Your prompt library,
built once, reused forever.
Save the prompts that work, keep them in your private Vault, and group them into Collections you can share with one link — anyone can open it, no account needed.
- ✓ Free to start
- ✓ Web App
- ✓ Mobile PWA
- ✓ Secure Cloud Sync
Writing with AI
The prompts from my video — copy the ones you need.
- 1CopySummarise a video transcript5 takeaways + supporting quotes
- 2CopyTurn rough notes into a blog outlineTitle, sections, bullets
- 3CopyRewrite in a clearer, plainer toneSame facts, easier read
- 4CopyDraft title ideas10 options, no clickbait
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
Each step builds on the answer before it.
- 1StepResearchMarket & competitor scan↓
- 2StepIdeal CustomerPersona + jobs-to-be-done↓
- 3StepPositioningPromise, proof, differentiator↓
- 4StepLanding PageHero, sections, CTA copy↓
- 5StepEmailsLaunch sequence, 5 sends↓
- 6StepLaunch ChecklistDay-of operational steps
Collections
Group the prompts that belong together.
Share them with one link.
A Collection keeps prompts in the order you use them. Put the link under a video, in a newsletter or a team chat — anyone can open it and copy what they need, without signing up.
Need a multi-step workflow? Turn on chaining. Each step can point to the answer from an earlier one, and when you copy a step it tells the AI exactly which earlier answer to use — so the same process runs the same way every time.
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.
The kinds of Collections you can build and share.
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.
Free
$0/mo
- ✓100 prompts in your Vault
- ✓5 Collections
- ✓10 stacks (folders)
- ✓10 published items
- ✓Community access
Monthly
$6.99/mo
Cancel anytime
- ✓Build without limits
- ✓Share as much as you create
- ✓Unlimited collections and stacks
- ✓Premium features
6 Months
$34.99 total
$5.83 / mo · Better value
- ✓Build without limits
- ✓Share as much as you create
- ✓Unlimited collections and stacks
- ✓Premium features
Annual
$59 total
$4.92 / mo
- ✓Everything in Monthly
- ✓Lowest price per month
- ✓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 and the mobile app (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. Export everything as a JSON file anytime from Settings → Account, 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.