The zero-knowledge AI journal with on-device AI that reads what you wrote and reflects on it, keeping your words on your phone.
A private-by-default clipboard manager for macOS that opens from the notch
Stage
Startup
Not given
Founded
Not given
Not given
Based in
MT
Not given
Pricing model
Freemium
Free trial
Pricing
Free: 10 encrypted entries per month. Premium Monthly: $7.99/month. Premium Annual: $49.99/year. Lifetime: $99.99 one-time purchase. All paid plans include a 7-day free trial.
Personal (1 Mac): $14.99 launch pricing, $29.99 after launch. Plus (3 Macs): $29.99 launch pricing, $39.99 after launch. Studio (5 Macs): $39.99 launch pricing, $49.99 after launch. One-time payment with lifetime updates.
Key features
On-device Llama 3.2 language model with no cloud calls
20+ emotion detection with intensity scoring
Deep Analysis: multi-paragraph AI reflections connecting to past entries
Cognitive distortion alerts based on CBT principles
On-device voice transcription with OpenAI Whisper
Zero-knowledge cloud vault with AES-256-GCM encryption
Memory layer that learns your patterns over time on-device
Behavioral pattern detection and cognitive pattern naming
7-day chapters that automatically organize journaling into narrative arcs
Therapist PDF reports for sharing with mental health professionals
Clipboard history that captures text, images, screenshots, colors and vector graphics with full formatting preserved
Search entire clipboard history with results from text inside screenshots using OCR
Paste Stack to copy multiple items and paste them one by one in order
Automatic detection and hiding of passwords, API keys and tokens behind dots
Screenshot markup with arrows, boxes, notes, text and blur before sharing
Screenshot beautification with presets for social platforms like Instagram, LinkedIn and YouTube
Color palette generation from hex and RGB values with matching complementary palettes
Multi-copy to select and paste multiple items together in one action
Custom categories to organize and permanently keep important clips
iCloud sync across multiple Macs with end-to-end encryption
What makes it different
Only journaling app combining zero-knowledge encryption with on-device AI analysis
Open-source cryptographic core published under MIT license on GitHub
AI runs entirely on-device with zero network calls for data processing
Recovery phrase creates permanent data deletion if lost, proving zero-knowledge works
Opens from the notch on macOS for one-hover access to your entire clipboard history
Built entirely for keyboard control with every function accessible without leaving the keyboard
One-time purchase with lifetime updates and no subscription required
CortexOS
CopyPasta