Humanize AI vs QuillBot

Humanize AI

Treat this as a rewrite-and-check bundle, not as a guaranteed way to beat detectors, because detector behaviour shifts constantly and no vendor controls it. For graded academic work the consequences land on you, not the tool.

Pros

• +Bundles detector, plagiarism and grammar tools instead of charging for each
• +API included from the $14 tier, uncommon in this category
• +Side-by-side comparison makes each rewrite reviewable
• +Free tier is large enough to judge output quality before paying

Cons

• −Free plan caps every individual check at 300 words
• −Humanizer and AI-writer budgets are separate, so one exhausts first
• −Rewrites tend to flatten voice and can introduce awkward phrasing
• −Effectiveness against detectors is unstable and impossible to verify

QuillBot

QuillBot remains the fastest way to reword a paragraph you have already written, and the free tier is enough for occasional use; Premium at roughly $8 to $20 a month depending on term buys the extra modes, longer inputs and the plagiarism checker that students actually want. Against a general chatbot it wins on speed and a purpose-built interface, not on writing quality, and against Grammarly it is cheaper but narrower.

Pros

• +Free tier includes grammar checking, two paraphrase modes, translation and AI detection
• +Extensions and apps for Chrome, Windows, macOS, Safari, iOS and Android keep it inside the writing surface
• +Paraphrase modes and a synonym slider give more control than a one-shot rewrite prompt
• +Backed by Learneo, a large education group, rather than an anonymous operator

Cons

• −Month-to-month Premium is about 2.4 times the annual rate, so the headline low price assumes a year up front
• −The site blocks automated access, so none of the figures here come from its own pricing page
• −The App Store listing itself disagrees on how many Premium paraphrase modes exist (8 versus 10+)
• −The heavy student use and the AI detector attract academic-integrity scrutiny that can rebound on users

Is Humanize AI cheaper than QuillBot?

On published entry prices, Humanize AI starts lower — $14/mo against $19.99/mo for QuillBot. Entry price is the lowest paid plan as we last verified it; what each plan includes differs.

Does Humanize AI or QuillBot have a free tier?

Both: Humanize AI has a free tier, and QuillBot has a free tier.

Which has a public API, Humanize AI or QuillBot?

Humanize AI ships a public API, as of our last verification. A public API for QuillBot is not confirmed by us — check its developer docs before you plan an integration.