CoThink
For founders who think in public

Structured thinking,
in 60 seconds.

Every ChatGPT thread ends in a wall of text nobody re-reads. CoThink ends in a card you can actually find, edit, and revisit.

No password. No credit card. Delete anything, anytime.
Decision
draft
Should we raise now or wait for better numbers?
R
  • Context: 9 months runway, MoM growth flat for 6 weeks.
  • Options: raise now on story · wait 2Q for data · bridge.
  • Key assumption: growth is a product issue, not distribution.
  • Risks: raising on flat metrics prices down the round.
What would have to be true for growth to return in 8 weeks?
Structure this
The loop

Four steps. Under a minute. Repeat.

STEP 1
Pick a template
Decision, Plan, or Reflect — or build your own. Ray knows the shape of each.
STEP 2
Talk it out
Ray replies in 3-5 bullets and one sharp question. No walls of text. No pleasantries.
STEP 3
Structure it
Tap a button. The thread becomes a card you can edit, tag, and keep.
STEP 4
See patterns
After 10 cards, Ray surfaces your recurring assumptions, blind spots, and shifting beliefs.
Built-in templates

Three shapes to start. Build your own anytime.

Decision
Weigh it. Name the risk. Commit.
ContextOptionsKey assumptionRisksLeaningNext step
Plan
From vague intent to concrete next move.
GoalApproachMilestonesRisksNext step
Reflect
What happened, why, what to change.
What happenedWhyLearningChange to make
Beyond the thread

Your thinking, searchable — not scrolled.

Kanban feed
Every card you finish lands in a lane by template. Drag to reclassify.
Semantic search
Find past thinking by meaning, not keywords. “Why we pivoted” finds the card you forgot to title.
Auto tags
Ray suggests tags when you finalize. Edit, remove, or add your own.
Patterns (after 10)
Ray reads across your cards and surfaces recurring assumptions and blind spots.
Refine bullets
Not quite right? Tap the sparkle — Ray rewrites just that bullet, in your voice.
Custom templates
Design your own card shape. Retro, interview prep, bug triage — Ray adapts.

Stop scrolling your own thoughts.

Start with one Decision. Ship one card. See what “structured thinking” actually feels like.

Start free