CoWriter AI vs QuillBot

CoWriter AI

Bundles the things a student actually opens five tabs for — drafting, citations, plagiarism check — into one $11.99 workspace, and the free citation generators are useful on their own. The terms are where this turns sour: no refunds under any circumstances and an explicit request that you waive chargeback rights. That, plus the AI-detection-evasion pitch, makes it a tool to enter with eyes open.

Pros

• +Citation generators for APA, MLA, Chicago, IEEE, Harvard, Vancouver, CSE and more
• +Plagiarism detection and grammar checking alongside drafting
• +Free standalone tools usable without a subscription
• +Named legal entity, ProtonLabs Technology Inc, in the footer

Cons

• −Terms state all sales are final with no refunds, credits or pro-rata reimbursement
• −Terms ask users to waive the right to dispute or charge back any transaction
• −Markets AI-detection evasion, which conflicts with most academic integrity policies
• −No country, address or API published

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 CoWriter AI cheaper than QuillBot?

On published entry prices, CoWriter AI starts lower — $11.99/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 CoWriter AI or QuillBot have a free tier?

QuillBot has a free tier; CoWriter AI has paid plans only.