Insights from previous sessions often fade. Lucca holds them for you — so they're there when you need them again.
A personal reflection journal — quiet, private, on your device. You decide what to bring into therapy.
Here's where it tends to help, and where another kind of support might fit better right now.
Lucca is useful when you're in therapy and want a quiet place to capture what comes up between sessions. People who like to reflect, journal, or think things through in writing often find Lucca fits naturally.
If you're in acute distress or feeling fragile right now, what helps usually isn't more reflection — it's connection, support, or rest. A few notes on when this isn't the right tool right now:
If you're not sure, talking to your therapist about whether Lucca might fit is a good place to start.
Here's what using Lucca looks like — from before your next session, through the days that follow, and back around again.
What moment from this week keeps coming back to you?
In the days before your next session, Lucca surfaces an open question and a place to drag-sort what you want to bring up. No reminders. No guilt if you don't open it.
Recording with you.
Lucca records on your device. Audio is processed and discarded — never stored. The interface stays out of the way during session so it doesn't compete for attention.
Session complete.
Take a moment if you need it.
No celebration screens, no pressure to process now. Just a brief, quiet acknowledgment before the rest of your day takes over.
I noticed I was holding my breath again — right when I started telling that story.
When something stays with you — a moment, a sentence, a body sense — you can mark it. Lucca remembers, so you don't have to.
You've talked about your father in three of the last four sessions.
Themes that take months to notice in session can become visible earlier. Lucca doesn't interpret — it shows you what you've been talking about.
The session revealed a struggle where your physical exhaustion was being framed as a personal failure rather than a limit worth honoring.
Your body has a limit that cannot be crossed
Is this still ringing true?
A digest of what's surfaced — in your own hand. By the time you sit down, the threads are already in your head. The first ten minutes do real work.
Not in the abstract. The specific things you might notice in your own experience of therapy.
You arrive remembering what you wanted to bring up — without having to recap. The first ten minutes do real work.
Themes that take months to surface in session can be noticed earlier — in your own words, on your own terms.
Lucca holds what surfaces between sessions. Therapy itself stays between you and your therapist.
Encrypted, on your device, exportable. You can take it with you, delete it, or walk away. It's yours.
Three things, all true at once. No asterisks.
Audio is captured on your computer and discarded after transcription. Lucca doesn't store audio.
All AI insights are generated by a model running on your device. No cloud, no API calls, no third parties.
Your reflections are encrypted with AES-256 on your machine. Only you hold the key.
We made this choice because what you say in therapy is yours. A person's private reflections are among the most sensitive data they can produce — and no anonymization is good enough to send them anywhere else.
The things people often wonder before they try Lucca.
What if I share too much in Lucca?
There's no "too much." Lucca is yours — a private place to write what comes up. Nothing is sent anywhere; nothing is shared without you choosing to share it. What you write is for you.
Will my therapist see what I write?
No. There is no therapist portal, no shared dashboard, no login for them. You decide what to bring into session. Lucca holds the rest, only for you.
What if I have a hard moment while reflecting?
That can happen. If you're in serious distress, Lucca shows you support resources rather than generating reflection on that content. Lucca isn't a substitute for support during a crisis — that's what crisis lines, your therapist, and people you trust are for.
What if Lucca's AI gives me bad advice?
It doesn't give advice. Lucca's AI surfaces patterns and questions in your own words — it doesn't tell you what's wrong or what to do. The therapy itself belongs to you and your therapist.
What if I don't want to record some sessions?
Don't. Lucca only records when you choose to. Some people record every session; others record only when something feels worth keeping. Either is fine.
What if I'm not currently in therapy?
Lucca was designed especially for between-session reflection, but you don't have to be in therapy to use it. Some people use Lucca as a personal reflection journal even when they're not currently in therapy.
What happens to my data if I stop using Lucca?
It stays on your device, encrypted. You can export it, delete it, or simply walk away. There's no backend copy to clean up.
If Lucca interests you and you'd like to bring it into your work with your therapist, here's how to start that conversation.
Most therapists are familiar with the idea of journaling between sessions. Lucca is a quiet extension of that — a private journal that remembers what you've talked about and helps you hold the threads.
You might say something like:
"I've been using a tool called Lucca to keep notes between sessions. Would you be open to me bringing things up that come from there?"
You don't need permission to use Lucca on your own. You also don't need to share anything from it unless you want to.
If your therapist wants to learn more, there's a page that walks them through what Lucca is.
Show your therapist →No credit card to start. If it's not for you, no pressure to continue.
Currently macOS only. Windows and Linux are on the roadmap.