Our Company

We set out to change the world by bridging the gap between people and the researchers that want to understand their unique daily experiences.






1 million+
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ExpiWell is a resource for human experience exploration, innovation, and practice. As scientific leaders in the field of Ecological Momentary Assessment (EMA) and Experience Sampling Methodology (ESM) (the process of studying what people do, feel, and think in their everyday life), we strive to provide tools to make utilizing experience-centered insights widely accessible. We do this primarily through our free survey mobile app and online platform which enables experience-centered data collection, real-time communication, and community building.

We built our technology at the intersection of design and scientific expertise to ensure the best user experience for both researchers and participants. As a team, our goal is to introduce researchers, educators, and innovators to the new era of understanding and improving human experiences.

Purdue University Bell Tower

Our Story

As a brand new faculty member in Industrial-Organizational Psychology at Purdue University in 2013, Dr. Louis Tay was interested in using the most rigorous methods for taking a pulse of workers’ experiences over time to improve their well-being and productivity. However, Dr. Tay found a dearth of technological solutions that catered to social scientists.

Dr. Tay worked with Purdue engineers and computer scientists to design a solution to this problem. The initial solution drew interest from many researchers. To ensure that this experience sampling app and data platform could help researchers everywhere, we created ExpiWell. Today, we have thousands of researchers across the globe using the platform to conduct research.
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Our Team

Louis Tay


Louis Tay, Ph.D.

Louis Tay is William C. Byham Chair Professor of Industrial-Organizational Psychology at Purdue University. His substantive research interests include well-being, character strengths, and vocational interests. His methodological research interests include measurement and data science. He is a co-editor of the books “Handbook of Well-Being”, “Big Data in Psychological Research”, and "Technology and Measurement around the Globe". His research has also appeared in various media outlets such as Wall Street Journal, Washington Post, Time, Newsweek, Scientific American, and MSNBC. He has served in consulting roles to Fortune 500 organizations on topics such as customer and employee well-being, improving recruitment and selection processes, and understanding biases in measurement, machine learning, and artificial intelligence.
Omar Pineda


Omar Pineda

Omar is ExpiWell’s CTO and one of the company’s founding developers. He is responsible for providing tech leadership and ensuring the technology helps and is consist with the overall business strategy. Omar’s expertise consists architectural design, mobile development, and web development. He received his B.S. in Computer Engineering from Purdue University and received distinguished awards for his programming capabilities from HackIllinois2015 and Purdue’s 2014 SparkChallenge. In his spare time, he continues to sharpen his skills by experimenting with the latest technological tools.

Marketing and development manager

Ji Chung

Ji oversees Expiwell’s marketing strategy and product development. She received her B.A. in Chemistry and English at Amherst College, in addition to a Five College Certificate in Culture, Health and Science.
John Bantad


John Bantad

John is an enthusiastic ExpiWell specialist and product developer who seeks to listen to customers, analyze their concerns, and provide them with the best solution for experience sampling and ecological momentary assessment research
CEO David Torres


David Torres, Ph.D.

David Torres serves as an advisor to the ExpiWell Team. He has more than 15 years of business development and study design experience, delivering and executing innovative growth initiatives. David started his career as a sales leader within the recruiting industry at one of the largest recruiting firms in the country. Searching for a scientific understanding of how organizations flourished, he pursued his academic career and received his PhD in Organizational Communication from Purdue University. He also received his MA from Marquette University and BS in Selling and Sales Management from Purdue University.
Margaret Becker


Margaret Becker

Margaret Becker serves as an advisor to ExpiWell. Her former role included overseeing sales and customer success while supporting researchers throughout their ExpiWell experience. She received her B.S. in Psychological Sciences and B.A. in Professional Writing from Purdue University. During her time as an undergraduate at Purdue, she completed two honors research theses and presented her work at both local and international research conferences.
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Scientific Advisory Board

Allison Gabriel

Allison S. Gabriel, Ph.D.

Dan Beal

Daniel J. Beal, Ph.D.

Ed Diener

Edward F. Diener, Ph.D.

Catharine Fairbairn

Catherine Fairbairn, Ph.D.

Marilyn Uy

Marilyn Uy, Ph.D.

Ellen Winner

Ellen Winner, Ph.D.

Kosta Kushlev

Kostadin Kushlev, Ph.D.

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