Shortwave vs Superhuman
The Winner
Too Close to Call
Both Shortwave and Superhuman are excellent choices. Your decision should be based on specific feature needs and use case.
Quick Comparison
| Criteria |  Shortwave |  Superhuman |
|---|---|---|
| Free Tier | No | No |
| Starting Price | Custom pricing | $30/mo Best |
| User Rating | 4.4 | 4.5 |
| Review Count | 1,739 | 1,859 |
| Free Trial | 14 days Best | No |
| Annual Discount | N/A | 17% Best |
| Best For | AI-powered inbox management for Gmail | High-volume email professionals |
Feature Breakdown
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
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)
Shortwave
- Ghostwriter learns your voice
- Free tier available
- Intelligent email bundling
- Tasklet automation platform
- Gmail and Google Workspace only
- Limited review track record
- No built-in calendar
Superhuman
- Auto Drafts write in your voice
- 100+ keyboard shortcuts
- 59% faster email writing
- Intelligent Auto Labels
- Premium pricing
- No unified inbox
- Steep keyboard learning curve
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)
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)
The Verdict
Both Shortwave and Superhuman are excellent choices for their respective strengths. Shortwave is ideal for AI-powered inbox management for Gmail, while Superhuman shines at High-volume email professionals. Your final choice should depend on your specific requirements and budget.