Sai: Relationship Stress Diary
Attachment & Conflict Tracker
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Reflect on article prompts and browse your emotional journey with our clearer, updated diary interface.
Drained by complicated relationships or recurring arguments?
Sai is a Relationship Stress Diary and Attachment & Conflict Tracker designed to help you log emotions per person, spot interpersonal triggers, and understand your behavioral patterns with AI.
Add the people who shape your day—your partner, spouse, friends, family members, or coworkers. Because the exact same day feels completely different depending on who you interacted with, Sai organizes every mood check-in by relationship.
■ Who is Sai for?
• Anyone looking for a dedicated relationship stress diary to untangle couple conflicts, family boundaries, or workplace tension
• People who want an attachment & conflict tracker to observe their defense mechanisms and emotional triggers across different bonds
• Those who find long journaling exhausting and want a 3-second check-in for mood, body tension, and coping responses
• Users who love tracking their monthly emotional rhythm right from a Home Screen mood calendar widget
■ 3-Second Check-In per Person: Mood, Body Tension & Defense Patterns
Tap your current mood, core emotions, physical tension level on an intuitive slider (such as chest tightness or restlessness), and 6 self-protective defense patterns. Keep a quick one-tap log or write a private vent note at your own pace.
■ Relationship Emotion Timeline & Trigger Graph
View your mood history and emotional distance graph for each specific person. Easily see when you grew closer or drifted apart, and pinpoint the exact interactions that repeatedly drain your energy.
■ AI Relationship Report in Just 3 Entries
Once you log 3 entries for a person, AI generates a structured relationship report—covering relationship score, positive vs. draining interaction patterns, shifting emotional distance, and gentle, actionable steps for healthier boundaries and communication.
■ Discover Yourself in Relationships: AI Persona & Comfort Chat
Why do you shut down around one person yet over-explain to another? Explore your interpersonal persona, recurring defense patterns, and tailored self-care actions. Whenever you need support, start a context-aware AI comfort chat or read practical relationship articles.
■ Home Screen Monthly Mood Calendar Widget
See your month in moods at a glance on your Home Screen. Tap the character calendar widget anytime to jump straight into your daily diary.
■ Private, Transparent & Under Your Control
Manage your account, language preferences, and AI credit history in one secure place, with optional confirmation prompts before using AI credits.
※ Disclaimer
Sai is a non-medical self-care and self-reflection tool for tracking personal notes and interpersonal patterns. AI-generated insights and reports are informational summaries based solely on user entries and do not constitute medical advice, psychological diagnosis, clinical therapy, or professional counseling. If you are experiencing a mental health crisis, please contact a qualified healthcare professional or local emergency support service.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Sai has been updated to make reflecting on your relationships even gentler.
• Answer Article Questions: Share your thoughts and feelings directly on thought-provoking questions in articles.
• Improved Font Readability: Enjoy a clearer and more comfortable reading experience with optimized font sizes.
• Refined Diary List: Browse through your past emotional notes more smoothly with an updated layout.
The developer, HyunJun Moon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- HyunJun Moon
- Size
- 64.4 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 5 more
- English, German, Japanese, Korean, Spanish, Traditional Chinese
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 moonshot
