Danielle Dietzek
In short: Danielle Dietzek is a co-founder of Fourplay Social, the New York double-date app that has since been renamed PlotTwist. She started the company in 2019 with Julie Griggs while working as a nurse. The app lets singles pair with a friend and match with another pair, an approach built around group dates and safety.
Key facts
| Role | Co-founder |
|---|---|
| Organisation | PlotTwist (formerly Fourplay Social) |
| Based in | United States |
| Job title | Co-founder of Fourplay Social [Danielle Dietzek - Co-founder @ Fourplay Social - Crunchbase] |
| Company rename | Fourplay Social has changed its name to PlotTwist; the platform was cofounded by Danielle Dietzek [PlotTwist - Online Personals Watch] |
| Co founder | Co-founded the app with Julie Griggs, who is Co-Founder and CEO [Fourplay Social Company Profile - Craft] |
| Founded year | Fourplay Social was founded in 2019 and is based in New York, NY [Fourplay Social Company Profile - Craft] |
| Launch | Built the product during 2019 with an overseas developer and launched it in the App Store that autumn [Ridgefield native co-founds dating app, Fourplay] |
| Career | Worked as a staff nurse in maternity at NYU Langone while starting Fourplay [Ridgefield native co-founds dating app, Fourplay] |
| Full time start | Founders left their jobs in 2022 to run the startup full time [PlotTwist - Online Personals Watch (summarising Business Ins, 2022] |
| Funding | Company backed by over $1.5M in funding [Q&A with Julie Griggs and Danielle Dietzek, Founders of Four] |
| Alternate title | Described as Cofounder and Chief Growth Officer of Fourplay Social (WERULE advisor bio) [Book Advisor on Demand] |
Biography
Danielle Dietzek is a co-founder of Fourplay Social, a New York based dating and social app that lets singles team up with a friend and match with another pair. Online Personals Watch has reported that the app has changed its name to PlotTwist. She founded it with Julie Griggs, who is described as co-founder and CEO. Some profiles also give Dietzek the title of Chief Growth Officer.
Before working on the app full time, Dietzek trained as a nurse and nurse practitioner at Pace University and worked in maternity care, including a staff nurse role at NYU Langone. Coverage of the company says she and Griggs built the product with an overseas developer during 2019 and launched it in the App Store that autumn. They kept their healthcare jobs through the pandemic and left them in 2022 to run the business full time.
Fourplay uses shared team profiles instead of individual ones. All four people must agree before a group chat opens and a meeting is planned. The founders say this lowers pressure and improves safety. A 2025 Q&A reported that the company had raised more than $1.5M in funding. Dietzek matters to the dating industry as a founder of a double-date format that treats friendship and group meetings as part of dating. Dating Industry Insights has named her as co-founder in its coverage of the app.
Also mentioned in
Questions about Danielle Dietzek
Who is Danielle Dietzek?
She is a co-founder of Fourplay Social, a New York double-date app that has been renamed PlotTwist.
Who co-founded the app with her?
Julie Griggs, who is listed as Co-Founder and CEO.
What does the app do?
It lets singles create a shared profile with a friend and match with another pair of friends, with a group chat opening once all four agree.
When did she start working on it full time?
Coverage reports that she and Griggs left their healthcare jobs in 2022 to run the company full time.
What is Danielle Dietzek's current role?
Danielle Dietzek is Co-founder at PlotTwist (formerly Fourplay Social).
Sources
- Danielle Dietzek - Co-founder @ Fourplay Social - Crunchbase
- PlotTwist - Online Personals Watch
- Fourplay Social Company Profile - Craft
- Ridgefield native co-founds dating app, Fourplay
- Q&A with Julie Griggs and Danielle Dietzek, Founders of Fourplay Social
- Book Advisor on Demand: Danielle Dietzek - WERULE