Harmony AI Email Assistant vs Letty: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Feature lists share 0 overlapping items across the two listings.
Harmony AI Email Assistant is an AI email voice assistant that lets you read, summarize and handle Gmail by voice, hands-free and eyes-free.
AI email writing assistant for Gmail that drafts new messages and replies in several languages, saving time on everyday email composition.
| Attribute | Harmony AI Email Assistant | Letty |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | free |
| Votes | 0 | 0 |
| Category | AI Email Assistant | AI Email Assistant |
| Feature | Harmony AI Email Assistant | Letty |
|---|---|---|
| Enables hands-free and eyes-free email management | ||
| Increases productivity during otherwise unproductive times (driving | ||
| exercising | ||
| chores | ||
| walking) | ||
| Supports core email actions via intuitive voice commands | ||
| Strong privacy commitment (no email storage | ||
| encrypted | ||
| no data sales | ||
| audited) | ||
| Provides smart summaries and thread detection for easy understanding | ||
| Currently only supports Gmail (Outlook and other providers are coming later) | ||
| Saves time on email writing and replies | ||
| Improves email productivity | ||
| Offers personalized and professional email composition | ||
| Supports multiple languages | ||
| Can be trained with user data for better accuracy | ||
| Currently optimized for Gmail only |