Mirror

What it is

Mirror is a free mental-health journaling app available for iOS and Android, currently in the United States only. It is designed as a private space for self-reflection where you choose how to express yourself, through writing, video, or voice recording. Mirror is built by Mindful Digital Therapeutics LLC and is powered by research from the Child Mind Institute, an independent nonprofit organization that studies children's development and mental health. The app is designed to help you gain emotional insight, recognize behavior patterns, and practice mindfulness in a space where your entries remain private to you.

How it works and what you get

Mirror offers three flexible journaling formats to match how you're feeling in the moment. You can write text entries, film a selfie or video message, or record a voice note, each format serves different moods and moments. The app guides reflection through prompts and exercises when you're stuck for what to write or how to start. Guided exercises are built in to help you when you feel inspired or when free-form journaling feels too open.

The app includes a mood check-in feature that helps you track emotional patterns over time. As you journal, you're building a history that Mirror can help you review to uncover patterns and understand yourself in new ways. A feature called "Remix" allows you to revisit and reflect on previous entries, and the app generates personalized summaries of your reflections to deepen self-connection. This replay function is something users describe as useful: one App Store reviewer noted, "it is hard not to look back at the AI summaries."

Mirror goes beyond simple journaling. The app includes links to local helplines and other resources when you need support, making it more than a journal, it's a gateway to help when you need it. The interface is designed to be intuitive, with prompts that help guide your reflection and mood tracking that helps you notice patterns over time.

The app is designed with privacy as a core principle. Your entries are stored only on your device, not on Mirror's servers, so no one can see your entries but you. The company emphasizes this: entries never leave your phone unless you choose to share them. Security protections include biometric access (Face ID) and PIN protection to prevent unauthorized access to your entries. The app complies with rigorous privacy and security standards, including SOC2, CCPA, and COPPA compliance.

Mirror's language support includes English and Spanish, making it accessible to Spanish-speaking users in the United States. The app is available for download on both iOS and Android. Users consistently mention the app's ease of use and the appeal of flexible journaling: one reviewer noted the app was "cool" because "the prompts basically get you going, open you up," and another said it's "easy and meaningful."

What the pages prove

Mirror is completely free to download and use. There is no mention of paid tiers, in-app purchases, or subscription fees anywhere on the site. The app is available only in the United States at present, the site clearly states, "Currently only available in the US."

The app is developed with input from the Child Mind Institute, described as researchers whose work brings scientific backing to the features. The company's site states it is "powered by the researchers at the Child Mind Institute," positioning the app as informed by child and adolescent mental health research.

The app stores data entirely on-device. The site states unambiguously: "Entries are stored only on your device, not on our servers, meaning no one can see your entries but you." This data architecture means your journal content is never transmitted to or stored on Mirror's cloud systems.

Security includes "biometric & PIN security" and the app complies with SOC2, CCPA, and COPPA standards. These are concrete technical and legal frameworks: SOC2 is a security audit standard, CCPA is California's privacy law, and COPPA is the US Children's Online Privacy Protection Act. The app meets these standards.

The app has a global reach in terms of awareness: the site describes itself as "trusted by 100,000 journalers." This is a user base figure published by the company.

What it does not say

Mirror's site does not publish clinical outcomes, effectiveness studies, or claims about symptom reduction. There are no statements that the app treats, cures, or manages any mental health condition. The site does not specify age limits; it lists COPPA compliance without stating what age threshold that involves. There is no information about therapist integration, whether entries can be shared with a therapist, or whether any mental health providers endorse or prescribe the app.

The site does not detail which operating system versions are required for iOS or Android, or minimum device specifications. There is no published information about data retention, how long entries are stored, or how to delete your account permanently. The site does not name insurance coverage, whether any health plans reimburse for the app, or whether there are any employer or group licenses.

The company does not publish pricing for potential premium features, and no statement on the site addresses whether one is planned. There is no published roadmap, timeline for non-US expansion, or statement about upcoming features.

Who it fits and who it does not

Mirror suits someone who journaling but finds a blank page intimidating or repetitive, and who wants help from prompts without committing to daily reminders. It works for anyone in the US who values privacy and wants entries stored only on their device. It's a good fit if you want to try journaling in different formats, some days writing, some days video or voice, rather than committing to one method. Someone interested in noticing their own patterns over time, without external interpretation, will appreciate the reflection tools and summaries.

The app fits teenagers and young adults, given its design partnership with the Child Mind Institute and COPPA compliance. It appeals to anyone who wants to start mental health journaling without creating an account, providing an email, or sharing personal data with a company.

Mirror is not a fit for anyone outside the United States, as it is not yet available there. It is not designed for crisis situations, while it includes links to local helplines, it is a journaling tool, not an emergency service. Someone who needs therapy, medication, or real-time clinical guidance should seek those services; Mirror is a reflection tool, not a treatment. It is also not designed for users who want feedback from a mental health professional integrated into the app, therapist review of entries, or an account that syncs across multiple devices. Someone who prefers one journaling method (writing, for instance) and wants to stick with it might find the multi-format approach unnecessary.