Grammarly vs Superhuman
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The Winner
Top Pick
Grammarly
Wins for overall value, user satisfaction, and Fast, polished business writing.
4.6 Rating
Yes Free Tier
$30/mo Starting Price
30M+ Users
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Quick Comparison
| Criteria |  Grammarly |  Superhuman |
|---|---|---|
| Free Tier | Yes Best | No |
| Starting Price | $30/mo | $30/mo |
| User Rating | 4.6 | 4.5 |
| Review Count | 287,078 Best | 1,859 |
| Free Trial | 7 days Best | No |
| Annual Discount | 60% Best | 17% |
| Best For | Fast, polished business writing | High-volume email professionals |
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Feature Breakdown
Grammarly Key Features
- 8 specialized AI agents (Aug 2026): Reader Reactions, Grader, Citation Finder, Paraphraser, etc.
- New document-based interface with AI assistant
- Grammar, spelling, and punctuation checks
- Generative AI writing (100-1,000 prompts/month)
- Full-sentence rewrites and tone adjustments
- Plagiarism detection and AI content detection
- Cross-platform: browser, desktop, mobile, MS Office, Google Docs
Superhuman Key Features
- Agentic AI that writes drafts, labels emails, and answers questions proactively
- Auto Drafts: AI writes follow-up emails in your voice without prompting
- Write with AI: Drafts across inbox, calendar, and web with online research capability
- Ask AI assistant: Left sidebar access for notes, scheduling, and questions
- Auto Labels: AI categorizes every email (response needed, waiting on, meetings, marketing)
- Voice and Tone Match: Adapts writing style based on previous conversations
- 100+ keyboard shortcuts for lightning-fast email processing
- Split Inbox with custom tabs based on Auto Labels
- CRM integration with HubSpot, Salesforce, and Pipedrive
- Works with Gmail and Outlook on desktop and mobile (iOS, Android)
Grammarly
Strengths
- Industry-leading accuracy
- Generous AI prompt quotas
- Truly cross-platform
- Documented ROI
Limitations
Full Grammarly Review →
- English-only limitation
- Can be overly prescriptive
- Expensive for individuals
Superhuman
Strengths
- Auto Drafts write in your voice
- 100+ keyboard shortcuts
- 59% faster email writing
- Intelligent Auto Labels
Limitations
Full Superhuman Review →
- Premium pricing
- No unified inbox
- Steep keyboard learning curve
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Grammarly Overview
Grammarly is an AI-powered writing assistant that catches grammar, spelling, and punctuation errors while offering tone adjustments, full-sentence rewrites, and plagiarism detection. With a generous free tier (100 AI prompts/month) and an affordable Pro plan (1,000 prompts), it works seamlessly across browsers, desktop apps, MS Office, and Google Docs. Enterprise teams get custom AI models, advanced analytics, and SSO starting at 150+ seats.
Best For:
- Fast, polished business writing
- Teams requiring brand consistency and style guides
- Users working in fast-paced environments prioritizing efficiency
- Organizations needing measurable ROI and analytics
- English-language writers across all variants (US, UK, Canadian, Australian, Indian)
- Companies requiring enterprise security (SSO, audit logs)
- Teams of 3-150+ members needing collaboration features
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Superhuman Overview
Superhuman transforms email productivity with AI-powered Auto Drafts, Auto Labels, and 100+ keyboard shortcuts. Best for executives processing 100+ emails/day seeking 59% faster email writing. Premium pricing for premium productivity.
Best For:
- High-volume email professionals
- Sales teams needing CRM integration
- Power users who value speed and keyboard shortcuts
- Teams willing to invest in email productivity ($30-40/user/mo)
- Organizations using Gmail or Outlook (both supported)
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The Verdict
4.6/5
Winner Rating
Grammarly is our top pick for most users, thanks to its higher user ratings.
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Grammarly vs Superhuman FAQ
Both Grammarly and Superhuman are excellent tools. Grammarly is better for Fast, polished business writing, while Superhuman excels at High-volume email professionals. Your choice depends on your specific needs and budget.
Grammarly pricing: Free tier available. Superhuman pricing: $30/month. Grammarly is more affordable at the entry level, but compare features at each tier to find the best value for your needs.
Yes, many teams use multiple tools for different purposes. Grammarly might handle Fast, polished business writing, while Superhuman covers High-volume email professionals. Check integration options for both tools.
Both offer robust support. Grammarly provides standard support, while Superhuman offers comprehensive support. Enterprise plans typically include dedicated support for both.
Consider switching if Superhuman better fits your current needs. Key factors: High-volume email professionals, pricing alignment, and team workflow compatibility. We recommend trialing Superhuman before making a full switch.
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