Rob Sawyer

Rob Sawyer

Engineer. Maker. Plant nerd.
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Rob SawyerhuntedSystem 2
System 2 is your cognitive bias firewall. Flag biases in your thinking, notes, and decisions to engage deliberate, rational reasoning when it matters most.
System 2
System 2Cognitive bias firewall for smarter decisions
Rob SawyerhuntedBill AI
Building AI products is complex enough — your billing shouldn’t be. BillAI is a developer-first platform that handles usage tracking, invoicing, subscriptions, and revenue splits across all your AI apps. Track tokens, compute time, and vCPU usage; automate payments; split revenue with collaborators; and get clear metrics across apps and end-users — all from one clean dashboard.
Bill AI
Bill AIAI billing made simple for developers.
Rob Sawyerleft a comment
After years working in decision-science and seeing how cognitive biases silently erode outcomes in teams, I built this platform to shine a light on bias patterns and help organizations act. I’d love your feedback, what bias types matter most for you? How can I make bias-detection feel seamless rather than jarring? Thanks for checking it out ❤️
System 2
System 2Cognitive bias firewall for smarter decisions
Rob Sawyerleft a comment
We built Bill AI because integrating billing for AI apps is surprisingly messy, even when the app itself works perfectly.
Bill AI
Bill AIAI billing made simple for developers.
Rob SawyerlaunchedShmaplex Plant
XPlant Dashboard gives you full visibility into your plant tissue culture projects—track growth, optimize media, and get actionable insights.Our physical kits and media are coming soon, but the dashboard is ready to use today.
Shmaplex PlantYour plant tissue culture dashboard. Github for plants?
Rob Sawyerstarted a discussion

👋 Hi Product Hunt Fam!

I’m Rob, an engineer, tinkerer, and plant enthusiast. Over the years I’ve dabbled in everything from BMX, composting, drift RC, fingerboarding to vermiculture, but what really hooked me recently is plant tissue culture. Not just the plants themselves—but the data, tools, and processes behind it. Outside of plants and code, I’ve worked at Microsoft and Spotify, built websites for brands like...

Rob Sawyerstarted a discussion

Excited to finally share what I’ve been working on!

Over the past year, I dove deep into plant tissue culture, not just because I love plants (bonsai, composting, vermiculture, etc.), but because I got hooked on the data, the processes, and the challenge of optimizing growth. Every explant, every medium, every condition… That obsession led be to build xPlant, a dashboard for hobbyists and small-scale growers to log, analyze, and optimize their...

Rob Sawyerleft a comment
For me, as someone building a dashboard for tissue culture hobbyists, the “essential skill” lately feels like making complex data approachable and actionable. A few years ago, I could get by with basic tracking and spreadsheets. Now, with more people experimenting with plant cultures and sharing results, it’s about designing interfaces that make patterns, trends, and insights immediately clear,...
Ritik Ranjan
Marketers/Designers/Engineers: What's your essential skill for 2025?
Ritik RanjanJoin the discussion