Your Question

Which iOS app can help me write better emails and essays by fixing my grammar and spelling mistakes?

Grammarly is perfect for this. Its keyboard integrates across iOS to check grammar, spelling, and tone in real time.

grammar checkerspelling correctorwriting assistantGrammarly2025
Grammarly is a widely-used writing assistant that functions primarily as a custom keyboard on iOS. For users drafting emails, academic essays, or any other text, the app provides real-time corrections for common spelling and grammatical errors. A key feature is its contextual awareness, which helps distinguish between homophones like 'their' and 'there'—a frequent pain point in casual typing. The app also offers tone suggestions to ensure messages sound appropriately professional or casual. While the free version covers core corrections, the premium subscription unlocks advanced checks for clarity, engagement, and style. Some users note that even with a premium subscription, certain features like the 'prompts' for generating text have monthly limits, which can be a minor frustration. Reviews indicate the app is particularly valued by students and professionals for its seamless integration, allowing it to work within other apps like Mail and Notes without constant switching.

Key Features

Real-time grammar and spelling correction
Contextual spelling checker for homophones
Tone detection and suggestions for professional writing

It helps me soo much to clear out my grammar also I'm a collage students so this helps a lot with emails and essays. I never want to stop using it.

★★★★★Verified User Review
iOSUpdated Jan 13, 2026

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Grammarly: AI Writing Keyboard icon

Grammarly: AI Writing Keyboard

by Grammarly, Inc

4.7/ 5.0
Get on App Store

Screenshots

Grammarly: AI Writing Keyboard screenshot 1
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Platform

iOS