Lex
8.3#19 in ai writing toolsFrom $179.88 a yearFree planiOSWebAPI
VisitLex vs TextCortex
TextCortex
9.0#2 in ai writing toolsFrom $29.99 a monthFree planAndroidiOSWebAPI
VisitWhat both publish
| Fact | Lex | TextCortex |
|---|---|---|
| API | Lex publishes a public API documentation site at docs.lex.page. | The public API uses https://api.textcortex.com/v1, bearer authentication and supports model listing, chat completions, responses, image generation, web search and knowledge-base queries. |
| Brand voice controls | Yes | Yes |
| Company facts | LinkedIn lists Lex as privately held, founded in 2023, headquartered in San Francisco, with 2–10 employees. | LinkedIn lists TextCortex AI as privately held, founded in 2021, headquartered in Berlin and employing 11–50 people. |
| Company legal name | Lex’s Terms identify the provider as Lex, Inc. | The imprint identifies the maker as Text Cortex AI UG (haftungsbeschränkt), registered in Berlin under HRB 233350 B. |
| Free plan | Yes | Yes |
| Integrations | The documented native integration is with Kit, formerly ConvertKit, for analyzing newsletters and sending drafts back to Kit. | The integrations directory advertises use on more than 30,000 platforms and connections to over 5,000 additional apps through Zapier or Make. |
Lex plans
- FreeFree
- Lex Pro monthly$24.99 a month
- Lex Pro annual$179.88 a year
- Lex Pro—
TextCortex plans
- Premium$29.99 a month
- EnterprisePriced on request
- FreeFree
Pick Lex if…
Lex may suit individuals and teams working on drafts that need revision, from academic papers and fiction to customer-facing copy and important emails. Its shared prompts and context tags may help teams give AI guidance about their voice and goals.
Pick TextCortex if…
You want what its maker publishes above — check its page for the details.