Haye AI vs WhatLetter: side-by-side comparison of pricing, ratings, and features on SoftwareVital (2026).
Pricing models differ: Haye AI is free, WhatLetter is freemium. Feature lists share 0 overlapping items across the two listings.
Haye is a macOS AI assistant for reading, translating, and writing text across your Mac apps, with web search and PDF chat.
WhatLetter is an AI document assistant and document translation tool that simplifies paperwork in multiple languages.
| Attribute | Haye AI | WhatLetter |
|---|---|---|
| Rating | — | — |
| Reviews | — | — |
| Pricing | free | freemium · $1.99 |
| Votes | 0 | 0 |
| Category | AI Assistant | AI Chatbot |
| Feature | Haye AI | WhatLetter |
|---|---|---|
| Haye is a system-level text intelligence assistant designed for macOS | ||
| It streamlines reading | ||
| translation | ||
| and writing processes | ||
| Haye also offers web search capabilities | ||
| PDF interaction | ||
| and customizable chat styles | ||
| AI document assistant for translating and simplifying paperwork in multiple languages |