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Ben Sage

Stanford physics grad and app maker, co-founder of the Union St app studio

About Ben Sage

Ben Sage is an app maker in San Francisco who studied physics at Stanford. He co-founded Mindie, which was acquired in 2024, and previously worked on apps at Polymarket and Whop.

He now co-runs Union St, an app studio, and writes long-form posts on his site about building consumer apps, including building Polymarket's app, selling an app built inside Instagram and how one viral tweet changed his finances.

Products by Ben Sage

Mindie logo

Mindie

sage.me

acquired

App Ben co-founded that was acquired in 2024.

Ben Sage FAQ

What does Ben Sage do?

Ben Sage co-founded the app studio Union St and builds consumer apps; he previously co-founded Mindie, acquired in 2024.

Where has Ben Sage worked?

He has worked on apps at Polymarket and Whop and studied physics at Stanford.

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