FactGuard
Evidence Over Opinion

Facts grounded in reason,
defended by evidence.

Instant cited verdicts and full reasoning — on-device or online. Your queries stay private; zero ads, zero tracking.

🧭 Reason-based 🔗 Cited sources ⚖️ Non-partisan 🔒 Privacy-first
Web app live now iOS app coming soon
Launch the web app Read our mission

Information moves faster than
verification can keep up.

Evidence-Based Fact Verification

A false claim can circle the world before a correction is written. AI has accelerated the pace — and the volume — of misinformation to a degree that individuals, newsrooms, and communities are no longer equipped to handle alone.

The problem

AI-generated content, viral misinformation, and the collapse of shared epistemic ground have made it harder than ever to distinguish verified facts from false claims — even for careful, well-meaning people.

Our stance

Claims are evaluated against evidence — not authority, not consensus, not partisan preference. We do not take sides. We take the side of what's verifiable, with our reasoning shown openly.

Our goal

Build the infrastructure — tools, frameworks, APIs — that makes cited, reason-grounded fact verification fast enough to matter in a world that moves at the speed of a share.

Why FactGuard is different

Most fact-checking tools give you an answer. We give you the reasoning.

Capability FactGuard Typical AI
fact-checkers
Transparent reasoning chain ✓ ✗
Cited primary sources ✓ ✗
On-device privacy option ✓ ✗
No ads & no tracking ✓ ✗
Graded confidence score ✓ ✗

Our principles

These are the commitments that govern every product, decision, and line of code we ship.

Transparent reasoning

We always show the why. A verdict without its reasoning is just an assertion — and assertions are precisely what we exist to scrutinize. Every conclusion is accompanied by the logic that produced it.

No black boxes

Cited evidence

Claims that cannot be sourced cannot be verified. Every verdict links to real primary sources — not paraphrases, not summaries. You can always check what we tell you, and judge it for yourself.

Real sources only

Calibrated confidence

Reality is rarely binary. We return a graded confidence score — not a blunt true/false — because intellectual honesty requires acknowledging degrees of certainty and evidence quality.

Graded verdicts

Non-partisan by design

Our tools apply the same standards to every claim regardless of its political origin. No editorial line, no agenda. Neutrality is not a disclaimer — it is an engineering decision.

Neutral by design

Manipulation-resistant

No ads. No sponsored verdicts. No affiliate relationships. Our revenue comes from users, not from parties with an interest in how claims are rated. Incentives matter.

No conflicts

What we're building

The FactGuard web app is live now — open it in any browser, no install needed. The iOS app and broader infrastructure are coming soon.

FactGuard App

LIVE on web · iOS coming soon

The flagship. Paste any claim, headline, or URL and receive an instant verdict from FactGuard's verification engine — with full reasoning and real sources attached. Quick, Thorough, or Private mode. Zero ads. Zero tracking.

Launch the web app Coming soon to the App Store

Fact-Check API

Coming soon

Programmatic claim verification any product or developer can integrate. Submit a claim, receive a structured verdict with confidence score, cited sources, and reasoning — all via a clean REST API.

Developers

MCP Server

Coming soon

A Model Context Protocol server that lets AI assistants verify facts in real time — with sources and reasoning attached to every result.

AI Ecosystem

FACTVerification AI Framework

Coming soon

An open framework for building evidence-based verification applications. Every assertion carries its reasoning chain and source attribution — no black boxes.

Open Framework

Built to cut through the noise

Every feature is designed around one goal: a fast, trustworthy answer you can actually verify.

Your queries never leave your iPhone

Enable Private mode and verification runs entirely on your device. No server, no log, no exposure — fact-check even the most sensitive topics with full confidence.

On-device, private

Native iOS — not a web wrapper

Built from the ground up in SwiftUI for iPhone and iPad. Crisp animations, Share Sheet integration, Dynamic Type support, and a feel that belongs on your home screen — not a Chrome tab.

Native SwiftUI

Instant verdicts, real sources

Submit any claim, headline, or URL — get a sourced verdict in seconds, with the full reasoning chain shown and primary sources you can check yourself.

Core

Three verification modes

Quick for fast, everyday checks. Thorough for deeper, more rigorous analysis. Private for on-device verification — your claims never leave your phone.

Verification modes

Bias detection

FactGuard surfaces the framing and potential bias in a claim alongside the verdict — so you understand not just the accuracy finding, but how language shapes what you believe.

Analysis

Shareable verdict cards

Export any result as a polished verdict card — built to spread verified facts, not just claims. Share to Stories, Messages, or anywhere with one tap.

Share

Zero ads. Zero tracking. Ever.

No advertising SDK, no IDFA, no ATT prompt, no third-party analytics. FactGuard is a tool — not a data broker.

Zero tracking
Coming soon to the App Store

Simple, honest pricing

Start free. No credit card. Upgrade only when you need more.

Free
$0
forever
  • ✓ 5 fact-checks per day
  • ✓ Quick checks
  • ✓ Private on-device mode
  • ✓ Fact Feed access
  • ✓ Thorough verification
  • ✓ Unlimited checks
  • ✓ Shareable verdict cards
Launch the web app
★ Best value
FactGuard Pro — Annual
$36.99
per year · $3.08/mo
Save ~38% vs monthly
  • ✓ Unlimited fact-checks
  • ✓ Thorough verification + all modes
  • ✓ Shareable verdict cards
  • ✓ Fact Feed — full access
  • ✓ Priority new features
  • ✓ 1-week free trial · cancel anytime
Launch the web app
FactGuard Pro — Monthly
$4.99
per month
  • ✓ Unlimited fact-checks
  • ✓ Thorough verification + all modes
  • ✓ Shareable verdict cards
  • ✓ Fact Feed — full access
  • ✓ 1-week free trial · cancel anytime
  • ✓ No annual savings
Launch the web app

Subscriptions managed via the App Store. Cancel anytime via App Store Settings → Subscriptions.
Price shown in USD. Actual price may vary by region.

Accuracy deserves
better infrastructure.

Start fact-checking with real sources and full reasoning today. Free, no credit card, no tracking — before you even consider upgrading.

Launch the web app

iOS app coming soon to the App Store