Shortwave vs Spark Mail
The Winner
Spark Mail
Has a slight advantage based on user ratings and overall value. Both tools are excellent - Shortwave may still be better for specific use cases.
Quick Comparison
| Criteria |  Shortwave |  Spark Mail |
|---|---|---|
| Free Tier | No | Yes Best |
| Starting Price | Custom pricing | $8.25/mo Best |
| User Rating | 4.4 Best | 4.2 |
| Review Count | 1,739 | 169,454 Best |
| Free Trial | 14 days Best | 7 days |
| Annual Discount | N/A | 17% Best |
| Best For | AI-powered inbox management for Gmail | Cross-platform email for freelancers |
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
Spark Mail Key Features
- AI email writer
- Smart Inbox prioritization
- Email scheduling
- Shared inboxes for teams
- Email templates
- Cross-platform (iOS, Mac, Android, Windows)
- Gatekeeper spam blocking
- Calendar integration
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
Spark Mail
- Generous free tier
- True cross-platform support
- Smart Inbox categorization
- Affordable team features
- AI quality behind premium competitors
- Limited third-party integrations
- Fewer keyboard shortcuts
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)
Spark Mail Overview
Spark Mail offers smart inbox sorting, AI email composition, and team collaboration features with affordable premium plans and a solid free tier. Best for freelancers and small teams who want cross-platform AI email without enterprise pricing.
Best For:
- Cross-platform email for freelancers
- Small teams needing shared inboxes and drafts
- Professionals wanting AI email writing on a budget
- Apple ecosystem users who also need Windows/Android
- Solopreneurs managing multiple email accounts
The Verdict
Spark Mail has a slight edge based on user ratings and overall value. Both tools are excellent - Shortwave may still be better for AI-powered inbox management for Gmail.