About Simple Cohort
Simple Cohort is the software practice of Sean Robenalt — a technologist, consultant, advisor, and investor based in Ann Arbor, Michigan.
For the past decade Sean has built custom software for teams large and small — web, iOS, and Android, from the user interface down to servers and database design.
Simple Cohort also helps small businesses adopt AI safely and practically — from automating manual workflows to building secure MCP servers that make existing business tools available to LLMs without exposing sensitive systems or data.
Alongside client work, Simple Cohort ships its own apps: Shepherd, a Bible app with an AI study companion; With Fasting, an intermittent fasting tracker; and Snag, a civic app for reporting local problems.
Sean also writes occasional checks into early-stage startups, mostly in biotech. If you want to build something together, get in touch.
Highlights
Wrote the first line of code and scaled the technology through two funding rounds, managing the product lifecycle and a team of designers and developers.
Press: Goodhood's $2.6M seed roundBuilt products from the first line of code at Goodhood, Forever Labs, and Supershot PRP — servers, apps, integrations, and data pipelines.
For corporations, consulting firms, small businesses, and early-stage startups — including connected-vehicle work at Ford.
Bringing small businesses up to speed with AI: AI-powered SaaS, custom MCP servers, automated AI workflows, and SEO-driven growth.