
CalyxOS
LineageOS
Android
Ubuntu Touch
CopperheadOS
postmarketOS
e.foundation /e/
GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

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, GrapheneOS seems to be more popular. It has been mentioned 402 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | grapheneos.org | memoryplugin.com |
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In their own words, as submitted to SaaSHub.


No description of GrapheneOS 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...
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GrapheneOS Review: Your BEST Secure & Private Mobile OS!
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GrapheneOS is a modern and sleek mobile operating system with a strong focus on privacy and robust security features. Developed as an open-source project, it builds upon the foundations of the Android Open Source...
If security and privacy are your main reasons behind your search for an Android alternative, GrapheneOS fits the bill perfectly. It’s a security-hardened operating system, built with top-notch privacy protection in...
GrapheneOS in an open source privacy-focused mobile operating system. It is focused on the research and development of privacy and security technology.
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Recommendations tracked on public social media and blogs since March 2021.


But you can install other OSes such as Graphene on Android phones, I dont think you can do that on iPhones can you? https://grapheneos.org/. - Source: Hacker News / about 1 month ago
You've got the ideal hardware to move to GrapheneOS https://grapheneos.org/. - Source: Hacker News / about 2 months ago
Zero Google services are shippsx by default, but you can install Play Store and Services in a sandbox and it has minimal privacy problems, depending on the permissions you give it. Their docs are really good, not only for their phone but... - Source: Hacker News / 4 months ago
Tracking MemoryPlugin since Nov 2025.
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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.
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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.
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