Cotidie - AI Journal & Diary

Your thoughts deserve more than a blank page. Cotidie is the AI-powered journal that listens, understands, and grows with you — turning everyday reflections into lasting self-discovery.

Whether you write three words or three pages, Cotidie meets you where you are. Express yourself through text, voice, drawings, photos, or stickers — then let intelligent AI help you uncover what your words truly mean.

AI CHAT COMPANION
Talk through your thoughts with seven distinct AI personas, each offering a different perspective — from balanced guidance and deep mentorship to creative dreaming, playful humor, and heartfelt empathy. Like having a thoughtful friend available whenever you need one.

UNDERSTAND YOUR EMOTIONS
Track how you feel with 44 nuanced emotions — far beyond simple "happy" or "sad." Visualize your emotional patterns with mood maps and trend charts that reveal what truly affects your wellbeing over weeks and months.

INSIGHTS THAT MATTER
Receive personalized Weekly and Monthly AI Insight reports that connect the dots across your entries. Discover recurring themes, emotional shifts, and growth patterns you might never notice on your own.

YOUR SECRETS, TRULY SAFE
The built-in Secret Vault uses AES-256 encryption with biometric and PIN protection. Your most private thoughts stay protected on your device. No ads. No data selling. Fully compliant with GDPR, KVKK, and CCPA.

RICH JOURNALING TOOLS

Drawing canvas for visual expression
Voice journaling with speech-to-text
18 fonts, 12 beautiful themes, and rich formatting
Photo and sticker support
Smart semantic search powered by AI
Time Capsule — write letters to your future self
BUILD LASTING HABITS
Set goals, track habits, and maintain streaks that keep you motivated. Whether you journal daily or weekly, Cotidie helps you build a mindfulness practice that sticks.

AVAILABLE WORLDWIDE
Journal in your language — Cotidie supports Turkish, English, French, German, Spanish, Italian, Vietnamese, Japanese, Korean, and Polish. Export your entries anytime in JSON or PDF. Your journal, your data, always.

FREE TO START
Cotidie is free to download with full journaling capabilities. Upgrade to Premium to unlock AI Chat, advanced insights, the Secret Vault, and more.

Premium is available as an auto-renewable subscription. Payment is charged to your Google Play account at purchase confirmation. The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in Google Play subscription settings.

Start writing the story only you can tell. Download Cotidie today.