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Editorial comparison for operators. Ratings are sample data unless verified.
| Attribute | Shortwave | Grammarly |
|---|---|---|
| Type | tool | tool |
| Summary | AI-powered Gmail client that automates email triage, drafting, and scheduling. Built for Gmail power users who need intelligent inbox management without leaving their workflow. | AI-powered writing assistant that checks grammar, tone, and clarity across emails, docs, and web forms. Grammarly for business helps operators ship polished customer-facing writing at scale. |
| Pricing | freemium · See vendor site — sample data | freemium · See vendor site — sample data |
| Free trial | Yes | Yes |
| API | No / not listed | No / not listed |
| Open source | No | No |
| Editor rating | — | — |
| Categories | Email & Communication, Productivity, AI Tools | Writing & Content, Communication, Productivity |
| Key features | AI-powered email response suggestions and draft generation · Smart email categorization and priority inbox (verify-on-vendor-site for algorithm details) · Keyboard-first interface with batch operations and shortcuts · Email scheduling and snooze functionality with smart timing · Automation rules for email routing and labeling | Real-time grammar, spelling, and punctuation checking across web forms, email, and docs · Tone detection flags passive voice, formality mismatches, and emotional clarity issues · Custom style guides and brand voice settings (verify on vendor site for Business tier) · Browser extension integration with Gmail, Slack, LinkedIn, Twitter, and web forms · Plagiarism detection and citation tools (Premium tier; verify current availability) |
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