/Companies

Vivoo

Techstars '19500 Global '17

Palo Alto, US · Founded 2015 · Delaware corporation · 12 known investors

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Vivoo develops at-home urine testing products with machine learning-powered image processing to help users monitor their hydration, nutrition, and overall wellness. The company serves individuals seeking personalized health insights and partners with healthcare professionals to deliver science-backed health monitoring solutions.

Also known as Vivoo App · Vivosens Inc.

Founders & leadership

Vivoo was founded in 2015 by Miray Tayfun and Gözde Büyükacaroğlu.

MTMiray Tayfun
Miray TayfunFounder
GBGözde Büyükacaroğlu
Gözde BüyükacaroğluFounder
ER
Edoardo RizziChief Executive Officer
GR
George Radman

Investors · 12

Also in the syndicate · 1

ONCE Ventures

Funding

SEC filings, press & company announcements

$12.2M disclosed across 4 rounds · 2016–2021

▶$75KraisedJan 2018 · 2 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Edoardo RizziExecutive Officer, Director
Offering amount
$1M
Amount sold
$75K
Minimum investment
$10K
First sale
Dec 2017
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$130KraisedDec 2016 · 6 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Edoardo RizziExecutive Officer, Director
Offering amount
$250K
Amount sold
$130K
Minimum investment
$5K
First sale
May 2016
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Sep 2026

Vivoo develops at-home urine testing products paired with a mobile app. The core Vivoo Wellness Test is a urine strip that the user photographs with the Vivoo app; machine learning-based image processing converts the strip's colour reaction into readings for eight body markers — vitamin C, magnesium, calcium, sodium, oxidative stress, pH, hydration and ketones — with results returned in about 90 seconds together with nutrition and lifestyle recommendations. The company states its tests are developed with doctors, dietitians and scientists using established urine analysis techniques, and cites over 99% accuracy validated in laboratory testing and over 96% precision for app-delivered insights.

Beyond the flagship wellness kit, the product line includes an at-home UTI test, ovulation and fertility tests, a vaginal pH test and bundled "HerCheck" kits, priced between roughly $9.99 and $39.99, with several items sold only in the United States. A Vivoo Smart Toilet accessory that passively measures hydration from urine in about 30 seconds and transmits results to the phone is offered for pre-order. The app acts as a broader wellness hub: it syncs activity, sleep and heart-rate data through Health Connect, offers meal scanning, a women's health section for logging vaginal pH, LH, fertility and pregnancy test results and menstrual cycle tracking, an AI assistant called Welly that generates meal plans and insights, and a library of 400+ wellness articles. Vivoo states its products are for general wellness awareness and education and are not intended for diagnosis, treatment or prevention of disease.

Founding story

Vivoo's founding team was led by CEO and co-founder Miray Tayfun, a serial founder and bioengineer who graduated from Stanford postgraduate programs, with co-founders George Radman as CFO, Gozde Buyukacaroglu as COO and Ali Atasever as CTO. The team selected urine as the starting biomarker source because it is easy to collect and analyse and can reveal a large number of the body's performance variables, with roughly 4,000 metabolites observable in urine.

Business model

Vivoo sells consumer at-home test kits and a hardware accessory, distributed direct-to-consumer through its own online store and, per 2021 reporting, through retail partners including Amazon and Walmart. The tests are used together with a free companion app that delivers results and recommendations.

Revenue comes from sales of urine test kits and related at-home tests, historically offered both as one-time packs and as recurring subscriptions; in 2021 the company sold a four-test pack for $34.99, a three-month subscription at $15.99 per month and a twelve-month subscription equivalent to $7.99 per month. A Smart Toilet device is offered for pre-order.

Traction

Vivoo launched its subscription service in July 2020 and reported more than 50,000 users across over 100 countries within roughly a year, expecting revenue to grow tenfold in 2021. Its website now reports over 500,000 users, more than 3 million tests sold and presence in over 100 countries. The Android app shows 100,000+ downloads and a 5.0 rating across about 1,080 reviews.

Latest developments

The company is taking pre-orders for the Vivoo Smart Toilet, a toilet-attached accessory that measures hydration in about 30 seconds and sends results to the user's phone, and has broadened into women's health testing with UTI, ovulation, fertility and vaginal pH products plus bundled HerCheck kits. The app has added Health Connect syncing of activity, sleep and heart-rate data, meal scanning and the Welly AI assistant.

▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies

Market position

Vivoo competes in the personalized wellness and quantified-health category, where rivals track other biomarkers such as blood glucose or the microbiome; Vivoo's non-invasive urine-strip approach was positioned in 2021 press coverage as lower-friction than finger-prick, stool-sample or continuous glucose monitoring methods. The company reports over 500,000 users, 3 million+ tests sold and availability in 100+ countries.

A non-invasive, low-mess urine-strip format that requires no lab visit or shipping of samples, with results and tailored nutrition and lifestyle advice delivered in the app within about 90 seconds, backed by stated accuracy figures from laboratory validation and development input from doctors, dietitians and scientists.

Technology

Machine learning-based image processing analyses a photographed urine test strip through the smartphone app to produce marker readings and scores, reported within about 90 seconds. The company chose urine because it is easy to collect and analyse and can reflect many performance variables. The app integrates third-party body data via Health Connect and includes an AI assistant, Welly. The Smart Toilet attaches to the toilet and passively measures hydration through urine analysis without strips.

Go-to-market

Direct-to-consumer e-commerce via vivoo.io combined with a free mobile app on Google Play, supported by retail distribution partnerships (Amazon, Walmart as of 2021), endorsements from physicians and dietitians, media coverage and educational content. Proceeds from the 2021 Series A were earmarked largely for team expansion focused on the US market and for additional test kits and a premium offering with wearable data integration.

Health-conscious consumers seeking actionable insight into diet, energy, sleep and general wellness. As of 2021 the largest user group was women aged 25-45, followed by men of the same age group, with keto dieters as early adopters; around 80% of users also used other trackers such as wearables. The current product range also targets women's health needs including urinary tract, vaginal pH, ovulation and fertility testing. Dietitians and other practitioners use the tests with patients.

Geography

Products ship internationally, with the company citing over 100 countries. As of 2021 the largest markets were the US and Canada, followed by the UK and Australia, with English-only content tailored to Western cuisine. Several newer tests are sold only in the USA. The app developer is listed as Vivosens Inc. in San Francisco, California.

History

TechCrunch described Vivoo as founded in 2017 with a founding team led by CEO and co-founder Miray Tayfun, a bioengineer and Stanford postgraduate alumna, alongside George Radman (CFO), Gozde Buyukacaroglu (COO) and Ali Atasever (CTO). The subscription service launched in July 2020, and in November 2021 the company raised a $6 million Series A led by Draper Associates. The product range has since expanded from the wellness strip into UTI, ovulation, fertility and vaginal pH tests and a Smart Toilet hardware accessory.

Risks & controversies

Coverage of the personalized-wellness category notes the challenge of extracting reliable signal from biological noise and avoiding privacy pitfalls when applying AI to remotely captured biomarker data. User reviews on Google Play report calendar bugs causing missed test logs, strips being flagged as expired, and one reviewer relaying a physician's view that urine strip readings for calcium and magnesium may not correspond to blood levels. Vivoo states the app is for general wellness awareness only and is not intended for diagnosing or treating disease.

Compiled by commissioned research from 9 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Android app downloadsJan 2026100,000 downloads
Android app ratingJan 20265 stars
Countries servedJan 2026100
Registered usersJan 2026500,000 users
Stated test accuracyJan 202699%
Tests soldJan 20263,000,000 tests
UsersNov 202150,000 users
Wellness Test Kit priceJan 2026$25

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Related companies · 3

Companies working in the same space as Vivoo.

Timeline · 4

launches, deals, and filings
Jan 2026
Vivoo Smart Toilet offered for pre-order

A toilet-attached accessory that passively measures hydration through urine analysis in about 30 seconds and sends real-time results to the user's phone, listed for pre-order on the company website and described in the app listing.

source ↗

Nov 2021
Vivoo raises $6M Series A led by Tim Draper's Draper Associates

Draper Associates led a $6 million Series A, with ONCE Ventures, Revo Capital, 500 Startups (a prior pre-seed backer), Global Ventures and Halogen Ventures participating. Funds were earmarked mainly for team expansion with a US focus, additional test kits and a premium offering integrating wearable data.

$6M source ↗

Nov 2021
Retail distribution partnerships with Amazon and Walmart

Vivoo reported having signed partnerships with retail outlets including Amazon and Walmart to distribute its product in the US.

source ↗

Jul 2020
Vivoo launches subscription at-home urine test service

Vivoo began offering its subscription-based at-home urine test kits paired with its app.

source ↗

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

Legal entities · 1

corporate structure
VivooDelaware

In the news

▸Research sources · 9

primary sources listed

9 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Vivoo do?
Vivoo sells app-based at-home urine test strips that use image processing to deliver personalized wellness insights.
Who founded Vivoo?
Vivoo was founded by Miray Tayfun, Gözde Büyükacaroğlu in 2015.
Who are Vivoo's investors?
Vivoo's investors include 500 Emerging Europe, 500 Global, APY Ventures, Capria Ventures, Draper Associates, Halogen Ventures Management Company Llc, Mindshift Capital, Revo Capital and 3 more.
How much funding has Vivoo raised?
Vivoo has disclosed $12.2M raised across 4 rounds.
Where is Vivoo headquartered?
Vivoo is headquartered in Palo Alto, US.