Piary vs おとなの日記帳
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Piary
Combine photos and journal entries to create a visual diary of your daily life. See your memories fill a calendar with personalized backgrounds. A simple way to document your experiences.
- Photo and diary entries
- Calendar view of memories
- Customizable calendar background
- Daily recording
- Personalized memory calendar
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Picture × Diary = Piary! Piary is an application like a picture diary that can record events of the day in photos and diaries. Since registered pictures are displayed in the list in the calendar, if you record every day, the calendar will be filled with more and more photos. You can change the background of the calendar to your favorite picture. Record every day and make your own my calendar!
おとなの日記帳
A simple and stylish diary app that allows you to attach unlimited photos. Easily write long entries with a convenient keyboard and attach multiple photos at once. Secure your memories with a passcode lock.
- Unlimited photo attachments
- Batch photo selection
- Camera integration
- Long text entry support
- Multiple entries per day
- Passcode lock
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◉このアプリについて おとなの日記帳は写真も貼れるシンプルで軽量な日記アプリです。 数ある日記アプリの中でも一番使いやすくおしゃれなアプリかもしれません。 ◉こだわり - 写真の添付枚数は無制限 - 写真は一括選択して添付できる - カメラ撮影して添付できる - 便利なキーボードのおかげで長文もスラスラ書ける - 1日あたり何個でも日記を書ける - パスコードロック機能あり
Screenshots
Verdict
The clearest difference is rating: Piary at 5.0 against おとなの日記帳's 4.6. おとなの日記帳's advantage is review sentiment (85% vs 75%) and ratings volume (21 vs 6). On price, update cadence, ads and in-app purchases 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. Piary sells 1 one-off in-app purchase and おとなの日記帳 sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Piary holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 6 and 21 respectively. Written reviews complicate that: 75% of Piary's written reviews are positive against 85% of おとなの日記帳's, so the app with the better star average is not the one people write more warmly about.
Piary ships an update every 3 weeks, おとなの日記帳 monthly. The most recent releases landed on June 1, 2026 and September 19, 2026 respectively.
| Parameter | Piary | おとなの日記帳 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (6 ratings) — better | 4.6 (21 ratings) |
| Positive reviews | 75.0% of reviews | 85.0% of reviews — better |
| Number of ratings | 6 | 21 — better |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 — better | 17 |
| Further details — not scored | ||
| Size | 64 MB | 32 MB |
| Age rating | 4+ | 4+ |
| Developer | Haruki Saburi | Masaki Hirano |
Customer experience
Piary
おとなの日記帳
In-app purchases
Piary
- Remove Ads$1.99
おとなの日記帳
- 広告非表示機能$2.99
- バックアップ復元機能の開放$2.99
