It’s all written down.
But where?
A number in your contacts. Call notes somewhere else. A follow-up in your head. Putting it together means opening another spreadsheet.
Your information stays yours.
We make it
easier to
work with.
A clearer way to work with your information.
People, companies, and next steps in intuitive cards — with built-in AI to help make sense of your notes.
Built-in AI. You stay in control.
A familiar idea.
New possibilities.
The card index, reimagined for your phoneNew possibilities.
01
People & companies
02
History & context
03
Smart notes
04
Next steps
Less system. More substance.
Remember the person.
Not the row number.
You already have the information. Make it easier to live with.
It’s all written down.
One person.
The whole story.
Open a dossier and pick up where you left off: who they are, what you discussed, and what comes next.
A
Atelier NorthDesign studio · example
Anna · founderDiscussed a new project
Send a proposalNext step · Thursday
Dossier structure illustration, not an app screenshot
Demo screens · fictional data
Everything in its place
Three sections.
One clear view.
No hours spent learning a system.
Open it. Get on with your day.
English demo screens adapted from the app. Names and activity are fictional.
SMART NOTE · BUILT-IN AI
First, the thought.
Then, the order.
You don’t have to sort every thought into a form. Write a note in your own words: Smart Note helps identify companies, contacts, and tasks.
Review first. Save when you’re ready.
EXAMPLE NOTE
“Spoke with Anna at Atelier North. I need to send her a proposal for the new project on Thursday.”
CompanyAtelier NorthContactAnnaTaskSend a proposal
An example of note parsing, not a live AI demo. Notes are processed in the app.
Context, not cells
People, companies, and agreements belong together, not scattered across unrelated lists.
Your data. Your control.
Our principle: your information belongs on your device or in your own sources. Card Index is a tool for working with it, not a place to hand it over.
Right there with you
Made for the moment after a meeting, a quick call, or a thought while you’re on the move.
A few details
Good question.
What Card Index is.
And what it isn’t trying to be.
Is this another CRM?
No. Card Index is a personal mobile interface for business information. People and companies, conversation history, and next steps come first, not reporting and funnels. It does not claim to replace every feature of a corporate CRM.
Can I connect my own database?
Optional API or MCP sources let you work with supported external data. Available operations depend on the source and its permissions. This is not a promise of a universal connector for every database or CRM.
What does Smart Note do?
It helps turn free-form text into structured records: companies, contacts, tasks, and events. You can review the result before saving. AI note processing needs an internet connection; this is not a promise of full AI search across your database.
Where can I download the app?
Card Index for Android is available on Google Play. The current free beta has purchases disabled. Store availability depends on your region and device; check the listing for current requirements. This website does not announce an iOS release.
Is Card Index a cloud storage service?
No. A new installation starts with an empty local card index. Core working records can be viewed and edited offline. They stay on your device unless you choose to export them or connect a supported source. Online AI is separate: submitted text and the minimal context for a command are sent to an external AI provider. Account and service data are explained in the app privacy policy.
CARD INDEX · BY BRAIN INDEX
Good connections
deserve a good memory.
People, companies, and next steps in one place.
Get Card Index for Android on Google Play.
Android · free beta · purchases disabled
Get it on Google Play