
Logseq
Obsidian
Zim Wiki
Nuclino
Trilium Notes
TiddlyWiki
Roam Research
Personal knowledge management and sharing on VSCode & GitHub

PrimeDocu
DocuSign
Doc Scanner
Dropbox Sign
Docs Online Viewer
Pidoca
RightSignature
Upload PDFs, DOCX, text files or images to get instant AI summaries, key points and optional Q&A.

Which is more popular?
Based on our record, Foam seems to be more popular. It has been mentioned 49 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | foambubble.github.io | readdocs.co.uk |
| Pricing | ||
| Company | Startup from the United States | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Foam yet.
ReadDocs is an AI-powered document summarizer that helps you understand files faster. Upload a document and get: - A clear summary - Key points - Optional Q&A (ask questions and get answers from the document) Supported file types PDF DOCX (Word) TXT Images / scanned documents (OCR supported)...
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.
These panels DESTROYED my STUDIO....REVERB? - ArrowZoom Foam Review
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Foam and ReadDocs.
ReadDocs's answer:
Answers are generated through AI
ReadDocs's answer:
professionals are our biggest customers
ReadDocs's answer:
It supports OCR for images/scanned documents and provides optional Q&A to extract answers quickly.
Share your experience with using Foam and ReadDocs. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Choose a local Markdown tool like Obsidian, Logseq, Foam, or Tolaria to store all your knowledge as plain .md files you own and control. - Source: dev.to / 6 months ago
I've been using foam instead of obsidian for my personal knowledge base. It works rather well. And it's completely free and ultimately just markdown. While I might wish it was djot, I don't wish hard enough to make that so myself... - Source: Hacker News / about 2 years ago
I gave up on Obsidian and just use Foam (https://foambubble.github.io/foam/) and/or vimwiki. I just can’t get into overwrought, arbitrarily designed organization schemes or proprietary apps (Foam-managed content is just plain Markdown,... - Source: Hacker News / over 2 years ago
Tracking ReadDocs since Jan 2026.
When comparing Foam and ReadDocs, you can also consider the following products.

Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.
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Scan, sign, summarise, convert and organise PDFs with AI — with end-to-end encryption so only you can read your documents. Free plan available.
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A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
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Try DocuSign's interactive signing demo now! Send yourself an electronic document to digitally sign using our e-signature service.
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Zim is a graphical text editor used to maintain a collection of wiki pages. Each page can contain links to other pages, simple formatting and images.
Compare Zim Wiki to Foam or ReadDocs:
