3行日記 vs Three Lines
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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。
Three Lines
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Today, in three lines. Three Lines a Day is for capturing the day's events and thoughts in a few short lines, then looking back on them later from a calendar. Even on a day with no time for a long journal entry, answering three questions of your own choosing is enough to keep its shape. - Record today quickly with three short lines - Change the questions freely — use it for journaling, learning, practice, or family notes - Look back at days written, your current streak, and yourself 7 days ago, 1 month ago, or on this day last year - Browse every day you've written from a monthly calendar - Optionally show that day's calendar events or photos alongside your note - Shows only the locations recorded in your photos — no current location or movement history is collected - Export all your notes as JSON or plain text Your notes and settings stay on your device. No account required.
Screenshots
Verdict
The clearest difference is iOS requirement: Three Lines at 17.0 against 3行日記's 26.2. On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | 3行日記 | Three Lines |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | takuya oku | Naoki Chiba |
In-app purchases
3行日記
No in-app purchases
Three Lines
No in-app purchases








