Mentes Chat vs fork ai
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Mentes Chat
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Mentes Chat is the AI companion for your second brain. Ask questions about your saved bookmarks and links, and get answers grounded in your personal knowledge. YOUR SECOND BRAIN, NOW CONVERSATIONAL Save web pages and bookmarks with Mentes (mentes.ai). Mentes Chat lets you have conversations with all that knowledge. Instead of searching through folders, just ask. "What did that article say about productivity?" "Summarize the articles I saved last week." "Find the link about React performance I bookmarked." ASK QUESTIONS, GET ANSWERS FROM YOUR CONTENT The AI reads through your saved content to give you accurate, sourced answers. Responses are grounded in your actual saved content ā not made up. WEB SEARCH WHEN YOU NEED IT Enable web search to combine your personal knowledge with real-time information from the internet. Get the best of both worlds. DESIGNED FOR YOU - Fast and responsive - Light and dark themes - Keyboard shortcuts - Automatic updates - Secure authentication Mentes Chat requires a Mentes account. Save your bookmarks at mentes.ai, then chat with them here.
fork ai
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Upload your lecture PDF and fork ai turns it into a mind map of notes. Then dig into any part of it: open a branch on the map, or tap a sentence and Ask AI about exactly that. Every question becomes a branch on your map, so you can find your place again. HOW IT WORKS ⢠Upload a lecture PDF (lecture slides saved as PDF are fine), a text file, a Markdown file or an image ⢠fork ai builds a mind map of notes from it ⢠Open any branch from the map to read it ⢠Tap a sentence, or highlight a passage, and tap Ask AI to ask about exactly that ⢠Each answer becomes a new branch on the map ⢠Mix several branches into one new answer with the Mixer KEEP AND SHARE YOUR WORK ⢠Highlight in colors and pin callouts ⢠Export a session to Notion as a structured page ⢠Share a session with a link. Anyone can read it without an account ⢠Choose the AI model for each branch ⢠Turn on web search to get answers with cited sources ⢠Get a notification when a long research run finishes BEFORE YOU UPLOAD ⢠fork ai reads up to 50 pages, or about 40,000 characters, of a file ⢠Scanned PDFs with no text layer are read by OCR: the first 10 pages only, and English only ⢠If a file was only partly read, the app tells you, so you can split it and upload the rest ⢠You need an account to upload. Sign-up is free CREDIT New accounts get a one-time $5 starting credit. AI answers use up credit. When it runs out, you can buy more inside the app.
Screenshots
Verdict
The clearest difference is in-app purchases: Mentes Chat at none against fork ai's 2. Mentes Chat also leads on update cadence (every 2 weeks vs every 2 months). fork ai's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. fork ai sells 2 one-off in-app purchases. Mentes Chat asks for nothing beyond the download.
Mentes Chat ships an update every 2 weeks, fork ai every 2 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.
| Parameter | Mentes Chat | fork ai |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks ā better | Every 2 months |
| Ads | No | No |
| In-app purchases | No ā better | Yes |
| Devices | iPhone | iPhone, iPad, iPod ā better |
| Requires iOS | 17.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 15 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Sriram Balasubramanian | Gokul Madathupalyam Chinnappan |
In-app purchases
Mentes Chat
No in-app purchases
fork ai
- $5 Credit$6.99
- $10 Credit$13.99









