Pricing

Free to start.
Found it for life.

The free tier is live now. A limited run of founding seats locks in Premium at the lowest price it will ever be — refundable until Premium opens.

Access
Free tier live now
Commitment
No card to start free
Upgrade path
Founding Premium when you want more depth
Free
£0
Free now. No catch.
Best for
Writing your first positions down properly and seeing whether the product changes how you review them.
  • ✓Up to 5 active theses
  • ✓Core signals: earnings, filings, news, insider transactions
  • ✓Thesis health score (Healthy / At Risk / Broken)
  • ✓Weekly digest email
  • ✓12 months of signal history
Create free account →
No card · up to 5 active theses
Founding Premium
LIMITED SEATS
from £59
Founding price, locked for life.
Best for
People who already rely on the workflow and want deeper coverage, more history, and less setup friction.
  • ✓Unlimited theses
  • ✓Broker connection (Trading 212 + more)
  • ✓Counter-thesis assistant
  • ✓Full history, unlimited
  • ✓Pre-earnings nudges and post-earnings review
  • ✓Quarterly review prep
  • ✓Everything in Free
No payment now · your founding price, locked

By reserving a seat you agree to our Terms and Refund Policy. penKeep is a research tool, not financial advice.

Shared promise

The upgrade is more depth, not a different philosophy.

Same product logic
No tier gives buy or sell calls.
Free and premium both stay grounded in your written reason, not in stock-picking prompts dressed up as certainty.
Same discipline
The workflow stays thesis-first.
The upgrade is more coverage, more history, and more tooling around the same core decision loop.
Same ownership
Your notes stay yours.
The product still acts like a decision record, not a social feed or recommendation engine.
A note on what we are

penKeep is a research and journaling tool, not an investment advisor or broker-dealer. No tier, free or premium, gives you buy or sell recommendations. Thesis health scores are a prompt to re-read what you wrote, not an instruction to act.

Still have questions?

The FAQ covers signals, broker connections, data, and more.

Read the FAQ →