Best Grammar Checkers Software for Small Business

6 Grammar checkers tools ranked by verified entry price, cheapest first. Every price comes from the company’s official pricing page (latest check October 11, 2026). The lowest listed price is Wordtune Advanced at $6.99 per month.

  1. Wordtune Advanced

    Advanced: $6.99 per month · billed annually

    Best for: Writers who want AI rewrites and summaries on a budget.

    See Wordtune Advanced pricing

  2. QuillBot Premium

    Premium: $8.33 per month · billed annually

    Best for: Students and writers paraphrasing and grammar-checking text.

    See QuillBot Premium pricing

  3. ProWritingAid Premium

    Premium: $10 per month · $120 · billed yearly

    Best for: Writers who want deep style and line-editing reports.

    See ProWritingAid Premium pricing · ProWritingAid Premium alternatives

  4. Linguix Pro

    Pro: $11.67 per month · $140 · billed annually

    Best for: Everyday writers wanting grammar checks and rewriting.

    See Linguix Pro pricing · Linguix Pro alternatives

  5. Sapling Pro

    Pro: $12 per month · billed annually

    Best for: Individuals wanting an AI writing assistant plus AI detector.

    See Sapling Pro pricing · Sapling Pro alternatives

  6. Paperpal Prime

    Prime: $25 per month · billed monthly

    Best for: Academic writers polishing research papers.

    See Paperpal Prime pricing

All 12 Grammar checkers comparisons

Ranking is by the entry price we verified, not by features or commissions. Units differ between some tools (per user vs per account), so check the unit line under each price. Higher plans are available for every tool.