Grammarly vs Lex
A side-by-side comparison of Grammarly and Lex, two Writing tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
Grammarly
WritingAI writing assistant for grammar, tone, clarity, and generative drafting.
View GrammarlyAt a glance
| Attribute | Grammarly | Lex |
|---|---|---|
| Category | Writing | Writing |
| Pricing | FREEMIUM | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms (differs) | Web, Browser extension, Windows, macOS, iOS, Android | Web |
| Model support | Multi-model | Multi-model |
| Vendor (differs) | Grammarly | Lex |
| Capabilities (differs) |
|
|
The honest brief
Grammarly
Runs system-wide across browsers, desktop, and mobile keyboards, so corrections follow you into any app.
- Works in 1M+ apps and sites
- Real-time grammar/clarity/tone checks
- Browser, desktop, and mobile keyboard
- Plagiarism + AI-text detection on paid tiers
- Monthly AI prompt caps per tier
- Over-corrects style at times
- Weak at long-form generation
- Passive assistant, can't take actions
Lex
Frontier models inside a focused Google-Docs-style writing surface — pick premium models in the doc, not a sidebar.
- Clean, distraction-free doc editor
- Premium model choice (Claude/GPT)
- Real-time collaboration + versions
- AI feedback and rewriting inline
- Web-only
- Premium models behind Pro tier
- Narrow long-form focus
When to pick which
Both cover Editing / grammar and Long-form writing.
Pick Grammarly if you need Translation.
- Translation (secondary capability)
They also differ on:
- Platforms
- Web, Browser extension, Windows, macOS, iOS, Android · Web