GrapheneOS
LineageOS
Android
e.foundation /e/
postmarketOS
Ubuntu Touch
DivestOS
Privacy-focused operating system for smartphones based on Android and microG

Supermemory
Mem0
Alma by Olivares.AI
Notion
MemoryBase.app
Kiomi Memory
Dray
Cure your AI of amnesia with MemoryPlugin. A simple, powerful plugin that helps your AI remember things.

Which is more popular?
Based on our record, CalyxOS seems to be more popular. It has been mentioned 191 times since March 2021.
Website, pricing, platforms and company facts side by side.
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CalyxOS
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| Website | calyxos.org | memoryplugin.com |
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| Listed in |
In their own words, as submitted to SaaSHub.

No description of CalyxOS yet.
MemoryPlugin is the universal memory layer for AI systems. It enables persistent context across chats and platforms, so AI can recall precise user details and preferences over time. Developers can integrate memory seamlessly via browser extensions, MCP servers, custom plugins, and a robust...
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.
CalyxOS Review: The Private & Secure Android ROM For Everyone!
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using CalyxOS and MemoryPlugin. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.

It ships with Signal for encrypted messaging; Tor browser to access the web without any tracking; a free and trusted VPN from the Calyx Institute; the open-source Aurora Store, a Play Store alternative, and more....
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Recommendations tracked on public social media and blogs since March 2021.

I use pixel 3 with https://calyxos.org/ as a home phone to play music, record videos, pictures etc. Calyxos is still providing extended support for 4a, but microG doesn't work as well compared to sandboxed google play services on... - Source: Hacker News / almost 2 years ago
For example https://androidauthority.com/grapheneos-3287030/ > "Even if you stomach the Pixel-only requirement" I have not and will not stomach that at all, nope! https://grapheneos.org/faq#supported-devices Nope! I wasn't paying... - Source: Hacker News / over 2 years ago
I'm sure you did your research. I'm writing for other readers who are interested. There are a few alternatives, more can be found but this is a selection of the most prominent offerings. /e/OS: https://e.foundation/e-os/ GrapheneOS:... - Source: Hacker News / almost 3 years ago
Tracking MemoryPlugin since Nov 2025.
When comparing CalyxOS and MemoryPlugin, you can also consider the following products.

GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.
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Memory and continual learning for agents
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Operating system for smartphones and tablet computers, based on the Android
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Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.
Compare Android to CalyxOS or MemoryPlugin:

Give your AI a soul. AI assistant with persistent memory — remembers your preferences, facts, and decisions across every conversation. Alma is a persistent memory layer that makes your AI smarter with every conversation.
Compare Alma by Olivares.AI to CalyxOS or MemoryPlugin: