A mental health chatbot is an artificial intelligence programme designed to hold conversations about emotional wellbeing, offer stress, anxiety or sadness management techniques and, in the most advanced models, adapt its responses to each user's psychological profile. Since Woebot launched in 2017 as a Stanford project, these assistants have gone from technological curiosities to tools used by millions of people worldwide. The question many ask is not whether they work technically, but something deeper: can a machine really listen to you?
| Chatbot | Approach | AI | Relationships focus | Price |
|---|---|---|---|---|
| Woebot | Individual CBT | GPT-4 + proprietary model | No | Free |
| Wysa | CBT + mindfulness | Proprietary model | No | Freemium ($60/year) |
| Youper | Emotional tracking | Proprietary model | No | Freemium |
| Replika | Emotional companionship | GPT-4 | Simulated | Freemium |
| LetsShine.app | Relationships + emotional archaeology | Gemini Pro | Yes (mediator) | From $9/mo |
Most mental health chatbots are built on a combination of three technologies:
When you tell a chatbot "I feel alone", the system does several things simultaneously: identifies the emotion (loneliness), assesses the intensity, checks your conversation history for context and selects the most appropriate intervention according to the programmed therapeutic protocol.
This is where radical honesty is necessary.
What AI does when it "listens": it processes your text, identifies semantic patterns, classifies them according to trained emotional categories and generates a response that maximises the probability of being helpful according to its objective function. It does not "feel" empathy. It does not "understand" your pain in the phenomenological sense. It has no subjective experience.
What the user feels when AI "listens": relief. A sense of being understood. Reduction in rumination. Many users report that talking to a chatbot is easier than talking to a person, precisely because the machine does not judge, does not take offence, has no agenda of its own and is always available.
The paradox is revealing: AI does not listen in the philosophical sense, but the effect on the user can be genuinely therapeutic. The question then is not whether the machine "really listens", but whether the result — that the person feels heard — is sufficient to generate positive change.
The evidence is promising but nuanced:
Most mental health chatbots are designed for individual use: one person talks to the AI about how they feel. The approach of LetsShine.app is different: it functions as a mediator between two people. It does not just listen to one person; it tries to understand the complete relational system — the dynamics, the cycles, the wounds of each person that are activated in their interaction with the other.
This distinction matters because relationship problems do not live inside one person. They live in the space between two. An individual chatbot can help you manage your anxiety after an argument, but an AI mediator like LetsShine.app can help both of you understand why that same argument repeats every time money comes up.
A chatbot is a good option when: you need a space to vent without judgement, you want to learn emotional management techniques, you are looking for support between therapy sessions, or your problem is mild and situational (work stress, a one-off argument with your partner, insomnia from anxiety).
Seek a human therapist when: symptoms persist for more than two weeks, significantly affect your daily life, include suicidal ideation or self-harm, or relate to unprocessed trauma from the past.
The best strategy is not choosing one or the other, but combining them: a professional for deep work and an AI tool for continuous support.
Some offer a free version with limited features (Woebot, Wysa). Full versions typically cost between $5 and $20 per month. LetsShine.app has plans from $9 per month with full access to AI mediation.
No. A chatbot can identify indicators consistent with anxiety or depression and suggest you consult a professional, but it does not have the capacity to issue a clinical diagnosis.
It depends on the platform. Verify that it complies with data protection regulations, encrypts communications and does not share data with third parties. Read the privacy policy before sharing sensitive information.
It is possible if the AI gives inadequate responses, if it delays the search for professional help or if it creates dependence. Use the chatbot as a complement, not a substitute, and if you notice you feel worse, stop using it and consult a professional.
For individual issues (anxiety, stress), Woebot and Wysa have good evidence. For relationship problems, LetsShine.app is the most specialised option, as it functions as a mediator between both members of the couple, not just as individual support.
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