The Beauty of Less

We're not chasing unicorn status or racing to acquire millions of users. Instead, we focus on creating a thoughtfully curated collection of micro-applications—each designed to solve one specific problem with elegance and care.

We believe in creating tools that respect your time and attention while delivering genuine value. No feature bloat, no unnecessary complications—just elegant solutions to everyday challenges.

Plainbox Studio was born from a simple idea: software doesn't have to be complicated to be powerful.

Singular Focus: Each application solves exactly one problem.

Thoughtful Simplicity: We remove complexity, not capability.

Human-Centered: Our products feel natural and intuitive from the first use.

Sustainable Growth: We build at a pace that ensures quality and longevity.

Meet the Team

  • James McMahon

    MANAGING PARTNER

    James is the founder of McMahon Ventures and has extensive experience in corporate finance and early stage ventures. Agentity is James’ 5th start-up to be leading.

  • John Spivey

    PARTNER

    John is the CEO of Spivey & Company, Inc. and has 30 years of experience launching technology ventures. Agentity is John’s 12th start-up to be engaged in.

  • Daniel Spivey

    PARTNER

    Daniel is the founder of AG Starr, a venture-enablement firm based in New Orleans. He has been engaged with technology start-ups for the past 5 years.