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.
For comms teams: professionals wanting writing quality assurance across all platforms.
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
When to choose this
Choose Grammarly when writing quality, consistency, and tone checking across all team communications matter — it integrates across browsers and apps better than any alternative.
Who should look elsewhere
Grammarly is a writing quality layer, not a content creation tool. If you're looking for something to help you draft from scratch, generate ideas, or handle strategic communications, it won't do that — you'll need Claude or ChatGPT alongside it. It's also less valuable for communicators whose primary output is highly technical, legal, or highly stylised writing where its suggestions may clash with specialist conventions. Teams working primarily in languages other than English will find its capabilities significantly reduced.
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
Governance & data
Governance information is based on publicly available vendor documentation. Verify with your vendor before procurement decisions.
Integrations
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