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Harper vs SpellBoy

Harper

8.3 #7 in Grammar checkers

SpellBoy

5.8 #56 in Grammar checkers

	Harper	SpellBoy
Free plan	Yes	Yes
Free trial	No
Paid from	Free	Free
Platforms	Android, api, extension, iOS, Linux, macOS, Web, Windows	Web
Free plan	Yes	Yes
Browser extension	Yes
Desktop app	Yes
Style suggestions	Yes
Languages supported	1
Supported languages		13 languages

Listed together in Best Grammar Checkers Best AI Grammar Checkers