diary.app vs MiiBook Journal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
diary.app
This application allows users to easily record their thoughts and create multiple distinct journals. It offers a straightforward way to document personal reflections and experiences.
- Create posts for thoughts
- Multiple diary creation
- Simple interface
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Simple Diary app. You can simply create posts what you thought. You can create multiple diaries.
MiiBook Journal
This personal diary app offers a clean and engaging interface for easy daily journaling. It allows for quick entries, calendar reflections, and automatic monthly summaries. Prioritizing privacy, all data is stored locally on your device.
- Instant entry upon opening
- Calendar reflections
- AI monthly summaries
- Dark mode support
- Reminder notifications
- Home Widget
- Local data storage
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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
Screenshots
Verdict
The clearest difference is rating: MiiBook Journal at 4.8 against diary.app's 4.3. MiiBook Journal also leads on review sentiment (63% vs 33%). diary.app's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MiiBook Journal sells 3 in-app purchases, starting at $1.99 per month. diary.app asks for nothing beyond the download.
MiiBook Journal holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 33% of diary.app's written reviews are positive against 63% of MiiBook Journal's.
diary.app ships an update daily, MiiBook Journal monthly. The most recent releases landed on September 25, 2026 and October 16, 2026 respectively.
| Parameter | diary.app | MiiBook Journal |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (4 ratings) | 4.8 (5 ratings) — better |
| Positive reviews | 33.3% of reviews | 62.5% of reviews — better |
| Number of ratings | 4 | 5 — better |
| Update frequency | Daily — better | Monthly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 11 MB | 153 MB |
| Age rating | 4+ | 4+ |
| Developer | DRIP PRODUCTS LIMITED LIABILITY CO. | Ryunosuke Nagase |
Customer experience
diary.app
MiiBook Journal
In-app purchases
diary.app
No in-app purchases
MiiBook Journal
- PREMIUM - MONTHLY$1.991 Month
- PREMIUM - ANNUAL14 Days trial$22.991 Year
- PREMIUM - LIFETIME$49.99
Questions
Is diary.app free?
Is MiiBook Journal free?
Which has better reviews, diary.app or MiiBook Journal?
Do diary.app or MiiBook Journal have ads?
Which is updated more often, diary.app or MiiBook Journal?
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