control of data use
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Choose what LLMs to utilize, from proprietary to open source

Meet Some of Our AI Buddies

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Ski AI Buddy that helps you perform

The Ski AI buddy is a personal coach that looks after your turn, angle on the mountain and gives you insights and suggestions. Built in with close partnership with Heierling and a team of ski and mountaineering experts. 
“We want to offer our users a unique user experience where our ski products, such as ski boots, have sensors that provide data that allows us to offer, for example, digital ski instruction and improve safety on the slopes. By collaborating with Prifina, we avoid significant investment and costs associated with user data management. With Prifina, we can show that we respect our customers’ privacy.”
 
​Hans-Martin Heierling, Director, Swiss ski brand Heierling
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Fashion AI Ichijiku - Kimono Bespoke

Ichijiku has combined cutting edge with 1500 years of history of the kimono profession, to create a fashion AI you can speak to. The Tokyo-based sustainable, ethical ultra luxury brand creates one of a kind bespoke apparel from the highest quality antique kimonos. 
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AI Knowledge Twin - Education AI

Embedding specialized knowledge for higher education, giving students an AI Twin to engage with to make a more interactive and accessible learning experience. 

Explore more opportunities with AI Knowledge Twins:
​hi.speak-to.ai/
Sensorize
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Sensors are coming to all products people use.
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With Prifina, you don't need a different app for every product 
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Combine data from many sensors with Prifina to build personal services.
Many Kinds of Personal Data Sources
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Smart IMU (Inertial Measurement Unit) Sensor BNO055
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Movesense for wearables and sensor products for fitness and health
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Tennis Racket Sensor
​Tracker Motion Detector
Whose Data Is It?
It is the individuals data and together we can empower them with it
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Collect
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Combine
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Utilize
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Keep Private
Prifina offers a personal data platform to collect, combine and utilize data from your
​personal sensors and wearables, with full privacy, and open marketplace to utilize data with different apps.

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The User-Held Data Company

Prifina is a venture-backed data platform based in San Francisco dedicated to enabling Personal AI Twins and personal data ownership. Prifina empowers individuals to collect, combine, and leverage their personal information, giving them full control over their digital lives. Consumer brands and developers can create AI agents and apps that deliver personalized customer experiences while ensuring users retain ownership and control over their data.
​© 2025 Prifina, Inc.
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  • Product
  • Ownership
  • Join Waitlist
  • Questions