How can we help?
Answers to the common questions first. If yours isn't here, email us — a person reads every message. Where an answer touches a policy, it links the legal page, and the legal page is the authority if the two ever disagree.
Getting started
What HumanFlow does
It rewrites AI-drafted text so it reads like a person wrote it, and scores text for AI detection with the reasoning behind the number.
Running your first rewrite
Paste a draft, pick a tone, run it — then read the output against the original rather than accepting it wholesale.
Reading a detection result
Each sentence is marked human, AI, or mixed. Treat it as a prompt to look at specific lines, not as a verdict.
Plans and limits
Word limits explained
There are two separate limits — how many words a month, and how many in one go — and the second is the one people hit first.
What counts as a word
Words are counted by whitespace on the text you submit. Only text you actually process is deducted.
When your allowance resets
Monthly allowances reset at the start of each calendar month in UTC, and unused words do not carry over.
Choosing a plan
Work out your per-document length first — the per-scan cap decides more than the monthly total for most people.
Tones and output
Billing
Payments and billing status
Card payments are not live yet. Plans are published, but nothing takes money and no subscription is charged.
Cancelling a plan
Cancel from your account at any time. You keep access until the end of the period you have paid for.
Refunds
Full refund within 14 days of a first payment, for any reason. Unintended renewals are refundable within 14 days too.
Privacy and data
What happens to the text you paste
It is processed to produce your result and we do not sell your personal data. The free browser tools never send text anywhere at all.
Deleting your account
Request deletion from the account deletion page. Requests complete within 30 days; some records are kept only where the law requires.
Developers
Still stuck?
Email us what happened and what you expected. We usually reply within a day.