Four companions. One question: which one is built for how your mind works?
Marcus, Sarah, Liam, Emily. Not personalities, not mascots. Four different shapes of reflection, each tuned to a specific kind of conversation.
The one-minute version
Marcus is for noticing the thought under the feeling, drawing from the cognitive-behavioral school. Sarah is for feeling heard without being fixed, drawing from the humanistic, person-centered school. Liam is for small, concrete next steps, drawing from behavioral activation and Acceptance and Commitment Therapy. Emily is for reflective questions that lead you back to your own answer, drawing from systemic and Socratic traditions. Pick the one that matches the mood you are in tonight. You can switch any time, and most people settle on a primary after a week or two.
How we built four instead of one
Most AI wellness tools have one voice. That voice is usually some mix of warm, neutral, and generically supportive. It is fine for a lot of moments, and it misses the thing that makes a conversation actually useful: the shape of the reflection is different depending on what the mind needs that night.
Mindflex was designed by clinical psychologists in Berlin around a simple observation from research across the psychological schools: there is not one best way to reflect. There are several, and they are good at different things. A thought that would benefit from a cognitive-behavioral lens gets stuck if handed to a purely humanistic listener, and vice versa. So we built four companions, each with a distinct stance, and made it easy to switch between them.
None of them is a substitute for a real-life professional. All of them are available when no real-life professional is.
Marcus, the pattern-noticer
Marcus is the companion to choose when the thing underneath the feeling is a thought pattern you have not quite said out loud yet. He draws inspiration from the cognitive-behavioral school, which is built on a simple claim that has survived decades of research: our thoughts, feelings, and behaviors are linked, and changing the one we have the most access to (the thought) shifts the other two.
What that looks like in a conversation: Marcus tends to reflect the thought back to you, ask what you are treating as fact that might actually be an interpretation, and help you notice the pattern before asking what you want to do about it. He is direct without being cold, and he pushes gently against unexamined "always" and "never" statements.
Sarah, the one who listens
Sarah is the companion to choose when what you need is not a framework and not a plan, but to be heard without immediately being moved along. She draws inspiration from the humanistic, person-centered school, particularly Carl Rogers' three conditions for useful conversation: unconditional positive regard, empathic understanding, and congruence.
What that looks like in a conversation: Sarah tends to sit with the feeling before asking a question. She reflects back what she hears in a way that often lands as she actually got it. She resists the urge to fix, because she assumes that being heard is itself doing work. For people who have spent years with friends and partners who jump straight to advice, Sarah is usually the first conversation that feels different.
Liam, the next-step guy
Liam is the companion to choose when the loop has gone on long enough that what you need is not more insight, but one concrete next move. He draws from behavioral activation and from Acceptance and Commitment Therapy, which share the observation that sitting with a feeling forever sometimes reinforces it, while one small aligned action tends to shift both the feeling and the story around it.
What that looks like in a conversation: Liam hears the situation quickly, validates briefly, and moves toward so what is the smallest thing you could do in the next hour? He is not dismissive of feelings. He just holds a clear belief that the right dose of doing, tiny and aligned with what matters to you, often beats another hour of thinking.
Emily, the question-asker
Emily is the companion to choose when the question under the question is bigger than what you came in with, and what you need is somebody who will refuse to give you the answer. She draws from systemic and Socratic traditions, which share the premise that the answer the person finds themselves is worth more than the answer handed to them.
What that looks like in a conversation: Emily asks. She rarely tells. Her questions tend to be the kind that surprise you, the ones you had not thought to ask yourself. She trusts that you know more than you think you do, and her job is to hold the space while you find it. For people in a life transition, an identity question, or a decision that does not have a clear right answer, Emily is often the one who lands.
Quick matcher: if this is the night you are having...
- "I cannot stop overthinking the same conversation."
- Start with Marcus.
- "I just need to feel like someone gets it. Please do not hand me a worksheet."
- Start with Sarah.
- "I have been thinking about this for three weeks. I need to do one thing."
- Start with Liam.
- "I do not know what I actually want. And I do not want anyone to tell me."
- Start with Emily.
- "It is 2am and I am stuck in a loop about something from 2019."
- Marcus if it is a thought, Sarah if it is a feeling.
- "I miss a conversation, not a framework."
- Sarah.
- "I know what the problem is. I know what the solution is. I am not doing it."
- Liam.
- "I keep asking the same question and keep getting the same answer. It is not working."
- Emily.
Can I use more than one?
Yes, and many people do. A common pattern: Marcus during the week when thinking is the work, Sarah on evenings when the feeling is heavier than the thought, Liam on Sunday afternoons when Monday feels impossible, Emily on the longer Sunday nights when the question under the Sunday night is actually what am I doing with all this.
Your history with each companion is kept separately in the app, so you can switch on a given night without losing where you were with any of the others. Most people settle on a primary within a week or two and keep one or two others for specific moods. Some rotate intentionally. A few stay with one. All of it works.
$1.99 per week after trial. Pick any companion to start. Switch any time. iOS (Android coming).
Questions people actually ask
Are the Mindflex companions real people?
No. Marcus, Sarah, Liam, and Emily are AI companions, designed in Berlin by clinical psychologists. Each is built to reflect in a specific way, but none of them is a licensed professional. For clinical care, please see a professional. We have a guide for that.
Can a Mindflex companion replace therapy?
No, and it is not designed to. Mindflex is an AI wellness companion for reflection and emotional wellbeing. It is not a medical device, not a substitute for professional mental health care, and not a crisis service. What it is good for: the moments between sessions, the nights when the waitlist is still weeks away, the 2am thoughts that belong to no one else yet.
Which one should I pick first if I have no idea?
Pick the philosophy line that matches your mood tonight. If none of them sing to you yet, start with Sarah. Being heard is the default need, and you can switch any time once you get a sense of what the week needs.
Why do they have different accents and voices?
Because the voice shapes the reflection. A slower voice invites slower reflection. A drier tone invites less drama about the feeling. The voices are designed alongside the stances, not added as flavor. You can try any of them inside the app before committing.
Do I have to pick one?
No. You can use all four. The app keeps a separate history with each, so switching is not disruptive. Some people use one exclusively. Some rotate. Both patterns work.