Cairn
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Your past self becomes your strategist.

Judgment, compounded.

Hand over meeting notes or memos, and the decisions inside stack up as records, so how you decided before can be called up right beside the decision in front of you. The one who decides is always you.

Cairn

Toss it in

FileDrag in board-meeting-0714.docx
EmailJust forward to pick@cairn.dotqinc.com
PasteEven part of a memo works

↓ A few minutes later

4 decision candidates arrived in your inbox.

Takes about 30 seconds. No writing. We don’t keep your minutes (originals are deleted after review).

The actual flow of the app (mock)

Deciding is always done alone.

Consult inside the company, and worry spreads. Consult outside, and you explain everything from scratch. Ask an AI, and you get general answers from something that does not know your company. And still, in the end, you are the one who decides. Cairn stays beside you in that time before deciding.

/ Approach

A typical AI answers.

Cairn asks.

A typical AI answers the moment you ask. But in heavy decisions, what really works is not a fast answer, but the right question. Cairn is in no hurry to answer. Like a trusted advisor, it keeps asking until your decision takes shape.

Why we built this →

Questions an advisor would ask

  • Who is most likely to object, and what would they say?

  • If it did not work out, what would be the first sign?

  • Is what you are deciding now the issue that is actually on the table?

How your strategist takes shape.

01

Let go.

After a meeting, just toss in the minutes as a file or forward them by email to pick@. About 30 seconds. You don’t even need to open the app. Only the decisions are extracted; we don’t keep your minutes.

02

Stack your decisions.

A few minutes later, decision candidates arrive in your inbox. Review and approve them one by one: about a minute and a few taps each. No writing; approved decisions stack up as structured records.

03

It stays beside you.

Then just wait. Unreviewed candidates arrive in one weekly “report from your strategist,” and when a new decision runs against your past, it tells you, with the date. Your May 14 self speaks up to today’s you.

Your May 14 self

Decision then: Hold off on raising prices this term

Deciding factor then: Churn risk could not be sized

Today’s decision appears to point the opposite way from May 14.

You will open it a few times a month.

Not only for founders. This is a tool for high-caliber professionals entrusted with heavy decisions. It is not a daily app; open it only around those decisions.

Deciding alone, late at night

You can consult an AI, but each consultation starts from zero.

Think with an AI that asks back; once decided, it becomes a record. The conversation stops vanishing.

Read more (Japanese) →

Decided in the meeting, yet nothing moves

Decisions sink to the bottom of the minutes.

Toss in the minutes; only the decisions remain, shareable with a single link.

Read more (Japanese) →

The night before the board or a ringi

The decision is made; only the document remains.

Draft the proposal or ringi from the stacked decision itself.

Read more (Japanese) →

A handover is on the horizon

You can hand over the work, but not the reasons.

Records stacked in one shape become the handover document itself.

Read more (Japanese) →

/ Records

The more decisions you stack, the clearer your path becomes.

The dialogue remains as a structured decision record: the situation, the options considered, the reasoning, the pitfalls you foresaw. Three months from now, you can reread today’s decision. As decisions accumulate, your own axis comes into focus, and for whoever inherits the business one day, it becomes the most reliable handover document there is.

And each decision can have its outcome added later. When the day comes, Cairn quietly asks: how did it turn out? No pass or fail marks; the reading you had then and what actually happened simply sit side by side in the same record.

Cairn
2026-06DecisionRevise the salary table for mid-career hires
2026-05Strategy memoConsider raising the price of the main product
2026-05DecisionDecide contract terms with a new business partner

To stack your first decision, start for free

/ Pricing

Start free, with a single decision.

Creating, viewing, reflecting on, and exporting records is unlimited on every plan. What changes by plan is AI usage and how far records can be turned into documents.

Free

¥0

Try it

Coaching (AI)
Up to 2 / month
Records, viewing, reflection, export
Unlimited
Decision Brief (a page you can hand over)
Proposal & approval drafts (AI)

Lite

¥3,000 / mo

Start stacking

Coaching (AI)
Up to 5 / month
Records, viewing, reflection, export
Unlimited
Decision Brief (a page you can hand over)
Included
Proposal & approval drafts (AI)

Coming soon

Pro

¥12,000 / mo

Everyday companion

Coaching (AI)
Unlimited
Records, viewing, reflection, export
Unlimited
Decision Brief (a page you can hand over)
Included
Proposal & approval drafts (AI)
Core templates

Coming soon

ProMax

¥30,000 / mo

Ready to hand outside

Coaching (AI)
Unlimited
Records, viewing, reflection, export
Unlimited
Decision Brief (a page you can hand over)
Included
Proposal & approval drafts (AI)
All templates + your own format

Coming soon

Prices include tax and are planned amounts during the open beta. Creating, viewing, reflecting on, and exporting your decision records (md / JSON) is unlimited on every plan. What changes by plan is how much AI you can use, and how far records can be turned into documents. Paid plans are still in preparation; we will let you know when they open.

Start, or just ask.

Cairn is in open beta. Anyone can start for free, without waiting for an invitation. Some parts are still being built. If something stands out as you use it, tell us through the form below.

Start for free

About .Q: dotqinc.com

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