MiiBook Journal: Private Diary
A timeless journal for life.
Free · In‑App Purchases
MiiBook is your simple, personal diary app. We've made a conscious effort to provide a clean, engaging design that you won't tire of.
Operation is easy, with no account registration required. Simply install the app and start using it immediately.
【Features】
・Write a quick line or take your time
・Instant entry upon opening the app
・Easy reflections via calendar
・Switch calendar views by month
・Dark mode compatible
・Never forget to log with reminder notifications
・Only you have access to your data
・Home Widget
・AI automatically generates monthly summaries!
■ Write a quick line or take your time
On busy days, jot down a single line. When you have time, write in detail. With the freedom to match your mood, keeping a daily diary is easier than ever.
■ Instant entry upon opening the app
MiiBook is committed to a user-friendly experience. Tap the blank date field from the home screen and the keyboard appears for immediate input.
■ Easy reflections via calendar
You can reflect on your diary entries in a calendar format. Reviewing past entries can help you recognize your personal growth and emotional changes.
■ Switch calendar views by month
Simply swipe left or right to review your past records.
■ Dark mode compatible
The app is friendly on the eyes and also supports dark mode. The theme switches according to your device settings. Enjoy the app in your favorite theme.
■ Never forget to log with reminder notifications
Of course, reminder notifications are also supported. We support the habit of daily journaling with daily notifications. You can also turn off notifications.
■ Only you have access to your data
Your journal entries are stored only on your device. Therefore, you can comfortably record your thoughts and feelings.
【Recommended for those who】
・Felt other diary apps were complicated with unnecessary features.
・Want to use a simple diary app.
・Desire a diary app that they won't tire of.
・Prefer an app that allows quick and easy entries.
・Prioritize privacy and want their data stored only on their device.
Terms of Use: https://tinylab-apps.web.app/TermsOfService/ja.html
Privacy Policy: https://tinylab-apps.web.app/PrivacyPolicy/ja.html
Ratings & Reviews
- Added new home screen widgets!
- Bug fixes and performance improvements.
The developer, Ryunosuke Nagase, 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:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Ryunosuke Nagase
- Size
- 155.8 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later.
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- PREMIUM - ANNUAL $22.99
- PREMIUM - LIFETIME $49.99
- PREMIUM - MONTHLY $1.99
- Copyright
- © Ryunosuke Nagase