Core
$0
Buyer benefits: Local AI memory (the brain) · Offline use · English and Arabic support · Connecting multiple AI tools
Callosium
A local-first shared memory for every AI using your own files.
Callosium unifies every AI assistant by providing a shared memory in plain files stored locally on the user's computer, allowing AIs like ChatGPT and Claude to access a common knowledge base. It ensures privacy by never sending data outside the device, supports English and Arabic equally, and is free to use forever with optional cloud sync paid tiers.
- Pricing
- Freemium
- Category
- AI & Machine Learning
- Community Upvotes
- Published
- Aug 4, 2026
Linxalium review
Reviewed Aug 4, 2026Independent editorial assessment
Callosium is best suited for individual users and developers who want unified AI memory across tools while retaining ownership of their data. Its strongest verified quality is local-first privacy and control over personal knowledge in a clear, working product workflow. The most material limitation is that sync and multi-device use are in early access, and no formal company structure is evident beyond individual ownership.
Screenshots
Assessment overview
- Maker identity
- Partially verified
- Pricing
- Confirmed
- Privacy policy
- Confirmed
- SEO foundations
- Confirmed
- Product workflow
- Confirmed
Pricing confirmed · checked Aug 4, 2026
Callosium offers a free forever core plan for local AI memory use and a paid $5 per month plan providing cloud-based sync across devices.
Founding Sync Plan
$5/mo
month
Buyer benefits: Sync your brain across devices · Reachable by phone and cloud AIs · Sync via your own cloud (Drive, GitHub, OneDrive)
Limits: Sync feature not yet released; early access only
Important caveat: The paid plan (sync) is in early access and not yet released; prices shown are introductory and may change on launch.
Vendor pricing may have changed. Check official pricing.
Callosium.com performance
| PageSpeed | Performance | FCP | LCP | CLS | TBT |
|---|---|---|---|---|---|
| Mobile | 80 | 1.05 s | 5.27 s | 0 | 12 ms |
| Desktop | 63 | 478 ms | 612 ms | 0.046 | 1.89 s |
Lighthouse lab test · Mobile · Measured Aug 4, 2026, 13:27 UTC
Lighthouse lab test · Desktop · Measured Aug 4, 2026, 13:28 UTC
Only the measurements returned by Lighthouse are shown.
Full assessment · 12 checks
Trust · 3 checks
- Maker identity
- Partially verified Tested
- Terms of service
- Confirmed Tested
- HTTPS & security
- Confirmed Tested
The builder is identified as Abdo, an individual named repeatedly, but no formal company registration evidence is shown on scanned pages.
Clear and comprehensive terms of service are available and readable at a dedicated URL.
The website uses HTTPS, with credible security and privacy practices explained in policy and terms pages.
Product experience · 5 checks
- Product workflow
- Confirmed Tested
- Language support
- Confirmed Tested
- Interface quality
- Confirmed Tested
- Image accessibility
- Partially verified Tested
- Documentation & support
- Confirmed Tested
The Callosium website and product workflow enable a user to install and run the AI memory locally and connect it to AI tools with documented, working instructions.
English and Arabic localization is detected with alternate languages and switcher languages supported consistently across the site.
The website navigation is clear and consistent with readable fonts, structured layout, and is responsive across devices.
Some images have alt text, but 2 images on main pages are missing descriptive alt attributes.
Documentation and support contact are readily available with FAQs, guides, GitHub source, and accessible email support.
Privacy · 3 checks
- Privacy policy
- Confirmed Tested
- Cookie notice
- Not found Tested
- Personal data use
- Confirmed Tested
A detailed, accessible privacy policy is provided on a dedicated page outlining data collection and usage.
No cookie notice was observed on any scanned page despite use of analytics cookies.
The privacy policy explicitly states personal data like name, email, and profile picture is collected for accounts and waitlist.
Discoverability · 1 check
- SEO foundations
- Confirmed Tested
Titles, meta descriptions, headings, canonical URL, and internal linking are well-structured and appropriate for SEO and navigation.
Review notes
Product experience
The onboarding and product workflow are clearly described with step-by-step instructions for installation and AI connection. Navigation menus and internal links facilitate exploration. The product offers immediate use with downloadable clients and dashboard interface, leading to a likely rapid first successful use.
Page quality & accessibility
The website presents consistent, clean layouts with clear headings and readable typography. Visual styling is uniform and professional, though a few images lack alt text reducing accessibility. Content is well structured with rich internal linking and minimal formatting issues.
SEO & discoverability
Page titles and meta descriptions are descriptive and optimized. Headings (h1, h2) are used logically to structure content. The canonical URL is correctly set. Internal links are numerous (22+) enhancing crawlability. Robots tags are absent, implying standard indexing. Overall search readiness is strong.
Privacy, terms & cookies
A detailed privacy policy discloses collection limited to account and waitlist info, excluding personal notes. No cookie notice is evident though cookies for analytics are explained. Terms further affirm data ownership and provide contact for privacy requests. Personal data collection scope and cookie usage are transparent.
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