On-device English grammar checker, quick fixes & optional AI writing polish.
Grammarlyzer is an English grammar checker and proofreader for writing on Android. Check spelling, grammar, punctuation and word use in emails, essays, messages and other drafts. Suggestions appear in the editor with explanations, so you can choose what to change.
Check English grammar on-device
• Grammar checks run on your device. Your draft is not sent to a server for grammar checking.
• No sign-in is needed for on-device checks.
• Review explanations, then apply or dismiss each correction.
• Add words to a personal dictionary.
• Choose an English dialect: American, British, Australian, Canadian or Indian.
Optional AI writing polish
Use AI Polish when you want to rewrite a draft. Choose Formal, Casual or Concise, then review the result before using it. AI Polish requires sign-in and sends the draft text and selected options to cloud AI for processing. Pro requests may also include your personal-dictionary terms as protected words. Grammar checking and AI Polish are separate features.
Free and Pro
The free app includes banner ads and a limited AI Polish allowance. Free AI Polish supports up to 1,000 characters per request. Grammarlyzer Pro removes ads, supports requests up to 10,000 characters, and includes alternative rewrites and synced Polish history.
Monthly and yearly subscriptions are available. The current price and subscription terms are shown in Google Play before you buy. Payment is charged to your Google Play account. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. Manage or cancel in Google Play.
Privacy
Grammar checks run on-device. AI Polish processes text you choose to submit. Optional account features may sync data. Read our privacy policy at https://youngseokoh.github.io/grammarlyzer-privacy/.
Novedades
• Improved mobile editing, draft reliability, and long-document grammar checks.
• Added English dialect preferences and clearer sign-in for cloud AI Polish.