Patterns is an open-source, privacy-first recovery app built around ERP (Exposure and Response Prevention), the evidence-based therapy for OCD. Built with Flutter, it runs on iOS, Android, macOS, Windows, and Linux, giving you a focused, distraction-free space to journal, track, and actually practice recovery, not just log it.

Most mental health tools rely on cloud storage, but Patterns is local-first. Your reflections, obsessions, and distress levels stay exactly where they belong: on your own device. No accounts, no cloud uploads, no third-party tracking, just a private space for your mind.

Key Features:

• Guided ERP: Structured exposure and response prevention exercises to practice at your own pace.

• Compulsion Delay: Put a pause between the urge and the action, and watch the urge rise and fall on its own.

• OCD Tracker: Document obsessions and compulsions as they happen, rating distress (SUDS 0-10) to identify triggers.

• Emergency Toolkit: Fast grounding techniques for the moments distress spikes.

• Pattern Analytics: Intuitive heatmaps and charts that visualize your triggers and progress over time.

• Privacy by Design: Local-only storage ensures your most personal data never leaves your device. Optional app lock via Face ID or device passcode.

Patterns Pro (one-time unlock, no subscription):

• Exposure hierarchy builder and exposure materials (scripts, images, loop tapes, notes, all in one place)

• Urge surfing and response prevention tracking

• Structured multi-day ERP programs

• Uncertainty training

• Action planner and behavioral experiments

• Recovery metrics showing real trends over weeks, not just today

Patterns started as a personal tracker built by someone who has OCD and couldn't find a tool that went beyond logging. It's grown into a full recovery toolkit, with the source open for anyone who wants to see exactly how their data is handled.