Positive Journal vs 3行日記
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Positive Journal
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Layer Diary is a journaling app designed to make the "3-Line Positive Journal" a daily digital habit. Writing three positive lines each night builds resilience — the ability to bounce back from stress, setbacks, and hard days with greater ease. The rule is simple. Before bed, write down three good things that happened today. Your brain encodes memories most powerfully in the 15 minutes before sleep. Fill that window with something good, and your mind consolidates the whole day as a positive one. No negatives. No pressure. Small things count — "The weather was beautiful" or "My evening walk felt great" is enough. Keep it up, and gratitude stops feeling like a practice. It starts feeling like you. Your past, quietly layering beneath you Every entry adds a new layer. Tap any date and look back at the same day last year, the same day last month, the same weekday last week — all stacked and scrollable. You'll see, in one glance, how far you've come. A built-in daily reminder helps you make this a non-negotiable part of your night routine. Your thoughts, protected Face ID lock. Automatic iCloud sync. Plain text export. Your words, guarded quietly — always there when you need them. Three lines tonight. A better you, eventually.
3行日記
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3行日記 - シンプル日記は、今日の出来事や気づきを3行だけで残すためのシンプルな日記アプリです。 長い文章を書こうとすると続かない。 でも、1日を少しだけ振り返る時間は残したい。 そんなときに、3つの入力欄へ短く記録できます。 主な機能 ・今日の3行日記を記録 ・入力内容の自動保存 ・過去の日記を履歴で確認 ・過去の日記の編集 ・投稿前の内容確認 ・XやiOS標準共有への共有 日記の内容は端末内に保存されます。 アカウント登録なしで、すぐに使い始められます。 毎日の記録、ちょっとした振り返り、SNS投稿前の下書きメモとしてご利用ください。
Screenshots
Verdict
Positive Journal and 3行日記 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Positive Journal | 3行日記 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days | — |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 26.2 | 26.2 |
| Further details — not scored | ||
| Size | 1 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | PIN STUDIO | takuya oku |
In-app purchases
Positive Journal
No in-app purchases
3行日記
No in-app purchases





