
Mem0
Memori
Agentmemory
Supermemory
Tempreon
cognee
TheSecondBrain.dev
Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client
Narrow.io
Twito
BlackMagic.so
HiTest
Hypefury
Litmus
Life on Twitter
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Which is more popular?
Website, pricing, platforms and company facts side by side.
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WA
When Active
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| Website | chainmemory.ai | whenactive.com |
| Pricing | — | |
| Listed in |
In their own words, as submitted to SaaSHub.

ChainMemory gives your AI agents persistent memory that belongs to YOU — not to a single vendor. Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored...
No description of When Active yet.
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
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using ChainMemory and When Active. For example, how are they different and which one is better?
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