3-Choice Journal: Self-Care
AI Psychology & Self-Discovery
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Mental Habits to Increase Your Good Days
Just 3 seconds a day. Simply choose between "Good day," "Okay," or "Bad day" — and watch your good days naturally multiply. Why? Because happiness isn't about what happens — it's about how you see it. 3-Choice Diary uses AI and psychology to refine your cognitive filter, helping you feel happier in your everyday life.
The Science Behind 3-Choice Diary
Designed to be effortlessly simple — even for those who never stick with habits. From your daily 3-choice entries, AI analyzes your values (10 types), strengths (24 categories), and personality (Big Five traits). Discover your personal formula for creating good days, backed by science. Track your cognitive growth through daily, weekly, and monthly reports.
Why 3 Choices Create Real Change
Even with similar routines, some people experience far more "good days" than others. The difference? Their cognitive filter — how they perceive things. 3-Choice Diary analyzes your patterns to uncover your unique rules: "Morning exercise makes you feel fulfilled" or "Days with more autonomy boost your happiness." With personalized action suggestions, you'll create more good days.
Key Features
① 3-Second Emotion Logging
3 choices: The optimal number for quick, easy decisions (backed by neuroscience)
Optional details: Write more when you feel like it
Built for habit formation: Simple enough to actually stick with
② Science-Based Self-Analysis Engine
Cognitive filter assessment: Understand why you feel happy or unhappy
Values analysis: Quantify your 10 core values using Schwartz theory
Strengths discovery: Visualize your talents across VIA's 24 character strengths
Personality insights: Understand your behavioral patterns through Big Five
③ AI Reports That Accelerate Growth
Daily: Reflect on today, get actionable advice for tomorrow
Weekly: Track changes in cognitive patterns and improvement areas
Monthly: Deep self-understanding integrating values, strengths, and personality
④ Three Support Modes
Gentle & Supportive: Emotional comfort during tough times
Reflective Partner: Fresh perspectives that spark insights
Action Catalyst: Concrete suggestions to accelerate growth
What Makes Us Different
Unlike CBT apps that focus on "fixing problems," 3-Choice Diary uses positive psychology to "increase good days." We focus on growth, not treatment. And if journaling never sticks for you, the 3-choice format makes it effortless to continue.
Perfect For You If...
You feel like "good days" have been rare lately
Traditional journaling never lasts more than 3 days
You want to scientifically understand your values and strengths
You're ready to transform your routine
You want to cultivate your capacity for happiness
You'd like to improve your cognitive patterns
You're searching for your personal success formula
Why It's Easy to Continue
3 seconds: The fastest emotion logging possible
No overthinking: 3 choices is the sweet spot
Zero guilt: On busy days, just pick one choice — done
Ad-free: Distraction-free experience
$4.99/month: Affordable self-improvement
Scientific Foundation
Positive psychology research proves that happiness depends more on cognition (how we perceive things) than circumstances. 3-Choice Diary helps you refine this cognition, so you can feel happier in the same everyday life.
Safe & Secure
Designed based on psychological theory
Privacy protection is our top priority
This is not medical treatment
Why Start Today?
Three seconds a day will steadily transform your cognitive filter. Try the 3-choice habit for just 7 days. By next week, you'll find yourself looking forward to counting your good days.
Download free and take the first step toward more good days.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Look back on each day more easily with the all-new Timeline.
・Introducing the Timeline
See your diary entries and AI reports together in chronological order—reflect the moment you open the app.
・Jot things down with chat input
Quickly capture whatever comes to mind from the input bar at the bottom of the screen.
・Monthly mark summary bar
As you scroll, see the trend of your three-choice marks for each month at a glance.
・Choose your report's tone
You can now change the tone of your AI reports from Settings.
・Added a self-introduction step for new users
Plus minor improvements and bug fixes.
The developer, Masao Saeki, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
- Identifiers
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Masao Saeki
- Size
- 143.8 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 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 4 more
- English, Japanese, Korean, Simplified Chinese, Traditional Chinese
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- プレミアムプラン年額 $39.99
- Monthly Subscription $3.99
- Copyright
- © Masao Saeki