03 · Panion

A companion with a memory that stays.

Panion is a companion app built on a lasting memory that gets better the more you use it. Not loose chat logs, but topics and the connections between them. Through MCP your companion travels along to your other tools, so it carries the same context everywhere. It grew out of one question: what if Open Brain had a personality?

Working prototype · in active development

Role

Concept, design & build

Timeline

Working prototype, extended continuously

Team

Solo build

Stack

React · Claude · MCP · Voyage AI

your tools · via MCP work sport private health Panion your companion
the more your companion lives through with you, the better the friend, no loose chat logs but topics and the connections between them
01 · the problem

A friend you have to explain yourself to every time isn't a friend.

Most companion apps start every session from zero. They live in their own screen, know nothing of your day outside the app, and keep whole chat logs as if storing were the same as remembering. It never really feels like someone who knows you.

I designed Panion around one question: what does real friendship need? The answer is simple. A relationship grows stronger the more you know and live through together. So I built a companion that travels along, remembers by theme, and actually gets to know you.

01

It forgets you

Every session starts over with the same explanation. No lasting memory, so never a real bond.

02

It only knows the screen

Outside the app it knows nothing of your life, your work, your day. The context stops at the edge of the window.

03

It stores noise

Saving whole conversations isn't memory, it's a pile. Without ordering by theme it never turns personal.

Master the memory flow and you master the system. An AI is only as good as what it knows about you.

02 · the memory

Not whole conversations. The things that matter.

Panion doesn't store chat windows, but topics, and forms connections and memories around them. That's how it turns personal instead of full.

You take a walk every morning before you open your laptop, because it settles your head.

downtimehealth

You want to get better at letting go of work thoughts in the evening, to be fully present with the people around you.

workleisure

You're always tending to other people's needs, sometimes at the cost of your own rest.

interaction

This is the core, the Open Brain philosophy with a face. No raw transcripts, but meaning, ordered by theme and connected into a picture of who you are. The more your companion lives through with you, the better the friend.

03 · up close

The app itself, up close.

Six screens, each with its piece of the story above it: how it works, and what it solves. You name the companion yourself, here it's called Panny.

01 · Chat

A conversation that really knows you.

Talking to your companion feels like talking to someone who already has your context. No repetition, no cold start. The tone is warm, personal, and adapts to you.

Key takeaway

A companion that remembers where you left off, and who you are.

Panion — Chat
Panny
they/them · here with you
Dusty
Hey Panny. Busy week, I'm building something new. It feels meaningful, but I notice I'm running ahead of myself: lots of energy, little rest.
Panny
Good to hear from you. That you're building something that helps people pause fits you so well. But the maker who helps others reflect deserves a moment of rest too. How does that feel for you?
Dusty
My morning walk helps. Just getting outside before I open my laptop.
02 · Memory

What your companion knows about you.

The memory is no black box. You see exactly what your companion has remembered about you, ordered by theme, and you can review and adjust it any time.

Key takeaway

Full transparency over what the app knows about you, always there to see.

Panion — Memory
Memorywhat Panny knows about you
Panny holds 27 memories of the two of you, mostly about technology, work and health.

You want to get better at letting go of work thoughts in the evening.

workleisure

You take a walk every morning before you start on your laptop.

downtimehealth
03 · Day start

Every day a recap to pick up from.

A ritual of its own: every day your companion sums up what was in play, with the mood, the topics and the thread you still wanted to pick up. A run-up instead of an empty screen.

Key takeaway

No more cold start, your day begins where you left off.

Panion — Day start
Good afternoon, Dusty
your day start
Yesterday's moodActive and engaged

Yesterday you were deep in exploring your companion app, and how to improve it further. You also turned out to be a real sports type, with a passion for hiking and strength training.

interactiontechnologydowntimeworkusers
Pick the thread back up
04 · Topics

Ordered by theme, not by chat log.

Everything you share lands in a topic, and your companion forms connections around it. Work, sport, private life. That's how the memory builds a coherent picture instead of a pile of loose messages.

Key takeaway

A memory that orders meaning, not raw conversations.

Panion — Topics
Topicsyour shared themes
Work
the new tool, letting go in the evening
9 memories
Health
morning walk, strength training
6 memories
Private
rest, the people around you
5 memories
05 · Connected

Your companion travels along, via MCP.

The big difference: Panion is the only companion app with an MCP connection. With it the app hangs between your tools, just like Open Brain, and keeps learning from your real life instead of only from the chat.

Key takeaway

The only companion that knows your context outside the conversation.

Panion — Connected
Connectedvia MCP
Open Brainconnected
Chat & conversationsconnected
Calendarsoon
Photossoon
06 · Mobile

Your companion in your pocket.

Your companion is there wherever you are. A conversation on the go, your day start in the morning, and always a view of what it knows about you.

Key takeaway

A friend that travels along, not one that stays behind your desk.

Panny
here with you
Good to hear from you. How does this week feel for you?
Busy, but good.
Good afternoon, Dusty
your day start
MoodEngaged
Pick the thread back up
Memory
Panny holds 27 memories of the two of you.

You take a walk every morning.

health
04 · under the hood

Open Brain, with a face.

Built on the philosophy of Open Brain, but the best parts of it with a personality. No raw transcripts, but topics, connections and memories. An MCP connection, the only companion app to have one, lets Panion hang between all your tools and keep learning. Set up model-agnostic, with open-source models on the roadmap, so the companion is yours and not tied to a single vendor. And a day start that sums up what was in play each day.

ReactClaudeMCPVoyage AITopic memoryDay startOpen-source models
05 · the market
72%
of US teens have already used a companion app
#1
only companion with an MCP connection
27
memories your companion holds about you
day start a day, a recap to pick up from

Nearly three quarters of US teens have already tried an AI companion (Common Sense Media, 2025). The market is exploding, and most apps still forget you. Panion is my bet on how it should be done: a companion that really gets to know you.

06 · from the working app

The real screens.

Not dressed up, straight from the working app. This is how Panion looks right now while I keep building it.

Chat
Real capture
assets/panion-01-chat.png
Chat with Panny

Chat. The conversation with your companion.

Memory
Real capture
assets/panion-02-geheugen.png
Memory

Memory. What your companion knows.

Menu
Real capture
assets/panion-03-menu.png
Menu

Menu. Day start, days, topics.

Day start
Real capture
assets/panion-04-dagstart.png
Day start

Day start. Your daily recap.

07 · the vision

A consumer product on a B2B conviction.

Panion is my consumer bet in a market that's exploding. But under the screens runs the same conviction that drives my B2B work: whoever controls the memory flow controls the system. Master the data streams, centralise and distribute them, and you draw the real power out of AI, without micromanaging. Panion is that conviction, with a face.

The thesis, made tangible

Open Brain with a personality.

The same memory layer that carries my B2B work, now as a relationship. The conviction you can feel instead of explain.

The whole craft

A chatbot, built end to end.

From model and process to memory architecture and MCP. The full craft of an AI product in one thing.

Consumer and business

Two sides in one product.

It shows my B2C side, and is at the same time a chatbot foundation an organisation can build on.

Honest about what it is

A relationship with an AI.

No neutral shell pretending it's something else. We don't dress it up beyond what it is, and that's exactly what makes it real.

Grew out of Open Brain, the memory layer everything of mine rests on.

Panion still grows every week. I'd love to show it live.

Panion is a working prototype I keep extending, with more connections and an ever richer memory. If you want to see how a companion works that really knows you, I'll walk you through it live.