Duet Mail vs Spark Mail: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: Duet Mail is free, Spark Mail is paid. Feature lists share 0 overlapping items across the two listings.
Duet Mail is an AI email assistant that summarizes long threads, suggests smart replies, and helps prioritize Gmail messages.
Spark Mail is an email app for desktop, Android, and iOS with AI email writing, summaries, and inbox sorting.
| Attribute | Duet Mail | Spark Mail |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | paid · $7.99 |
| Votes | 0 | 0 |
| Category | AI Copilot | AI Email Assistant |
| Feature | Duet Mail | Spark Mail |
|---|---|---|
| Saves time on email management | ||
| Improves email communication | ||
| Helps prioritize important emails | ||
| Provides instant summaries of long threads | ||
| Offers smart reply suggestions | ||
| Learns your tone and writing style | ||
| Spark +AI (Compose +AI | ||
| +AI Summary | ||
| +AI Templates and more) | ||
| Home Screen for Desktop | ||
| Priority Email | ||
| Group by Sender | ||
| Mute Threads (Android / iOS) | ||
| Large Attachments (Android / iOS) |