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Grammar checker comparisons

LanguageTool vs. ProWritingAid

Integrations, team features and security side by side, then each product's plans, pros and cons.

Feature comparison of LanguageTool, ProWritingAid and Sapling
Feature LanguageTool ProWritingAid Sapling
Integrations
Microsoft Word YesYesYes
Microsoft Outlook NoYesYes
Google Docs YesYesYes
Products and features
Style guide NoYesYes
Tone prediction NoNoYes
Autocomplete NoNoYes
Snippets / macros NoYesYes
Suggested responses NoNoYes
Customization
Built for sales NoNoYes
Built for support NoNoYes
Multiple languages YesNoYes
Custom models NoNoYes
Security
HIPAA YesYesYes
SOC 2 Type II NoNoYes
API access YesYesYes
Self-hosting YesNoYes

Sapling is shown for reference.

LanguageTool

LanguageTool is a multilingual grammar and spell checker. It includes an open-source edition as well as a premium business edition. The key languages support included English, German, Spanish, French, and Portuguese.

Screenshot of example edits by LanguageTool

Plans

  • Free version provides basic grammar, punctuation, and style checking
  • Premium version has enhanced grammar, punctuation, and style checking as well as suggestions to improve style and tone, add-in for Microsoft Word, and add-on for Google Docs
  • Enterprise version provides everything the premium version does along with user management

Pros

  • Can detect of incorrect names and titles in e-mails as well as incorrect numbers
  • Supports multiple languages
  • Separately there exists an open-source offering

Cons

  • Free version only provides checking for 10,000 characters of text
  • Premium version only allows up to 100,000 characters per text field
  • Grammar checker has limited capabilities as it has rule-based recommendations
  • Not focused on business use cases

Reviews

LanguageTool has 7,370 ratings and 1,000,000+ users on their Chrome Web Store with an average rating of 4.8 stars out of 5 (as of May 2022)

ProWritingAid

ProWritingAid is a grammar and style checker that also provides reporting to improve your writing. It includes options for creative writing, business writing, and academic writing, with scoring of variety, readability, passive voice, and other indicators of writing health.

Screenshot of example edits by ProWritingAid

Plans

  • Free version provides basic grammar and spelling checks through its website and browser extensions
  • Premium version has no word count limits, a desktop app, a writers resource library, and unlimited writing reports
  • Premium Plus version has everything the premium version has along with 60 plagiarism checks per year
  • Enterprise plan for teams includes account management, custom integrations, and team analytics

Pros

  • Includes scoring on variety of axes
  • Enterprise plan provides term base items and style guide rules
  • Many integrations including for Microsoft office and Google Docs
  • Premium version offers a plagiarism checker

Cons

  • Not focused on business use cases
  • No snippets or macros

Reviews

ProWritingAid has 4,523 ratings and 200,000+ users on their Chrome Web Store with an average rating of 4.8 stars out of 5 (as of May 2022)

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