Shortwave wins on AI features and price. Superhuman wins on keyboard-shortcut speed. Different pitches for the same Gmail-only audience.
The 30-second comparison
| Shortwave | Superhuman | |
|---|---|---|
| Pricing | $9-$14/seat | $30/seat |
| Best for | AI-driven inbox | Keyboard speed |
| Platform | Gmail only | Gmail + Outlook |
| AI features | Best in class | Lighter |
| Native apps | Yes | Yes |
When Shortwave wins
AI features. Natural-language search ("emails from Sarah about pricing last month"), AI summary, AI-drafted replies. Best email AI in 2026.
Price. $9/mo Plus vs $30/mo Superhuman.
Built for AI from day one. Shortwave was designed around LLM features; Superhuman bolted them on.
When Superhuman wins
Keyboard speed. Best keyboard shortcuts in any email app. If you type fast, Superhuman lets you process email materially faster.
Outlook support. Superhuman supports Outlook; Shortwave is Gmail-only.
Mature product. Longer track record, refined polish.
Brand cachet. "I use Superhuman" still signals "I care about my email."
Three patterns we see
Pattern 1: Solo founder. Shortwave wins on cost + AI for solo users.
Pattern 2: Executive at large company. Superhuman if Outlook is mandatory; Shortwave if Gmail-only.
Pattern 3: Power emailer (1000+ emails/week). Either works; pick by personal preference on speed-vs-AI trade-off.
The verdict
- Gmail user wanting best AI → Shortwave
- Outlook user → Superhuman (only option)
- Cost-sensitive → Shortwave
- Speed-obsessed keyboard user → Superhuman
For broader productivity AI see Best AI personal assistant and Best AI executive assistant.