01
Find the real question
ProofLoop breaks a broad claim into the specific facts that could support, narrow, or overturn it.
AI evidence challenges
Don't argue. Prove it.
Turn any claim into a shareable challenge. ProofLoop finds credible sources, invites counterevidence, and keeps the argument focused on what can actually be proven.
Free to start. No credit card required.
Disputed7 sources
Evidence added. Claim narrowed.
The ProofLoop promise
Evidence over volume.
Sources stay visible
Inspect the material behind every assessment.
Uncertainty stays honest
See gaps and caveats instead of false certainty.
People stay out of it
Challenge the claim—not the person sharing it.
From hot take to evidence
One claim. A trail anyone can inspect.
ProofLoop turns messy arguments into a clear, shared process without pretending every question has a simple answer.
02
Bring credible evidence
Sources stay attached to the challenge so everyone can inspect what the verdict is based on.
03
Let the claim evolve
Challenges update as evidence arrives—from disputed to narrowed to a clearer consensus.
The loop
Share → challenge → add evidence → refine the claim.
Every challenge gets a live URL and shareable card, so the evidence follows the conversation wherever it goes.
Simple pricing
Start proving for free.
Public challenges stay open to everyone. Upgrade when you need a deeper evidence workflow.
Public
For everyday claims and shared debates.
$0
Free, not a trial
- Create public challenges
- Shareable live cards
- Source and counterevidence submissions
- AI-assisted claim refinement
Power users
Pro
For researchers, educators, and relentless fact-checkers.
$8 / month
Everything in Public
Private and unlisted challenges
Full evidence history
PDF and image exports
Saved source collections
Priority evidence processing
Questions, answered
Bring receipts
Put your next claim to the test.
Paste the claim, share the challenge, and let the strongest evidence move the conversation forward.