Simple pricing. No credit expiration.
Pick a plan when you're ready. Our free tier covers casual checking — no signup, no credit card.
FREE
$0
Free tier — no expiration, no signup.
- ✓ 3 checks per day
- ✓ 1,000 words per check
- ✓ 2 of our 4 detection models
- ✓ Overall probability score
- ✓ English + Spanish
- – Humanizer
- – Sentence-level highlights
- – All 4 models in parallel
- – Share links without watermark
Try Free — No Signup ⭐ MOST POPULAR PRO
$9.99 /month or $79 /year (save 34%)
Everything in Free, plus:
- ✓ Unlimited checks (fair use)
- ✓ 5,000 words per check
- ✓ All 4 detection models in parallel
- ✓ Sentence-level highlights
- ✓ Humanizer included (200/day fair use)
- ✓ 7-day result history
- ✓ Share links — no watermark
- ✓ All 7 languages
- ✓ Email support (48h)
Start 7-Day Free Trial No credit card. Full refund through Stripe Customer Portal within 7 days.
⏳ 247 of 1,000 left
LIFETIME
$39 one-time
Everything in Pro, with caveats:
- ✓ All Pro features
- ✓ Pay once, access for the lifetime of the product
- ✓ 50 checks/day and 50 humanizes/day (hard limits)
- – No API access
- – Major future features may require separate purchase
Get Lifetime Access 14-day full refund.
Compare all features
| Feature | Free | Pro | Lifetime |
|---|
| Daily checks | 3 | Unlimited (fair use) | 50 / day |
| Words per check | 1,000 | 5,000 | 5,000 |
| Detection models | 2 | 4 | 4 |
| Sentence-level highlights | — | ✓ | ✓ |
| Humanizer | — | ✓ | 50 / day |
| Premium Humanizer add-on | — | $5/mo | — |
| History | — | 7 days | 7 days |
| Share without watermark | — | ✓ | ✓ |
| Languages | EN + ES | All 7 | All 7 |
| Email support | — | 48 h | — |
| API access | — | — | — |
We're honest about what AI detectors can and can't do.
No detector is 100% accurate — including ours.
Independent benchmarks put leading AI detectors at 76–88% accuracy.
That's why we run 4 models in parallel: when they agree, you can trust the result.
When they disagree, we tell you.
How AI Detectors Work →
Pricing FAQ
What happens when my Pro subscription ends?
Your account stays. You can still log in and view your detection history. You're downgraded to Free (3 checks/day) until you resubscribe.
Is Lifetime really lifetime?
One-time payment. Access for the lifetime of the product. Major v2+ features may require a separate purchase. We always honor your current feature set within fair use.
How does the 7-day free trial work?
Click "Start trial" — no credit card. Get full Pro features for 7 days. We email you on day 5 and day 6. On day 7, your account converts to Free automatically.
Can I get a refund?
How does the 4-model parallel check work?
Every detection runs through 4 different models simultaneously: RoBERTa OpenAI, Sapling, Gemini text classification, and our internal classifier. You see each model's score plus a divergence indicator showing how much they agree.
Do you store my text?
By default, no. Free tier: zero retention beyond 24 hours. Pro tier: 7 days history (can disable). API: discarded after the call returns. Details in our
Privacy Policy.
Is there a student discount?
Use code STUDENT50 for 50% off Pro Monthly (verify .edu email). Annual and Lifetime are already discounted; the code doesn't stack.
What about the API?
API tiers start free (100 checks/mo) and scale to Enterprise. Web Pro users need a separate API plan for programmatic access. See
API pricing → Still deciding? Try the detector free — no signup needed.
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