
PDF.ai
ChatGPT
ChatDOC
Humata AI
NotebookLM
AskYourPDF
ChatDox
Chat with any PDF! Join millions of students, researchers and professionals to instantly answer questions and understand research with AI

Hello Maggie.com.au
Palantir Foundry
Chat Whisperer AI
Hello Gubby
Palantir
Midjourney
NoteGPT.io
One live model of the entire company, with AI agents that act on it. A European alternative to Palantir Foundry.

Which is more popular?
Based on our record, ChatPDF seems to be more popular. It has been mentioned 17 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | chatpdf.com | hellomatik.com |
| Pricing | — | |
| Company | Startup from Germany · 1 - 9 employees · 2023 | Startup from Spain · 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


For Researchers Explore scientific papers, academic articles, and books to get the information you need for your research. For Students Study for exams, get help with homework, and answer multiple choice questions faster than your classmates. For Professionals Navigate legal contracts, financial...
HM-2 by Hellomatik gives a company one live model of its entire operation, built from the business systems, databases and email it already uses. Each department works in its own application on that model, and AI agents monitor operations, reconcile figures across systems and carry out recurring...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
ChatPDF | MindBlowing 🤯 AI Tool To Chat With Any PDF | Powered By ChatGPT API
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing ChatPDF and Hellomatik.
Hellomatik's answer:
HM-2 connects the software a company already has instead of replacing it. The ERP, the CRM and the rest stay in place, and each department gets its own application on top of them, with AI agents that reconcile figures across systems, flag variances and explain what caused them, and handle routine tasks, automatically or with approval depending on the task. All data, including the AI models, is hosted and processed in Europe.
Hellomatik's answer:
Companies whose operations are spread across several business systems that do not agree with one another, from production to administration. HM-2 is not built for a single sector.
Hellomatik's answer:
Hellomatik is a Spanish software company founded to bring a company's systems, data and procedures together in one place, so that software can act on the whole operation rather than on one part of it. HM-2, its platform, is developed in Spain.
Hellomatik's answer:
HM-2 is developed by Hellomatik in Spain and runs on infrastructure hosted in Germany. All data, including the AI models, is hosted and processed in Europe.
Hellomatik's answer:
Hellomatik's platform, HM-2, builds one live model of the whole company from the business systems, databases and email it already runs, and every application and AI agent works from that model. Each figure, rule and procedure has a single definition, so the agents work from the same data the company uses to make its decisions.
Share your experience with using ChatPDF and Hellomatik. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


I think my app still can't beat chatpdf.com. :(. Source: over 3 years ago
Quoting directly from the FAQ popup on chatpdf.com:. Source: over 3 years ago
Try using chatpdf.com I don't really use documents that much. Source: over 3 years ago
Tracking Hellomatik since Oct 2025.
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