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Mentalium turns a CBT thought record into a two-minute voice entry, transcribed on-device.
Grounded in available product and source data
A CBT thought record works best captured the moment it happens, not reconstructed from memory hours later — Mentalium is a voice CBT diary with on-device transcription built specifically to close that gap, turning a five-question thought record into something spoken rather than handwritten.
Each entry follows the same structure: rate anxiety on a 1-10 scale before speaking, work through five CBT questions about the situation and the thoughts it triggered, then rate anxiety again afterward — the on-device model transcribes and structures all of it locally, and the site states voice never leaves the phone. The site adds automatic cognitive-pattern analysis on top of that transcription, recognizing 10 distortion types like catastrophising and mind-reading across all 7 supported languages, entirely on-device.
That local-only design has real tradeoffs worth naming directly: entries live in a local database with no cloud backup, so the site states uninstalling the app removes the history with it, and switching phones means exporting an Excel report first since there's no cross-device sync to fall back on. What that same design buys back is a therapist-ready report on demand — an Excel export for any chosen period showing dates, anxiety scales, and the transcribed text, sent by email so a session can start from an actual week instead of a memory of it.
The app names specific conditions it's built to help track between sessions — depression, generalised anxiety, panic attacks, social anxiety, OCD, PTSD, insomnia, and adult ADHD — and backs the general CBT-with-diary approach with cited published research, including a 2023 meta-analysis of 409 RCTs (Cuijpers et al.) and NICE's 2022 guideline naming CBT as first-line treatment for depression.
Worth stating clearly, in the site's own words: Mentalium is a self-help tool, not a replacement for therapy, and it is not a medical device and is not intended to identify or treat any condition — for a severe depressive episode or an acute crisis, the site directs a user to a psychiatrist or psychotherapist first, and the app is built for adults 18+ only.
No — the site states this directly: it's a tool for keeping a CBT diary between sessions, and therapy with a CBT specialist remains the core treatment for moderate or severe conditions; a severe episode or acute crisis should go to a clinician first, not the app.
No — since entries are stored only in a local database with no cloud sync, the site recommends exporting an Excel report of the full history before switching devices, since there's no way to pull old entries back afterward.
The site states yes, as a self-help tool for mild anxiety, stress, or general emotional tracking, though it notes the effect is considerably stronger for moderate or severe symptoms when the diary runs alongside regular therapy rather than replacing it.
That's the specific design intent — writing by hand during an attack is described as impractical, so the voice flow is built for capturing just a few short data points (an anxiety number, a sensation, a thought) in real time rather than a polished paragraph.
The site cites external, published sources rather than relying only on its own claim — including a 2016 meta-analysis (Kazantzis et al.) finding a large effect from consistent CBT homework, and NICE's 2022 clinical guideline naming CBT as first-line treatment for depression.
No — the site states it's built for adults 18+, and directs younger users toward a child or adolescent therapist trained in CBT instead, since adolescent anxiety and depression call for a different clinical protocol.
