Grammar & punctuation checker

Grammar & Punctuation Checker is a mobile app that automatically checks spelling and punctuation across multiple languages, powered by AI autocorrect for fast, accurate editing. It highlights errors and offers suggested corrections for smooth communication on social media, messages, and emails.

Use it by typing or pasting text, selecting the language in settings, and reviewing color-coded results. Red marks indicate removals, yellow marks show insertions, and there is a two-stage check: spelling first, then punctuation. Regular checks cap at 1,000 characters, while Pro allows up to 100,000. Note that punctuation detection is about 70% complete and suggested placements may not always reflect intent.