Your Decision OS

DECIDEEVERYTHING.REGRET NOTHING.

The operating system for every life decision. Products, travel, careers, relationships, money. Sparsia researches, scores, and picks the winner so you never have to.

Best noise-cancelling headphones under $300
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Zero affiliate linksNo sponsored picksDecides in seconds
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How it works

Not a chatbot.
A decision operating system.

You

Describe any decision

Products, travel, career moves, relationships. Type it in plain English or use a structured template.

Should I accept this job offer at $180k?

Sparsia

Scores across 5 dimensions

Fit, Value, Risk, Longevity, Consensus. The confidence score is derived from real analysis, not vibes.

Here are 10 options to consider
Accept the offer. 87% confidence. Here's why.
Result

One verdict, fully explained

Plus scenario simulation, counterfactual analysis, and blind spots you didn't consider.

Verdict + confidence
5-axis scoring
Tradeoffs + regret analysis
Best/worst case + blind spots

What makes Sparsia different

Built different.
On purpose.

One verdict per decision. No lists, no hedging, no affiliate revenue.

Products
Travel
Career
Life
Education
Home
And everything else

Zero Affiliate Links

No financial incentive to recommend one thing over another. Pure merit.

Confidence Score

Every verdict has a percentage so you know how strong the pick is.

Honest Tradeoffs

What you give up, not just what you get. Plus a runner-up alternative.

Instant Verdicts

AI researches hundreds of options and picks a winner in seconds.

Learns You

Remembers your priorities across decisions. Gets sharper over time.

Share Verdicts

Send a link or export to PDF. Everyone sees the full reasoning.

// No sponsored picks. Ever.
Every recommendation is purely merit-based.

More than a verdict

The operating system
for your life decisions.

Sparsia doesn't just tell you what to pick. It simulates outcomes, tracks results, learns your preferences, and gets smarter with every decision you make.

Depth layer

Scenario Simulation

Every verdict comes with best case, expected case, and worst case outcomes. Know what you're walking into.

Depth layer

Counterfactual Analysis

"What if you chose the opposite?" A genuine argument for the alternative, plus a regret likelihood score.

Second brain

Life Profile

Tell Sparsia your age, city, job, values. Every verdict is personalized to your life, not generic advice.

Memory

Outcome Tracking

Come back later and rate how decisions turned out. Bad outcomes teach the AI to avoid similar picks next time.

Dashboard

Decision Insights

See your patterns: confidence trends, category breakdown, success rate. Your decisions, quantified.

Templates

20+ Templates

Job offers, travel, investments, moving cities, weddings. Structured forms that produce dramatically better verdicts.

Pick a plan that fits

Every plan includes all categories. No affiliate revenue. Recommendations are always merit-based.

Free

Try the engine. See what it can do.

$0/Month
Get started free

Free plan includes

3 decisions per month

Basic output (recommendation + reasoning)

All categories

No credit card required

Pro

For people who make decisions often.

$7.99/Month
Get started

Pro plan includes

15 decisions per month

Full output with tradeoffs, confidence, buy link

Saved decision history

Shareable decision links

Up to 5 collections

Decision insights & outcome tracking

Scenario simulation & deeper analysis

Trending insights

Pro+

Maximum power. Learns your preferences.

$14.99/Month
Get started

Pro+ plan includes

50 decisions per month

Everything in Pro

Unlimited collections

Full decision insights & patterns

Re-run decisions with new context

Multi-scenario comparisons

Life profile & auto-learning

Trending insights

PDF exports

FAQ

Questions & answers

Can't find what you need? Reach out on Twitter.

Every decision.
One operating system.

Products, travel, careers, relationships. Verdicts with scenario simulation, outcome tracking, and a brain that learns how you think.

Get started free
sparsia ~$ decide