# Dornubari Vizor

> Dornubari Vizor is the co-founder and CEO of GroupApp, a platform for group learning, courses and memberships. He previously co-founded Yazamo and LeadQuizzes, studied at Arizona State University, and co-hosted Entrepreneurship in Developing Markets with Lincoln Dahl. His public work focuses on audience participation, member engagement and the practical operation of learning communities.

- **Role:** Co-Founder & CEO at GroupApp
- **Organizations:** GroupApp, LeadQuizzes, Yazamo
- **Education:** Bachelor of Science, Arizona State University
- **Known for:** Co-founded Yazamo, LeadQuizzes and GroupApp., Returned to ASU as an entrepreneurship keynote speaker in 2018., Helped Wealth Nation build a membership program that reported more than $100,000 in subscription revenue after a year.

## Career timeline

- **2012** — Yazamo was already operating; co-founder Jeremy Ellens described a Kiva loan funding model linked to website projects.
- **2012** — Graduated from Arizona State University with a Bachelor of Science.
- **2016** — Published practical quiz-building guidance at LeadQuizzes.
- **2018** — Delivered an ASU entrepreneurship keynote describing six years of company growth to a value above $1 million.
- **2021** — Worked with Wealth Nation on Money School, a community hosted on GroupApp.
- **2023** — Co-hosted Entrepreneurship in Developing Markets with Lincoln Dahl; described building GroupApp in Africa.
- **2026** — Continued publishing GroupApp guides on continuous learning, community rules and program design.

## Achievements

- Co-founded Yazamo, LeadQuizzes and GroupApp.
- Returned to ASU as an entrepreneurship keynote speaker in 2018.
- Helped Wealth Nation build a membership program that reported more than $100,000 in subscription revenue after a year.
- GroupApp’s published author biography credits LeadQuizzes with serving more than 23,000 businesses.

## Latest updates

- **2026-09** — Published a guide to writing and enforcing community guidelines on September 7.
- **2026-01** — Published a continuous-learning program design guide on January 29.
- **2025-12** — Published a step-by-step online community building guide on December 5.

## Links

- Website: http://www.dornubari.com
- LinkedIn: https://www.linkedin.com/in/dornubari

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Profile page: https://yespress.io/dornubari-vizor
Published by YesPress — https://yespress.io
Last updated: 2026-10-14