Pick a pack by length. Pay for what you scan.
1 credit = 1 character, billed on actual length. Credits never expire. One free daily scan (up to 1,000 characters). New accounts get another 1,000 credits.
About payments
Online payments are being connected. New accounts still get 1,000 credits and a daily free scan.
Invite a friend: 1,000 credits each. When they complete a real top-up, you get 20% of what they paid in credits.
How billing works
- Scans are billed per character: 1 credit = 1 character (including punctuation and spaces). Estimated cost is shown before you submit.
- One-click rewrite is 2 credits / character, then you can retest immediately.
- One free scan per day up to 1,000 characters, no credits used. The homepage also has a no-login trial (once per IP per day).
- Failed scans caused by an unavailable detector do not use credits. Credits never expire and cannot be withdrawn. More detail in the credits guide.