TextCortex vs AI Reply Writer: an AI workspace or an AI reply button?
TextCortex vs AI Reply Writer: an AI assistant with a writing toolbar and templates, versus a reply button in Gmail, WhatsApp Web, LinkedIn and more.
TextCortex is an AI assistant for writing and knowledge work: a chat assistant, a toolbar that rewrites, expands, summarises and translates selected text, and templates for common content. AI Reply Writer is focused on replies, with a button in the reply box on 23 sites that drafts the answer from the conversation. Choose TextCortex for broad writing and content tasks; choose AI Reply Writer if answering messages is what takes your time.
At a glance
| TextCortex | AI Reply Writer | |
|---|---|---|
| What it is | An AI writing and knowledge assistant with a chat and a text toolbar | An AI reply writer: a ✦ AI Reply button inside the reply box |
| Where it works | Its web app, and text boxes on the web through the extension | 23 sites, including Gmail, Outlook, LinkedIn, WhatsApp Web, Instagram, Facebook, Slack and Teams |
| Reads the conversation | Works on text you select or describe | Yes — the thread you have open, plus photos and PDFs in Gmail, Outlook and WhatsApp Web |
| Review replies | Not a focus of the product | Yes — Google Business Profile and Trustpilot, reading the star rating |
| Free plan | Yes, with usage limits | 20 replies a month |
| Paid plans | Paid and business plans — see their pricing page | Starter $7, Elite $14, Ultra $29 a month |
| Browsers and phone | Browser extension and web app | Chrome, Edge, Brave, Opera, Vivaldi and Firefox; a web app on phones |
| Sends anything for you? | No — you write and send | Never — it fills the box, you press Send |
What TextCortex is
TextCortex offers an AI assistant (called Zeno) that writes from instructions, plus a toolbar that appears when you select text, with actions such as rewrite, expand, summarise, change tone and translate. It includes templates for emails and other content, and positions itself as an AI workspace for teams and their knowledge.
What AI Reply Writer is
AI Reply Writer does not try to be a workspace. It adds the ✦ AI Reply button to the reply box in each supported app, reads the conversation in front of you, and writes the reply there.
- 23 sites, each with its own reading of the page: email threads, group chats, comment threads, reviews.
- Photos and PDFs read in Gmail, Outlook and WhatsApp Web.
- Business facts you save once — prices, hours, policies — quoted in replies instead of invented.
The main differences
Selecting text vs answering a conversation
A text toolbar improves what you have written or selected. A reply button answers what someone else wrote. Both save time; they save it in different places.
Breadth of tasks vs depth in each app
TextCortex covers more kinds of writing. AI Reply Writer covers more apps for one kind of writing, with the per-app details — who you are replying to in a group, which post a comment belongs to — handled for you.
Pricing
TextCortex has a free plan and paid plans; its current prices are on its website.
AI Reply Writer has a free plan with 20 replies a month, no card needed. Paid plans are Starter ($7 a month), Elite ($14) and Ultra ($29); higher plans unlock more advanced AI models and larger allowances, and teams can buy the same plans per member. See pricing.
Which should you choose?
- Choose TextCortex for an AI assistant across many writing and knowledge tasks, with templates and a text toolbar.
- Choose AI Reply Writer if your day is emails, chats, comments and reviews, and you want each reply drafted in place.
About this comparison: it is based on each product's public information as of October 2026, and both products change often — check the other product's own website for its current features and prices before you decide. Product names are trademarks of their owners; AI Reply Writer is not affiliated with them.
Frequently asked questions
What is the difference between TextCortex and AI Reply Writer?
TextCortex is a broad AI writing assistant with a chat, a text toolbar and templates. AI Reply Writer focuses on replies, drafting them from the conversation inside each app's reply box.
Is there a TextCortex alternative for email and chat replies?
AI Reply Writer works in Gmail, Outlook, LinkedIn, WhatsApp Web, Instagram, Facebook, Slack, Teams and more, with a free plan.
Does AI Reply Writer have templates?
It does not need them: it writes each reply from the conversation, and you can add a short instruction such as "decline politely" to steer it.
Can teams use AI Reply Writer?
Yes. Team plans let several people share one subscription, billed per member.
