Grammarly alternatives
Grammarly Pro is listed at $12/month, and its privacy policy says it uses collected information to train its AI unless you switch off the training control. If you want a cheaper tool, one built for books, or one that promises not to train on your writing, here are the options we track.
| Alternative | Free plan | Paid from | Platforms | Used to train AI? |
|---|---|---|---|---|
| Grammarly (for reference) | Yes | $12.00/mo | iOS, Android, Web, Mac, Windows | Possibly. The privacy policy says Superhuman (Grammarly) uses collected information to train its AI models, and you can turn off training on your content with a control in account settings. |
| Rytr | Limited | $7.20/mo | Web, iOS | Unknown. Rytr's privacy policy doesn't say whether your content is used to train AI models. |
| QuillBot | Limited | $8.33/mo | Web, Mac, Windows, iOS, Android | Possibly. QuillBot's help center says inputs and usage data are used for training by default. Account holders can opt out in the browser extension's Data and Privacy settings, and Team Plan inputs are never used. |
| ProWritingAid | Limited | $10.00/mo | Web, Mac, Windows | No. ProWritingAid's Responsible AI page says, "We will never use your writing to train our algorithms." |
| Sudowrite | No | $10.00/mo | Web | No. Sudowrite's FAQ says, "we do not use your writing to train AI models." |
"Paid from" is the lowest annual-equivalent monthly price we could verify (USD). Sorted by free plan, then price.
Rytr
AI writing assistant for emails, posts and pages in your own voice, now with relationship follow-up tools.
Free plan: Free plan with 10,000 characters per month and 40+ writing use cases.
Pricing: Lite $9/month, Personal $19/month, Pro $49/month (monthly prices); yearly billing saves 20%.
Best for: Solo business owners who write a lot of short marketing copy and follow-ups.
QuillBot
AI paraphraser, grammar checker and summarizer for rewriting and tightening text.
Free plan: Free plan: paraphrase up to 100 words in 2 modes, basic grammar fixes and basic summaries.
Pricing: Premium $8.33/month billed annually (US pricing page); monthly billing costs more.
Best for: Students and professionals who want quick rewrites and summaries.
ProWritingAid
Grammar checker and manuscript editor for fiction and nonfiction writers, with AI critiques and rephrasing.
Free plan: Free plan with Story Canvas, writing sessions and limited reports.
Pricing: Premium $10/month billed yearly ($120/year) or $30 monthly; Premium Pro $12/month yearly or $36 monthly; Lifetime Premium $399 one-time.
Best for: Writers working on books, blogs or long documents who want detailed editing reports.
Sudowrite
AI writing partner for fiction: brainstorm, draft, describe and get feedback on stories.
Free plan: No free plan; free trial with no credit card.
Pricing: Hobby & Student $10/month, Professional $22/month, Max $44/month (monthly prices; yearly billing is up to 50% off).
Best for: Fiction writers and hobbyists working on a novel or short stories.
FAQ
Is there a free alternative to Grammarly?
ProWritingAid, QuillBot and Rytr all have free plans with limits. Sudowrite offers a free trial instead.
Which Grammarly alternative doesn't train AI on my writing?
ProWritingAid's Responsible AI page and Sudowrite's FAQ both say they don't use your writing to train AI models.
Which is best for writing a book?
ProWritingAid focuses on manuscripts with story critiques and editing reports, and Sudowrite is built for fiction drafting.