TextCortex Review (2026): Pricing, Features & Honest Verdict

TLDR

TextCortex is a customizable AI writing assistant (ZenoChat) that works inside 30,000+ apps and answers using your own uploaded knowledge bases and personas. Best for: teams who want on-brand AI grounded in company docs. Price: From $6.99/mo (free plan: yes). Rating: 7.2/10.

What is TextCortex?

TextCortex is an AI writing and productivity platform built around ZenoChat, a conversational assistant that lives in a browser extension and follows you across email, Google Docs, LinkedIn, Notion, and more than 30,000 other apps. Instead of forcing you into a separate tab, it sits wherever you already write, so drafting, rewriting, summarizing, and fixing grammar happen in place. What actually sets it apart from a generic chatbot is the RAG-powered knowledge base: you upload PDFs, websites, SOPs, and internal docs, and ZenoChat answers grounded in that material rather than guessing.

The company was founded in 2021 in Berlin by Ceyhun Derinbogaz and Dominik Lambersy, and raised a roughly EUR 1.1M seed round in 2022 led by b2venture with Speedinvest and Entrepreneur First participating. It’s EU-hosted and GDPR-compliant, which is a big reason it’s picked up 2M+ users and enterprise customers like Siemens, MAHLE, and Lamborghini. TextCortex matters because it targets the gap between a raw ChatGPT window and a controllable, on-brand assistant that knows your business.

What Are TextCortex’s Key Features?

ZenoChat everywhere

The core of TextCortex is ZenoChat, a browser-extension assistant that works inside 30,000+ web apps. You can highlight text to rewrite or summarize, generate drafts from a prompt, or hold a full conversation without leaving your inbox or document. It supports 25+ languages, so translation and multilingual drafting are built in rather than bolted on.

Knowledge bases (RAG)

You can upload documents, connect data sources, and point ZenoChat at up to 50MB of storage on the free plan (scaling to 100GB on the top tier). Responses are then grounded in your material, which is the difference between a generic answer and one that quotes your actual product spec or policy. This is the feature enterprise teams care about most.

Custom personas

TextCortex lets you build AI personas tuned to a role or voice, such as a sales assistant, support agent, or a persona that mirrors your own writing style. The free plan caps you at 3 personas; paid tiers unlock unlimited personas plus brand personas for teams.

Web search and image generation

ZenoChat can pull live information via web search so answers aren’t frozen at a training cutoff, and paid plans add AI image generation alongside the text templates. Combined with a library of writing templates, it covers most day-to-day content tasks in one place.

How Much Does TextCortex Cost?

TextCortex starts free with 20 creations per day, 3 personas, and 50MB of storage, then paid Premium tiers begin at $6.99/mo (about $5.59/mo billed annually) for 150 creations and 100MB storage. The ladder climbs through $18.99, $29.99, $37.99, and $69.99/mo, up to $119.99/mo for unlimited creations and 100GB of storage; Enterprise is custom-priced with brand personas, centralized billing, and knowledge sharing. That’s noticeably cheaper at the entry level than Jasper, whose Creator plan runs around $39/mo, and it undercuts a lot of the RAG-focused competition on the low end.

Who Is TextCortex Best For?

TextCortex is aimed at marketers, operators, support teams, and founders who write across many tools all day and want an assistant that already knows their company’s material.

Use TextCortex if you want on-brand AI grounded in your own docs, you value EU hosting and GDPR compliance, or you’re tired of copy-pasting between a chatbot tab and your real work. Skip TextCortex if you only need occasional quick answers (the free ChatGPT tier is fine), or if you’re a developer wanting deep API/agent orchestration rather than a writing-first extension.

Best TextCortex Alternatives

TextCortex sits between all-purpose chatbots and dedicated marketing copy tools, so the best alternative depends on whether you prioritize knowledge grounding, long-form marketing content, or raw model flexibility.

Jasper

Jasper is the heavyweight for marketing teams producing campaign copy and brand content at scale, with strong brand-voice controls and workflow features. It’s more polished for pure marketing output but pricier, starting around $39/mo versus TextCortex’s $6.99/mo entry point.

ChatGPT

ChatGPT is the default general-purpose assistant with a strong free tier and $20/mo Plus. It’s more capable as a raw reasoning model, but it doesn’t natively embed in 30,000 apps or ground answers in your uploaded knowledge base the way TextCortex’s personas and RAG do out of the box.

Writesonic

Writesonic focuses on SEO-driven content and article generation with its own chatbot and browser tools, starting free with paid plans from roughly $16/mo. It leans more toward publishing workflows, while TextCortex leans toward in-app assistance and internal-knowledge answers.

Final Verdict: Is TextCortex Worth It?

TextCortex is a genuinely useful tool for anyone who writes across a lot of apps and wants AI that reflects their own knowledge and voice rather than a generic model. The knowledge-base grounding, the 30,000-app reach, custom personas, and EU/GDPR hosting are real differentiators, and the $6.99/mo starting price makes it easy to justify over a raw chatbot subscription.

The catch is the creation-based pricing: heavy users can burn through allowances fast, and you may need to climb several tiers before creations feel truly unlimited, which muddies the value math. If you want an on-brand, always-available assistant grounded in your documents, TextCortex is worth a trial on the free plan. If you just need occasional AI answers, save your money and use a free general chatbot.