CortexOS - Private AI Journal

Name: CortexOS - Private AI Journal
Author: Orlin Ralinov Martinov

Android app by Orlin Ralinov Martinov. Health & Fitness · Orlin Ralinov Martinov

Store rating: Unknown
Store rating count: Unknown
Download price: Free to download
In-app purchases: Listed by the store
Version: 1.5.0
Listing last refreshed: 2026-09-16

Store description excerpt

CortexOS is a private AI journal and mood tracker that understands how you think. Write freely in a secure, encrypted diary and let on-device AI analyze your emotions, detect patterns, and surface insights you can't see on your own. No email, no password, just a recovery phrase. Everything stays on your phone. SMART JOURNAL WITH AI MOOD TRACKING Most journal apps store your words. CortexOS reads between the lines. The AI detects over 20 emotions in every entry, tracks mood patterns across days and weeks, and identifies cognitive distortions like catastrophizing, black-and-white thinking, and emotional reasoning. Think of it as a mood diary that actually understands what you're feeling. Whether you journal for anxiety, depression, stress relief, or personal growth, CortexOS gives you data no gratitude journal or simple diary provides. WHAT CORTEXOS DOES • AI Emotion Tracker: Detects specific emotions, not just positive or negative. Tracks emotional health over time. • Mood Analysis: See trends across 7, 30, 90 days, and a full year. Identify what triggers stress, burnout, and anxiety before they spiral. • Behavioral Patterns: 15 cognitive distortion types, recurring thought patterns, avoidance behaviors. Watch patterns emerge, stabilize, fade, or resolve. • Deep Analysis: On-device LLM provides CBT-informed observations with reframing suggestions and coping strategies grounded in CBT, DBT, and ACT. • Reflection Sessions: AI-guided conversations that adapt to your emotional state. A thought partner that remembers your patterns and history. • Psyche Layer: A unified psychological profile that evolves with every entry. Learns your emotional baseline, cognitive tendencies, recurring themes, and unresolved topics. • Therapist Export: 11-section PDF report with emotion trends, cognitive distortions, and domain-emotion correlations. Customizable. No journal content included. • Voice Journal: On-device Whisper transcription, 99 languages. No cloud speech recognition. • Smart Nudges: AI observations after every entry. Reflection nudges, reminders, and personalized prompts. Never face a blank page. ZERO-KNOWLEDGE ENCRYPTION This is not a diary app that promises privacy in its terms of service. CortexOS uses zero-knowledge encryption, meaning we are mathematically unable to access your entries. • AES-256-GCM encryption, the same standard used by governments • Keys derived locally from your recovery phrase via Argon2id • Optional encrypted cloud backup (we can't decrypt it, ever) • Biometric lock with auto-lock after 30 seconds • Zero tracking, zero analytics on your content • If we're subpoenaed, we have nothing to give. Literally. If you've been looking for a secure journal, locked diary, or encrypted journal app that actually means it, this is it. BUILT FOR YOUR MENTAL HEALTH JOURNEY Whether you're working through therapy, managing anxiety, practicing mindfulness, or building self-awareness, CortexOS goes beyond a simple daily planner.

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