Angel investing is one of the most intellectually demanding things you can do with capital. You're evaluating teams before they have meaningful traction, sizing markets that don't fully exist yet, and making probabilistic judgments with incomplete information — all under time pressure from founders who have other term sheets on the table.
Most angel investors approach this with a mix of gut instinct, scattered notes, and spreadsheets cobbled together over time. That works — until it doesn't. Until you miss a red flag you'd seen before. Until you can't remember why you passed on a deal six months ago. Until you're in a second meeting and realize you forgot to ask about the cap table.
That's why we built Zen Due.
What it is
Zen Due is a structured diligence platform built specifically for angel investors. It gives you:
- Phased frameworks — Screening, Early DD, and Late DD questions tailored to each stage of your process
- Signal tracking — flag RED, YELLOW, and GREEN findings as you work, so your conviction is visible and auditable
- AI document extraction — upload a pitch deck or term sheet and let Claude map the key points directly into your framework
- A knowledge base that compounds — every deal you analyse makes you a sharper investor
Who it's for
Zen Due is built for serious angel investors — people who are writing multiple checks a year and want a repeatable process, not a one-off spreadsheet. If you're doing your first deal, our free Diligence 101 resources are a great place to start.
What's free
The Diligence 101 library — frameworks, guides, and mental models for early-stage investing — is completely free and doesn't require an account. We built it because we believe a better-educated angel community is good for everyone.
Get started
If you're ready to bring rigour to your deal flow, start a free 7-day trial. No credit card required until your trial ends.