Grammarly
Real-time writing assistant for grammar, tone, and clarity across 500,000+ apps
Grammarly is the most established AI writing assistant, working everywhere you type - email, Google Docs, Slack, social media, and more. Beyond grammar and spelling, Grammarly analyses tone, suggests clarity improvements, checks for plagiarism (Premium), and helps adjust writing for different audiences. The tool's "goal setting" feature lets you specify intent, audience, and formality, tailoring suggestions accordingly. For business users, Grammarly can maintain brand voice consistency across teams. With 30+ million daily users, it's become the default writing quality tool for professionals who want real-time feedback without disrupting workflow.
Best for
- • Professionals wanting writing quality assurance across all platforms
- • Teams needing brand voice consistency
- • Non-native English speakers
Pricing
Free basic; Premium £12/month; Business £15/month per member
Annual billing available at discount
Pricing last verified Feb 2026 — check vendor site for current rates.
What works well
- + Works everywhere
- + Real-time suggestions
- + Plagiarism checking
- + Strong brand voice features
Watch out for
- - Premium required for best features
- - Can be overly prescriptive
- - Specialised industry terms may confuse it
Key features
- • Real-time grammar and spelling correction across apps
- • Tone detection and adjustment
- • Clarity and conciseness suggestions
- • Plagiarism detection (Premium)
- • Brand voice and style guides (Business)
- • Goal-based writing suggestions
Integrations
Available on
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