# Azumio Inc.

> Azumio is a Redwood City, California digital health company that builds AI-powered mobile apps and developer APIs for tracking heart rate, food, sleep, fitness and diabetes. Founded in 2011 out of the runaway success of its Instant Heart Rate app, Azumio's consumer titles - including Argus, Calorie Mama, Glucose Buddy, Fitness Buddy and Sleep Time - have collectively surpassed 100 million downloads. The company also licenses its computer-vision technology to businesses through the Calorie Mama / Food Lens food-recognition API and its Instant Diabetes Test and health-data platform APIs.

- **Founded:** 2011
- **Headquarters:** Redwood City, California, United States
- **Founders:** Peter Kuhar (Co-founder & CEO/CTO), Bojan Bernard Bostjancic (Co-founder (former CERN researcher)), Tom Xu (Co-founder (creator of Glucose Buddy))
- **Team size:** ~9 employees (estimate)
- **Products:** Instant Heart Rate, Argus, Calorie Mama, Glucose Buddy, Fitness Buddy
- **Notable:** Instant Heart Rate surpassed 10 million users, becoming one of the most popular health apps of its time., Portfolio of apps (Argus, Calorie Mama, Glucose Buddy, Fitness Buddy, Sleep Time) collectively exceeded 100 million downloads., Raised early backing from Founders Fund and Accel Partners in 2011, ahead of the wearables boom.

## Products & services

- **Instant Heart Rate** — The app that started the company - measures heart rate using the smartphone camera by detecting color changes in the fingertip. One of the most downloaded mobile health apps of its era.
- **Argus** — An all-in-one activity, food, sleep and heart-tracking app that consolidates data from Azumio's other apps into a single health timeline.
- **Calorie Mama** — AI diet counter that recognizes food from a photo and estimates nutrition and calories using deep learning; recognizes thousands of dishes across many languages.
- **Glucose Buddy** — Diabetes management and blood-glucose logging app, one of the earliest of its kind, originally created by co-founder Tom Xu.
- **Fitness Buddy** — Workout and exercise app with a large library of routines and guided training.
- **Sleep Time** — Sleep-cycle tracking and smart alarm app that analyzes movement to wake users at the optimal point in their cycle.
- **Calorie Mama / Food Lens Food Recognition API & SDK** — Enterprise computer-vision API and SDK that turns a food photo into a detailed nutrition profile; recognizes 5,000+ foods with database translations in 10+ languages.
- **Instant Diabetes Test API** — API aimed at non-invasive, camera-based screening and digital biomarkers for type 2 diabetes risk.
- **Azumio 360 API & SDK / Diabetes Management API** — Health-data platform APIs that let businesses build health-monitoring and chronic-condition-management features on Azumio's technology.

## Achievements

- Instant Heart Rate surpassed 10 million users, becoming one of the most popular health apps of its time.
- Portfolio of apps (Argus, Calorie Mama, Glucose Buddy, Fitness Buddy, Sleep Time) collectively exceeded 100 million downloads.
- Raised early backing from Founders Fund and Accel Partners in 2011, ahead of the wearables boom.
- Calorie Mama food-recognition API licensed by Samsung for Bixby.
- Food-recognition model recognizes 5,000+ dishes with translations in 10+ languages.

## Latest updates

- **2016-08** — Launched Calorie Mama AI diet counter, applying deep learning to food photo recognition.
- **2014-08** — Closed a $916K follow-on Series A round with Western Technology Investment and Accel.
- **2013-07** — Launched Argus, a comprehensive food and activity tracker consolidating its app data.

## Links

- Website: https://azumio.com
- LinkedIn: http://www.linkedin.com/company/azumio-inc-
- Twitter/X: http://www.twitter.com/azumioinc
- GitHub: https://github.com/azumio
- Facebook: http://www.facebook.com/azumioinc

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Published by YesPress — https://yespress.io
Last updated: 2026-07-13