Comparison

MiiBook Journal vs Hidamari

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Instant entry upon opening
  • Calendar reflections
  • AI monthly summaries
  • Dark mode support
  • Reminder notifications
  • Home Widget
  • Local data storage
Read full description

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

About

Hidamari

Features
Read full description

誰かにかけてもらった親切も、あなたが誰かに渡したやさしさも。ほんの小さな出来事を書きとめていくと、あなたとまわりの人たちのあいだに「心の安全基地」——ほっとできる、心のよりどころ——が、少しずつ育っていきます。 そしてその安全基地は、いつもポケットの中にあります。心がゆれた日も、スマホを開けば、あなたを支えてくれる思い出がそこにある。Hidamari は、持ち歩ける小さな居場所です。 ■ こんなことができます ・受け取ったやさしさ/渡したやさしさを記録 ・大切な人を「メンバー」として登録し、相手ごとに振り返り ・月ごとのリフレクションで、その期間のやさしさをふり返る ・写真を添えて、思い出として残す ■ プライバシーを最優先に ・すべてのデータは、あなたの端末の中だけに保存されます ・サーバーへの送信は一切ありません ・アカウント登録・ログインは不要。インストールしてすぐに使えます ・オフラインでも、すべての機能が使えます ■ 広告なし・完全無料 Hidamari は広告を表示せず、機能はすべて無料でお使いいただけます。

Screenshots

MiiBook Journal4 screens
Hidamari4 screens

Verdict

The call

The clearest difference is ads: Hidamari at none against MiiBook Journal's shown. Hidamari also leads on update cadence (weekly vs monthly) and iOS requirement (13.0 vs 15.0). On price, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MiiBook Journal sells 3 in-app purchases, starting at $1.99 per month and Hidamari sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MiiBook Journal ships an update monthly, Hidamari weekly. The most recent releases landed on October 16, 2026 and October 10, 2026 respectively.

Scorecard3 real differences · 7 level
MiiBook Journal versus Hidamari: the parameters behind the verdict, then further details
ParameterMiiBook JournalHidamari
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews62.5% of reviews—
Number of ratings5 — better—
Update frequencyMonthlyWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.0 — better
Further details — not scored
Size153 MB25 MB
Age rating4+4+
DeveloperRyunosuke NagaseDaichi Maruyama

In-app purchases

3 purchases

MiiBook Journal

Subscriptions2
  • PREMIUM - MONTHLY$1.991 Month
  • PREMIUM - ANNUAL14 Days trial$22.991 Year
One-time1
  • PREMIUM - LIFETIME$49.99
3 purchases

Hidamari

One-time3
  • コーヒー1杯ぶんの応援$0.99
  • Hidamariを応援$2.99
  • たっぷり応援$5.99

Questions

Is MiiBook Journal free?
MiiBook Journal is free to download, with in-app purchases available.
Is Hidamari free?
Hidamari is free to download, with in-app purchases available.
Do MiiBook Journal or Hidamari have ads?
MiiBook Journal shows ads; Hidamari does not.
Which is updated more often, MiiBook Journal or Hidamari?
MiiBook Journal ships an update monthly, and Hidamari weekly. Most recently, MiiBook Journal was updated on October 16, 2026 and Hidamari on October 10, 2026.

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