Mental Health Private Diary AI

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Everyone
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About this app

Private Mental Health Diary is a mood tracker designed for people who want to understand their emotional life without sacrificing privacy. There are no ads, no accounts, and no cloud storage. Every entry you make stays on your phone.

The core of the app is a simple daily check‑in. You move two sliders to rate your mood and energy, then choose specific emotions like anxiety, gratitude, or irritability. You can add colour‑coded tags to record habits, symptoms, medications, and activities. Over time, these small moments create a detailed picture of what really affects how you feel.

The statistics section brings that picture into focus. Rather than offering generic advice, the app uses your own data to show reliable connections. You might see how late nights affect your mood the next morning, how regular exercise shifts your energy, or how certain symptoms appear alongside specific emotions. The analysis runs entirely on your device, so the insights are personal and never shared.

An on‑device AI assistant is built into the app to help you reflect and cope. It can suggest breathing exercises, guide you through grounding techniques, or help you structure a journal entry about a difficult moment. Because the model runs locally, nothing you say leaves the phone.

The app also includes practical tools like medication reminders, a floating save button for fast logging, and the ability to export your entire history as a CSV file to share with a therapist or doctor. Rich journal notes can be linked to specific moods, making it easier to spot patterns over weeks or months.

Private Mental Health Diary is developed with input from mental health professionals and is built on a medical‑grade data engine. There are no third‑party analytics, no tracking, and no background data collection. The app is available in 17 languages and works fully offline.

If you are looking for a safe, neutral place to track your emotions and learn from them, this app gives you the tools to do it completely on your own terms.
Log moods privately. Analyze correlations of habits on mental wellness with AI
Updated on
Aug 4, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What’s new

New in 3.7: Mood Monitoring! Track energy, mood, and emotions with our new private journal. See contextual insights on how meals and activities affect your emotional stability. Fully on-device, no account needed.