Why isn’t there an app for that?

Life is busy and relationships are hard. We searched for the right tool for our relationships (yes, we tried Airtable!) but nothing worked.

These tools were manual, tedious, and hard to come back to. We decided to build a better solution.

Dex was founded in 2019, and we’ve been hard at work ever since. We named our project Dex because we're creating the simple, modern rolodex of today.

Dex Mobile App

What we believe


We'll never sell or share your data. Your data remains yours.


Dex isn't a sales CRM — there are no deals or pipeline here.


Life is busy enough. We make intuitive interfaces + take away data entry.

Our team

Dex is a small distributed team. Interested in joining us? Send us a message.

  • Kevin Sun Photo
    Kevin Sun

    Founder at Dex (YC S19)

    🇺🇸 San Francisco

    Kevin was previously a founder at RiskDV and Software Engineer at Amazon and Infer. He studied Applied Math at Harvard.

  • Jack Cook Photo
    Jack Cook

    Founding Engineer

    🇺🇸 San Francisco

    Jack was previously co-founder/CTO at Fetch and a Software Engineer at Neighborly. He studied Symbolic Systems at Stanford.

  • Omar Cruz Photo
    Omar Cruz

    Founding Engineer

    🇲🇽 Guadalajara

    Omar was previously co-founder/CTO at Lesi and a Senior Developer at Rever (backed by Sequoia). He studied at Universidad de Guadalajara.

  • Joss Rodríguez Photo
    Joss Rodríguez

    UX/UI Designer

    🇲🇽 Guadalajara

    Joss was previously a UX/UI designer at Rever (backed by Sequoia) and Tokencash. He studied at Universidad de Guadalajara.

  • Tomás Vélez Photo
    Tomás Vélez

    Mobile Developer

    🇨🇱 Coquimbo

    Tomás studied at the Universidad Católica del Norte.

Follow our progress

See the new features we release on our changelog and our writing at the Dex Blog. For all other general inquiries, please reach out.