According to AlphaMoat, as of 2026-09, the Chrome extension replyai.app has 445 users (+3% MoM), rated 1 (1 reviews) — ranked #2,365 of 9,324 AI browser extensions, and #523 of 1,839 in Office & Collaboration.
What is replyai.app
AI assisted email replies for gmail Helps gmail users write email replies extremely fast using AI.
How it works: When you compose a reply to an email 4 buttons ("Agree", "Decline", "Specify", "Clear") are added next to the "Send" button that you can use as shown in the screenshot. "Clear" only cleans the response, whereas the other 3 are used as inputs to the AI. When you click "Agree" we feed the AI with the contents of the email and tell it to write a response that agrees to it. When you click "Decline" we feed the AI with the contents of the email and tell it to write a response that declines to it. For "Specify" you need to write a text in the response field of how you want the AI to reply. e.g. "schedule call tomorrow at 17:00", or "decline in a funny way". Then we feed the AI with the contents of the email and how you specified the answer to be and AI writes a response.
Extension profile
User Growth Trend
Popular in Office & Collaboration
Easy-to-use PDF tools to view, edit, convert, fill, e-sign PDF files, and more in your browser.
+ Compare
Handwritten notes, course reading, creased scans, TED/Coursera lectures: layout kept, bilingual subtitles. Web instant, auto match.
+ Compare
Translate while you read and write with DeepL Translate, the world’s most accurate translator.
+ Compare
Free Translate Website, Translate PDF & Epub eBook, Translate Video Subtitles in Bilingual
+ Compare
Get instant access to dozens of PDF tools directly in your browser – no downloads, no switching tabs.
+ Compare
Data month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.