Founder Thinking Space
Structured workspace for founders to organize ideas, decisions, and problems.
Somewhere to think in writing: the decision being turned over, the arguments on each side, what is actually being assumed. Structured enough to return to, unstructured enough to be used while the thought is forming.
What a v1 does5 features
- A page per decision, with the options laid out
- Assumptions named and separated from facts
- Old decisions returned to with what actually happened
- Linked thinking, so related decisions connect
- Private, and never used to train anything
The market
Day One charges $34.99 a year. Reflection products monetise annually rather than monthly, so $15 a month is materially above the category norm.
Where these numbers come from
| Company | Earns | Reach | Source |
|---|---|---|---|
| Stoic | ~£30 a year | 4M+ users | Published pricing |
| Day One | $34.99/yr iOS | Not published | Published pricing, 2026 |
| Finch | Not published | Top-grossing self-care app | Category ranking |
Why this audience
These viewers are at the stage where the business is mostly still a set of decisions. The content treats thinking as the work rather than a preamble to it. A structured place to reason in writing is a tool for people who have been told their thinking is the product.
Before it can launch
No licence, certification or data agreement stands between this and a launch — app-store review and an ordinary privacy policy aside.
What it earns
Drag me Every figure recalculates as you go.
0.0055% of 18.2M followers · capped at 50,000
Opens on the price this idea was costed at, $15.
1,000 paying — 0.0055% of 18.2M followers — × $15 a month = $15,000 a month
Fifty thousand paying users is the ceiling every one of these pages is drawn against, not a forecast. It opens at a thousand, the bottom of the range, so the first figures you see are the modest ones. What the cap buys is comparability: the same range on every app, and the percentage of the audience it takes as the number that moves.
Is this the one for your audience?
We fund it, build it, and run it. You bring the audience and take a share of the revenue. Nothing to pay and nothing to build.
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