Designing an AI Tool for Thinking
Reinventing Journaling With AI
Journaling has always seemed like a powerful tool.
It helps with reflection, memory, and understanding what's happening in your life. But traditional journaling has one big problem: it requires discipline most people don't have.
Writing for thirty minutes every day sounds good in theory. In practice, it rarely happens.
That realization is what started this project.
I wanted the benefits of journaling without the friction.
And the obvious solution was voice.
The Insight: Speaking Is Easier Than Writing
There are many moments in a normal day when reflection would be easy if the barrier were low enough.
Driving home from dropping my kids off at school. Walking somewhere. Sitting in the car before going into a meeting.
In those moments, speaking for two minutes is effortless.
Writing for ten minutes is not.
Voice journaling removes most of the friction that prevents people from capturing their thoughts. You can simply talk.
But once AI enters the picture, something much more interesting becomes possible.
Instead of storing raw entries, the system can turn spoken thoughts into structured knowledge.
That insight became the foundation for the product.
A Journal That Understands What You Said
The product experience is intentionally simple.
When you open the app, the main screen has only one primary action: record.
You tap the record button and start talking.
When you're finished, several things happen automatically:
- The recording is transcribed into text.
- AI processes the entry.
- Metadata is generated.
The system extracts:
- themes
- mood
- tags
- key ideas
The entry is then stored in a searchable archive.
Instead of a collection of disconnected notes, the journal gradually becomes a structured record of your life.
Weekly Reflections Generated by AI
One of the most powerful features emerged once the system started accumulating entries.
Every week, the AI generates a weekly summary.
This acts as a "week in review" built entirely from your own recorded thoughts.
The summary includes:
- mood trends across the week
- recurring themes
- major highs and lows
- meaningful quotes from entries
- graphical mood timelines
These reflections often surface patterns that are difficult to notice in real time.
It's one of the moments where the system starts to feel genuinely intelligent rather than just automated.
The Moment It Became Real
The turning point during development was seeing the weekly insights for the first time.
Instead of simply storing journal entries, the system was interpreting them.
It could identify recurring themes I hadn't consciously noticed.
It highlighted moments that mattered.
It created summaries that made the week easier to understand at a glance.
That was the moment the project shifted from being an experiment to feeling like a genuinely useful tool.
The AI wasn't a gimmick. It was providing perspective.
A Personal Knowledge Archive
Over time, the system becomes something more than a journal.
It becomes a searchable archive of your thoughts, experiences, and intentions.
You can ask questions like:
- What was I worried about last month?
- What goals did I say I wanted to work on?
- What patterns keep repeating in my entries?
Because the entries are structured with metadata and themes, the archive becomes queryable.
Instead of isolated journal entries, you get a knowledge base about your own life.
The system can even surface commitments you made earlier.
If you mentioned a goal two weeks ago and haven't revisited it, the archive can remind you.
Why This Kind of Tool Matters
Most journaling apps today fall into one of two categories:
- simple text notebooks
- heavily guided self-improvement apps
Neither approach felt right for what I wanted.
I didn't want therapy prompts or motivational coaching.
I wanted something neutral.
A modern version of a traditional journal, enhanced with AI.
Something that helps you:
- capture thoughts easily
- reflect on patterns
- explore your own history
AI makes that possible in ways that weren't feasible before.
Building Something I Wanted Myself
This product started with a simple motivation: build the tool I wished existed.
That’s often the most reliable way to discover useful products.
If a problem feels obvious and frustrating to you, chances are many other people feel the same way.
After analyzing existing journaling tools on the market, it became clear that most of them either focus heavily on self-improvement frameworks or lack meaningful AI-driven insight.
This product aims to strike a different balance.
Simple voice capture.
Powerful AI interpretation.
A personal archive that becomes more valuable over time.
The Bigger Vision
AI is changing the kinds of tools we can build.
For the first time, software can help people reflect on their lives at scale.
Instead of static journals, we can create systems that:
- understand what we say
- identify patterns in our thoughts
- surface insights we might miss
- build long-term personal memory systems
This project explores what happens when you treat journaling not as a notebook, but as a thinking tool.
A system that helps people understand themselves a little better over time.
Marco van Hylckama Vlieg
Product innovator and creative technologist building AI-native tools, interactive systems, and experimental software.