mindlib (Mind Map, Notes) vs Brain3k
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
mindlib (Mind Map, Notes)
Organize and expand your knowledge with an AI-powered mind mapping tool. Create interconnected information networks, engage in AI conversations for insights, and automatically generate mind maps from discussions. Supports web access and data import/export.
- AI-powered mind mapping
- Personalized AI chat
- Automatic mind map generation
- Weblink sharing and Open Graph integration
- Google Knowledge Graph integration
- Offline access and synchronization
- OPML import/export
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Organize your knowledge through mind mapping and create your personal mind library. Instead of carving knowledge into your brain’s neurons by repeating it over and over, why not persist it as a mind map in an information network? Only once and without the risk of losing it. Starting from a central node, mindlib enables you to save, relate, and compare information. Knowledge is displayed in a mind map-like style, where everything is interconnectable—just like your mind. Engage in dynamic conversations with your personal AI to explore, refine, and expand your knowledge. The AI-Chat in mindlib is uniquely tailored to your knowledge base, intelligently searching through your stored insights to provide context-aware answers that are grounded in your own curated information. AI-generated insights can be automatically transformed into structured mind maps, eliminating the need for manual organization and research. Instead of arranging content yourself, simply engage in a natural conversation, and let mindlib handle the structuring. This allows you to effortlessly expand your knowledge while keeping it well-organized and interconnected. To support knowledge organization, mindlib can be a share goal for your weblinks, uses Open Graph to pull information from URLs, and integrates the Google Knowledge Graph to discover relevant entities. A search function, list view, and graphical mind map navigation enable you to quickly access your knowledge and explore new connections. mindlib stores your mind maps locally and synchronizes with a server, ensuring your knowledge is always available—even when offline. The app supports the OPML format for importing and exporting information, allowing easy exchange with other mind mapping applications and creating backups. Use the web application version to access mindlib from your desktop at app.mindlib.de. The free version allows up to 100 pieces of information. Upgrade to a monthly or yearly subscription for unlimited knowledge storage. Once your subscription ends, your existing data remains available and synchronized across all devices. Terms of Use: https://app.mindlib.de/eula/en
Brain3k
This app helps you organize web content and personal notes by simulating how the brain retrieves information. Instead of folders, you use keywords to instantly find saved items, making searching more intuitive and saving time.
- Keyword-based memory retrieval
- Automatic content analysis and screenshots
- Custom tags and notes
- Cross-platform synchronization (iOS, iPadOS, macOS)
- Beautiful, platform-adapted design
- No user tracking or data selling
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# Collect memories instead of bookmarks Every web browser has a sophisticated system to manage bookmarks. You can put them into folders and subfolders, and after that, you will probably never use them again. That's because directories structure is how computers work, but it isn't how your brain works. Our mind has a more efficient way of collecting information. When you need info back, think about it, and that's it - memory is back on the top of your hand. This app simulates biological function, allowing you to retrieve information instantly using words connected with seeking items. That saves your time and makes searching more intuitive. Brain3k does that with bookmarks (more data types to come) called memories. You put them into the app and then type any related words to find them. # Search with text instead of managing When adding new memory to Brain3k, the server analyzes the item's content and prepares a beautiful screenshot. Next time you want to find it, type a text related to it. Internal tags, description, title, summary, and URL are used to find it. The same as your brain works; just think about it. # Own tags and notes Sometimes automatic tags and page metadata aren't enough. What if you are collecting ideas for a specific project? In Brain3k, you can add your tags and notes. Of course, they are used when you are searching for memories. Why is this better than folders, you may ask? You can put a bookmark in one directory at a time, but you can add multiple tags to memory. # iOS, iPadOS and macOS sync Log in using Sign in with Apple or email and password on your iPhone, iPad, or MacBook. All your data are synchronized, and you will see new items on each platform without a single click. Of course, you will need only one subscription, no matter which version you are using. # Beautiful design and platform adaptation Each platform is different. Brain3k looks similar on iOS, iPadOS, and macOS, but it's tailored for each one individually. Additionally, it supports dark mode on each platform and portrait and landscape mode on iOS and iPadOS. # You are not a product No user tracking. No selling users' data. Brain3k is a paid application, so you are a client, not a product. We limited your personal data collection to a needed minimum, and we only use your email for account purposes. And that's it. Every data you upload stays private for you. All stability and crash tracking is made without linking this data to your device or account. # Unlimited test period and simple subscription When you create an account, your account capacity is limited to 100 memories. There is no time limit, and you can use your account as long as you want. If you need more memories, a Pro subscription is for you. $19.99 yearly will increase a memories limit to 5000 memories. # Legal Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. Manage your subscriptions in Account Settings after purchase. Privacy Policy: https://brain3k.com/privacy-policy Terms and Conditions: https://brain3k.com/terms-and-conditions
Screenshots
Verdict
The clearest difference is review sentiment: mindlib (Mind Map, Notes) at 80% against Brain3k's 0%. mindlib (Mind Map, Notes) also leads on iOS requirement (13.0 vs 15.0). Brain3k's advantage is rating (4.8 vs 3.5) and update cadence (weekly vs every 6 weeks). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. mindlib (Mind Map, Notes) sells 3 in-app purchases, starting at $0.99 per month and Brain3k sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.
Brain3k holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews complicate that: 80% of mindlib (Mind Map, Notes)'s written reviews are positive against 0% of Brain3k's, so the app with the better star average is not the one people write more warmly about.
mindlib (Mind Map, Notes) ships an update every 6 weeks, Brain3k weekly. The most recent releases landed on October 18, 2026 and September 30, 2026 respectively.
| Parameter | mindlib (Mind Map, Notes) | Brain3k |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) | 4.8 (4 ratings) — better |
| Positive reviews | 80.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 | 4 |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 23 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Carsten Klaffke | Hydra Softworks |
Customer experience
mindlib (Mind Map, Notes)
Brain3k
In-app purchases
mindlib (Mind Map, Notes)
- Full Version Monthly$0.991 Month
- Full Version Yearly$7.991 Year
- Full version$2.99
Brain3k
- Pro Access$19.991 Year
Questions
Is mindlib (Mind Map, Notes) free?
Is Brain3k free?
Which has better reviews, mindlib (Mind Map, Notes) or Brain3k?
Do mindlib (Mind Map, Notes) or Brain3k have ads?
Which is updated more often, mindlib (Mind Map, Notes) or Brain3k?
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