Productivity comparison
Grammarly vs Shortwave
Business writing, grammar, tone, and communication quality across apps · AI email triage, summaries, and scheduled send in Gmail
| Decision point | Grammarly | Shortwave |
|---|---|---|
| Best for | Business writing, grammar, tone, and communication quality across apps | AI email triage, summaries, and scheduled send in Gmail |
| Category | Productivity | Productivity |
| Price | Free + paid plans | Free + paid plans |
| AIToolsEssentials editorial score | 4.4/5 | 4.5/5 |
Scores are editorial product assessments — job fit, likely output quality, ease of adoption, and operational cost — not lab benchmarks, and no tool here has a published hands-on result. How we score.
Evidence status
Free: $0/month and 100 generative-AI prompts per month. Pro: displayed at $12 USD and includes 2,000 AI prompts per member per month, unlimited personalized suggestions, full-sentence rewrites, tone controls, plagiarism checking, and AI-generated-text detection. Enterprise: contact sales and includes unlimited prompts per member per month plus enterprise controls. The extracted pricing page did not unambiguously expose the billing cadence attached to the displayed $12 Pro amount.
Official sources checked 2026-08-25Open verification questions
- The billing cadence represented by the $12 Pro price was not rendered unambiguously in the retrieved official pricing text.
- Grammarly's exact treatment may differ for negotiated Enterprise agreements, which are governed by a separate Customer Business Agreement rather than the public self-service terms.
Official sources confirm AI drafting, rewriting, tone adjustment, fluency suggestions, grammar assistance, plagiarism checking, and AI-text detection. For Free, Premium, and single-user Pro accounts, Product Improvement and Training is enabled by default, but users can opt out; when disabled, user content is not used for model training, validation, or product improvement. Multi-user accounts bought directly online are also enabled by default, with an administrator opt-out. Enterprise-tier, sales-purchased Pro/Business, and Education accounts have training disabled by default. Grammarly says its external LLM service providers may receive prompts and context to provide generative features but may not train their models on user content. Under the October 29, 2025 Superhuman terms, inputs and outputs are User Content, and users own all right, title, and interest in User Content; the terms also grant Superhuman a broad license for operating, improving, customizing, and developing its services.
Free + paid plans — official pricing page should be verified before publication.
Official sources checked 2026-08-29Open verification questions
- Official pricing, rights, and privacy statements have not been verified.
- Affiliate program status and revenue terms are unknown until checked against official sources.
No official source verification has been performed for this record yet. Do not publish unverified pricing or rights claims.
How to decide
Match each platform to your actual workflow constraints. Run one real workflow in each finalist before paying.
Quick recommendation
Use the trial checklist on each review page and the free scorecard to record time-to-result, corrections needed, and monthly cost at your expected volume before committing to a plan.
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