Build once.
Reuse forever.
Capture the prompts that actually work. Organise them into reusable Collections inside your private Vault. Share what's worth sharing — discover what others have figured out.
- ✓ Free to start
- ✓ Browser Extension
- ✓ Web App
- ✓ Mobile PWA
- ✓ Secure Cloud Sync
Product Launch System
Run the same launch motion on every release — without rebuilding it.
- 1PromptResearchMarket & competitor scan↓
- 2PromptIdeal CustomerPersona + jobs-to-be-done↓
- 3PromptPositioningPromise, proof, differentiator↓
- 4PromptLanding PageHero, sections, CTA copy↓
- 5PromptEmailsLaunch sequence, 5 sends↓
- 6PromptLaunch ChecklistDay-of operational steps
The smallest building block
Every great workflow starts with one prompt.
Every prompt teaches you something. Every improvement makes the next attempt better. The Vault is where ideas don't get lost — private, organised, always available.
Turn rough notes into a crisp executive summary
You are a senior chief-of-staff. Read the notes below and produce a one-page summary with the decision needed, three options with trade-offs, a recommendation, and the next concrete action.
Product Launch System
Run the same launch motion on every release — without rebuilding it.
- 1PromptResearchMarket & competitor scan↓
- 2PromptIdeal CustomerPersona + jobs-to-be-done↓
- 3PromptPositioningPromise, proof, differentiator↓
- 4PromptLanding PageHero, sections, CTA copy↓
- 5PromptEmailsLaunch sequence, 5 sends↓
- 6PromptLaunch ChecklistDay-of operational steps
Collections
One prompt solves a problem.
A Collection solves the whole workflow.
Collections aren't folders. They're sequences — the order in which you actually ask. That sequence becomes reusable.
And each step can reference what came before it. Positioning feeds the landing page. The landing page feeds the emails. The emails feed the launch checklist. Change step 3 and every step downstream picks up the update — no copy-paste, no drift.
Run the same workflow tomorrow. Next week. Next month. Without rebuilding it.
Build once. Reuse forever.
Every workflow gets smarter over time. Improve one prompt and every future launch is better. Improve another and every future project improves with it. Knowledge compounds — instead of evaporating into old chats.
Community
Learn from how others actually work.
Publish a prompt, a Collection, or a script when it's worth sharing. Everything else stays private. The feed is for discovery — not for scrolling.
Improve Landing Page Headlines
Rewrite the headline below using a stronger promise + concrete proof. Avoid SaaS clichés. Return 5 variants.
Complete Product Launch System
6 ordered prompts: Research → ICP → Positioning → Landing → Emails → Launch checklist.
Bash Deployment Helper
One-shot deploy with health checks, rollback on failure, and slack ping on success.
Discover better ways to work.
A small sample of Collections people have published.
Everything lives together.
Private when you want. Public when you're ready. Always yours.
The real value isn't saving prompts.
It's capturing experience. Every project teaches you something. Ratiocine makes sure you never lose it.
Simple pricing. Pick what fits.
Start free. Upgrade when you're ready to build without limits.
Monthly
$6.99/mo
Cancel anytime
- ✓Build without limits
- ✓Share as much as you create
- ✓Your workspace, wherever you work
- ✓Premium features
6 Months
$34.99 total
$5.83 / mo · Better value
- ✓Build without limits
- ✓Share as much as you create
- ✓Cross-device sync
- ✓Premium features
Annual
$59 total
$4.92 / mo
- ✓Everything in Monthly
- ✓Cross-device sync
- ✓Pro badge
- ✓Priority support
- ✓ Secure Payments
- ✓ Cancel Anytime
- ✓ 14-day Refund Policy
- ✓ Privacy First
Frequently asked.
Do I need an account?+
Yes — your Vault and Collections are tied to your account so they sync across the web app, browser extension, and mobile PWA.
What happens if I reach the free limit?+
Your existing prompts and Collections keep working. You'll be prompted to upgrade when you try to save beyond the free quota.
Can I cancel anytime?+
Yes. Cancel from billing at any time — you keep access until the end of the current period.
Can I export my data?+
Yes. You can export your prompts anytime from browser extension, so you always have your own copy
Who owns my prompts?+
You do. Publishing is opt-in per item. Anything you don't publish stays private to your account.
Can I keep everything private?+
Yes. Nothing is shared unless you choose to publish it. Collections are unlisted by default.
Your next workflow starts with one prompt.
Create. Organise. Reuse. Share. All in one workspace.