---
title: "Penguin Diary :Record & Health — App Overview"
url: https://marlvel.ai/apps/penguin-diary-record-health
category: Health & Fitness
developer: Masao Saeki
platforms: ios
rating: 4.8 (4 ratings)
pricing: free
report_level: overview
generated: 2026-04-30
last_verified: "2026-04-30T10:31:34.875Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This app serves as a reflective tool designed to help users uncover the specific life events and values that correlate with their daily happiness.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Health & Fitness |
| Rating | 4.8 ★ (4) |
| Pricing | free |
| Platforms | iOS |
| Latest Version (iOS) | 7.12.0 |
| Developer | Masao Saeki |

<!-- SECTION: Summary -->
## What is Penguin Diary :Record & Health?

Penguin Diary is a health and fitness journaling tool that allows users to categorize their daily experiences as "maru," "batsu," or "sankaku." The app focuses on self-discovery by helping users identify the specific events and criteria that influence their personal happiness over time.

<!-- SECTION: Key Features -->
## Key Features

- **Daily Rating System**: Users can rate their day using three distinct symbols to track their overall mood and satisfaction.
- **Reason Tracking**: The app allows users to record the reasons behind their daily ratings to identify patterns and associated words.
- **Criteria Analysis**: The app highlights how a user's personal criteria for a good or bad day evolve, facilitating self-reflection.

<!-- SECTION: Target Audience -->
## Who is it for?

Individuals seeking to understand their personal values and improve their consistency in maintaining a daily journaling habit.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/penguin-diary-record-health/id1435000956?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/penguin-diary-record-health)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/penguin-diary-record-health).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*