
Notion
Obsidian
Evernote
Tana
Supermemory
Puppet
Bear
Capture and access information from anywhere

SpacePrompts
500+ ChatGPT Prompt Templates
PromptHub
ChatGPT Prompts
ChatGPT Prompts for AI
PromptMatrix
iideaGPT
ImPromptr helps researchers and AI power users craft better LLM prompts through iterative refinement.

Which is more popular?
Based on our record, Mem seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | get.mem.ai | impromptr.com |
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| Company | — | Startup from the United States · 1 - 9 employees · 2026 |
| Listed in |
What each product offers, as listed by its team.


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External articles and on-site reviews we used to compare the two products.


Mem is a note-taking app focusing on simplicity, quickness, and collaboration. The app allows users to capture, connect, and share information easily. It combines features such as lightning fast capture, always-on...
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Recommendations tracked on public social media and blogs since March 2021.


Eg https://get.mem.ai/ approach or https://beta.omnilabs.ai/ But then tailored to Obsidian. Source: almost 4 years ago
I use Notion but I have heard that the andriod experience is not the best. You may want to try Coda, Obsidian, Mem or Anytype. I know of a few others but I think for the purpose of a second brain these can do the trick it’s just about... Source: over 4 years ago
Https://get.mem.ai right now it isa web app they have an iOS app in beta. Source: over 4 years ago
Tracking ImPromptr since Feb 2026.
When comparing Mem and ImPromptr, you can also consider the following products.

All-in-one workspace. One tool for your whole team. Write, plan, and get organized.
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Never lose your best AI prompts again. SpacePrompts provides seamless prompt management to help you save, organize, and access your ChatGPT, Claude, Gemini, and other AI assistant prompts instantly across all your devices.
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A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
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Break through creative blocks and get things done in a flash
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Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
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Test, deploy, and manage your prompts with PromptHub, a prompt management tool designed to be usable by your whole team, not just engineers.
Compare PromptHub to Mem or ImPromptr: