Simple, Transparent Pricing
Clearly below Quillbot, Undetectable.ai, and StealthGPT — with more features.
Free
$0
forever
- All 20 web tools
- 10,000 chars/day
- 6 languages
- 10 req/min
- No API key
- No batch processing
Starter
$9
/ month
- Everything in Free
- 500,000 chars/month
- 1 API key
- 60 req/min
- Usage dashboard
- No batch processing
Most Popular
Pro
$19
/ month
vs Quillbot $19.95 · Undetect. $29.99
- Everything in Starter
- 3,000,000 chars/month
- 5 API keys
- 200 req/min
- Batch processing
- Priority support
Business
$49
/ month
vs Undetect. $49.99 · Copy.ai $49
- Everything in Pro
- Unlimited chars
- 20 API keys
- Unlimited req/min
- White-label ready
- SLA commitment
API Pay‑As‑You‑Go
Need API access without a monthly plan? Top up your balance and pay per usage.
$0.001 per 1K chars~$1 per million characters processed
Monobank · Visa/MCMin top-up $5 · instant activation
Instant API keyGenerated in your dashboard immediately
How We Compare
| Feature | TextHumanize | Quillbot | Undetectable.ai | StealthGPT |
|---|---|---|---|---|
| Starting price | $9/mo | $19.95/mo | $29.99/mo | $14.99/mo |
| 100% offline / no data leaks | ✅ | ❌ cloud | ❌ cloud | ❌ cloud |
| 25 languages | ✅ | Partial | EN only | EN only |
| Built-in AI detector | ✅ | ✅ | ✅ | ✅ |
| Watermark detection | ✅ | ❌ | ❌ | ❌ |
| API access | ✅ from $9 | ✅ Pro+ | ✅ Pro+ | ✅ |
| 20+ text tools | ✅ | 7 tools | 1 tool | 1 tool |
| Open source library | ✅ | ❌ | ❌ | ❌ |
Frequently Asked Questions
What payment methods?
Visa/Mastercard and Ukrainian bank transfers via Monobank Acquiring — secure and instant.
Can I cancel anytime?
Yes. Your plan stays active until end of billing period. No long-term contracts.
What counts as a "character"?
Any character in input text — spaces included. A typical paragraph ≈ 700 chars.
Is the API billed separately?
API quota is included in your plan. Extra usage is billed at $0.001/1K chars via pay-as-you-go balance.
Refund policy?
7-day full refund if the service doesn't work as described. Email contact@texthumanize.link.
Invoice / VAT receipt?
Available in your dashboard after payment. Contact us for Ukrainian B2B invoices (ФОП).