Vermillion

Vermillion is a technical partner for consumer app founders, combining strategic CTO-level thinking with hands-on mobile development execution. We specialize in React Native apps with deep expertise in subscription monetization, paywall optimization, and preparing companies for acquisition.

Our Approach: We become your technical advisor, helping you make the right architecture decisions, avoid costly mistakes, and build technology that scales and attracts acquirers. Our partnerships last years, not months. We have worked with founders from MVP through growth, and one relationship spanning 4 years culminated in a successful acquisition.

What We Do:

• React Native mobile app development
• Subscription monetization strategy (RevenueCat, Superwall)
• Technical due diligence preparation
• Architecture design and code reviews
• Fractional CTO advisory services

Who We Work With:

• Post-accelerator founders (YC, Techstars graduates)
• Consumer subscription app companies
• Marketplace startups
• Founders preparing for acquisition

Our Difference: We have seen 50+ subscription apps and know what converts. We have been through technical due diligence and know what acquirers look for. We stay for years, not months.

Founded by Ken Vermeille, a developer with 15 years of full-stack experience and deep mobile monetization expertise.