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Writing and grammar assistant: what 5 tools cost

Checks grammar, tone and clarity as you write. Every price is the plan a buyer actually lands on to get this capability — not the headline figure on the pricing page, and not the free tier that leaves it out.

5 tools, 5 plans pricedfrom $122 more with no published priceread 2026-09-26

Grammarly Premium Advanced grammar, tone, and clarity checking $12/mo PremiumMonthly premium access Details → QuillBot Writing Assistant AI writing tool for paraphrasing, grammar checking, tone adjustment, and citation generation — helps writers improve and clarify text across academic, professional, and creative writing. $19.95/mo Premium MonthlyThe published Premium tier with full feature access. Details → Rytr Copysmith AI writing platform with brand voice learning and multi-channel content generation $24.16/mo Premium (yearly) Details → Content Optimization GetGenie Rewrites and scores a draft against the pages currently ranking for its target keyword. $49/mo Pro Details → Content Optimization Assistant Frase.io Scores a draft against the topics competing pages cover, and shows what is missing from it. $129/mo Professional Details →

This page compares what each tool does and what it costs. It does not name a winner: picking one honestly needs a researched verdict for every option, and the corpus does not carry those yet — so nothing here is ranked by anything but price.

When these prices change, we send a note

Vendors change plans and quietly move capabilities between tiers. We re-read the terms and send one note a week with what moved — including writing and grammar assistant.

One note a week, every figure dated and linked to its source. Unsubscribe in one click; we never sell or share the address.