Best Grammarian PRO3 Alternatives in 2026
Updated
20 apps from grammar checkers ranked against Grammarian PRO3 on the same published basis.
- 1Grammarian PRO3 vs LanguageTool
- 2Grammarian PRO3 vs Grammarly
- 3Grammarian PRO3 vs Trinka
- 4Grammarian PRO3 vs MerciApp
- 5Grammarian PRO3 vs Sapling
- 6Grammarian PRO3 vs Wordvice AI
- 7Grammarian PRO3 vs Harper
- 8Grammarian PRO3 vs ProWritingAid
- 9Grammarian PRO3 vs Scribbr Grammar Checker
- 10Grammarian PRO3 vs Linguix
- 11Grammarian PRO3 vs Duden-Mentor
- 12Grammarian PRO3 vs iGrammar
- 13Grammarian PRO3 vs Grammar Guru
- 14Grammarian PRO3 vs Cordial
- 15Grammarian PRO3 vs Rechtschreibprüfung24
- 16Grammarian PRO3 vs TextGears
- 17Grammarian PRO3 vs GemType
- 18Grammarian PRO3 vs Korr
- 19Grammarian PRO3 vs WritingTool
- 20Grammarian PRO3 vs Lexicon
Grammarian PRO3 alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | LanguageTool | 8.2 | Free plan | Free | Browser, iOS, Mac, Windows |
| 2 | Grammarly | 8.0 | Free plan | $12/mo | Android, iOS |
| 3 | Trinka | 8.0 | Free plan | API, Browser, Mac, self-hosted, Web, Windows | |
| 4 | MerciApp | 8.0 | Free plan | €12/mo | Android, Browser, iOS, Mac, Web, Windows |
| 5 | Sapling | 7.9 | Free plan | $5/mo | API, Browser, self-hosted, Web, Windows |
| 6 | Wordvice AI | 7.9 | Free plan | $0.70/mo | Browser, Mac, Web, Windows |
| 7 | Harper | 7.9 | Free plan | Free | Android, API, Browser, iOS, Linux, Mac, Web, Windows |
| 8 | ProWritingAid | 7.8 | Free plan | $10/mo | Browser |
| 9 | Scribbr Grammar Checker | 7.8 | Free plan | Free | Browser, Web |
| 10 | Linguix | 7.8 | Free plan | $5/mo | Android, API, Browser, iOS, Web |
| 11 | Duden-Mentor | 7.8 | Free plan | €2.99/mo | Browser, Mac, Web, Windows |
| 12 | iGrammar | 7.8 | Free plan | $10/mo | Android, API, Browser, iOS, Mac, Web |
| 13 | Grammar Guru | 7.8 | Free plan | $1/mo | Browser, Linux, Mac, Web, Windows |
| 14 | Cordial | 7.7 | Free plan | Browser, Web, Windows | |
| 15 | Rechtschreibprüfung24 | 7.6 | Free plan | $300/mo | Web |
| 16 | TextGears | 7.6 | Free plan | $2.48/mo | API, Web |
| 17 | GemType | 7.6 | Free plan | Free | Windows, Mac, Linux, Web |
| 18 | Korr | 7.5 | Free plan | Free | Browser, Web, Windows |
| 19 | WritingTool | 7.5 | Free plan | Free | Linux, Mac, Windows |
| 20 | Lexicon | 7.5 | Free plan | Free | Browser, Linux, Mac, Windows |
Make your app an alternative to Grammarian PRO3
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Grammarian PRO3 alternatives
What is the best alternative to Grammarian PRO3?
LanguageTool, number 1 in grammar checkers with a score of 8.2 out of 10. The others here: Grammarly, Trinka, MerciApp and 16 more.
What is the best free alternative to Grammarian PRO3?
LanguageTool is the best-ranked alternative with a free plan. 20 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.