Grammarly vs Shortwave

Grammarly
4.6
287,078 reviews
Free tier From $30/mo
Full Review Try Free
VS
Shortwave
4.4
1,739 reviews
From Custom pricing
Full Review Try Free
01

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
Full Grammarly Review Try Grammarly Free
02

Quick Comparison

Criteria Grammarly Shortwave
Free Tier Yes Best No
Starting Price $30/mo Best Custom pricing
User Rating 4.6 Best 4.4
Review Count 287,078 Best 1,739
Free Trial 7 days 14 days Best
Annual Discount 60% Best N/A
Best For Fast, polished business writing AI-powered inbox management for Gmail
03

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

Shortwave Key Features

  • Ghostwriter AI learns your personal writing voice from sent emails
  • One-click AI replies that match your tone and style
  • Intelligent email bundling groups related messages automatically
  • AI-powered search across entire email history
  • Tasklet automation platform connects inbox to Slack, Notion, Asana, HubSpot
  • Team features: channels, mentions, typing indicators, presence

Grammarly

Strengths
  • Industry-leading accuracy
  • Generous AI prompt quotas
  • Truly cross-platform
  • Documented ROI
Limitations
  • English-only limitation
  • Can be overly prescriptive
  • Expensive for individuals
Full Grammarly Review →

Shortwave

Strengths
  • Ghostwriter learns your voice
  • Free tier available
  • Intelligent email bundling
  • Tasklet automation platform
Limitations
  • Gmail and Google Workspace only
  • Limited review track record
  • No built-in calendar
Full Shortwave Review →
04

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
Read Full Grammarly Review
05

Shortwave Overview

Shortwave replaces your Gmail client with AI-powered email management. Ghostwriter AI writes replies in your voice, smart bundling organizes your inbox, and Tasklets automate workflows across Slack, Notion, and HubSpot. Starts free with affordable paid upgrades.

Best For:

  • AI-powered inbox management for Gmail
  • Professionals wanting to achieve Inbox Zero faster
  • Teams needing Slack-like collaboration features in email
  • Users who want AI to learn their writing voice for replies
  • Power users managing multiple email accounts
  • Privacy-conscious users (built by ex-Google engineers)
Read Full Shortwave Review
06

The Verdict

4.6/5
Winner Rating

Grammarly is our top pick for most users, thanks to its higher user ratings.

Full Grammarly Review Try Grammarly Free
07

Grammarly vs Shortwave FAQ

Both Grammarly and Shortwave are excellent tools. Grammarly is better for Fast, polished business writing, while Shortwave excels at AI-powered inbox management for Gmail. Your choice depends on your specific needs and budget.
Grammarly pricing: Free tier available. Shortwave pricing: Contact sales. 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 Shortwave covers AI-powered inbox management for Gmail. Check integration options for both tools.
Both offer robust support. Grammarly provides standard support, while Shortwave offers comprehensive support. Enterprise plans typically include dedicated support for both.
Consider switching if Shortwave better fits your current needs. Key factors: AI-powered inbox management for Gmail, pricing alignment, and team workflow compatibility. We recommend trialing Shortwave before making a full switch.
08

Related Comparisons

Grammarly Alternatives Shortwave Alternatives Grammarly Pricing Shortwave Pricing