4k VS. 400k, although ChatPDF is more powerful than PDF ai, we failed

What is ChatPDF?

ChatPDF is a document analysis tool that can help you analyze 39+ types of document(including 27+ types of local document, 15+ types of web post, 17+ AI add-ons), like PDF,Office Word, Excel, PPT, Form, Image, Audio, Video; and extract useful information from them.
ChatPDF Link:
https://chrome.google.com/webstore/detail/chatpdf➶-chat-with-39 -ty/inmogmmafcadkabkapjmpikbciiplajf?hl=en&authuser=0

ChatPDF Website:
https://askdocs.azurewebsites.net/

ChatPDF Video:
https://www.youtube.com/watch?v=C2wIoRpEdJM

✅ ChatPDF supports chat with 39+ types of documents.
✅ ChatPDF built-in 11+ Powerful AI, including GPT-4, ChatGPT, Microsoft Azure AI.
✅ ChatPDF built-in 17+ AI Add-ons.
✅ ChatPDF supports 12+ Chat Modes.

✅ Chat Multiple Documents With AI
✅ Chat Single Document With AI
✅ Chat Part Of Document With AI

What is PDF.ai?

PDF.ai is a PDF tool, it's a Chrome Browser Extension. Here is its blurb:
The ultimate ChatPDF extension that allows you to chat with any PDF using AI: ask questions, get summaries, find anything you need!
Introducing the ultimate ChatPDF Chrome extension that allows you to chat with any PDF! 🥳
Engage effortlessly with PDFs from external .pdf files or your local .pdf files.
We also have native integrations with Google Drive and Dropbox.
PDF.ai is one of the competitors of ChatPDF.

How did we build it(ChatPDF)?

Since March this year, we have built more than 35 versions of ChatPDF, currently, the latest version of ChatPDF is V4.4.5.
We learned some good products and constructed some useful features for working with documents.
We have integrated more than 11 powerful AIs into ChatPDF, including GPT-4, ChatGPT, and Microsoft Azure AI. It is also very powerful despite its complex code!
We think it's worth the effort! We are proud to say that it is one of the most advanced documentation tools in the world.

Why did we fail?

Although we are proud to have built such a ChatPDF, we regret that it lags behind its competitors! PDF.ai has 400k+ users while ChatPDF has only 4k users. This is a huge gap and a sign that we are failing miserably!
We admit that every version of ChatPDF has more or less bugs, however, it is hard to imagine that these bugs would cause such a big gap!
Is such a huge gap caused by the difference in the intensity of advertising and promotion? We don't know, we really don't have a lot of resources to promote ChatPDF.
We don't know what caused such a huge gap. We want to know why.
However, we lack a fresh perspective on ChatPDF.
We hope you can give us some ideas.