何日経った？ vs Simple ToDo Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
何日経った？
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登録した出来事から何日経過したかを可視化するシンプルなアプリです。 【機能・特徴】 ・イベント名とアイコンで出来事を追加できます ・経過日数が表示されます ・イベント右上のアイコンをタップすると、編集・削除・経過時間のリセットができます
Simple ToDo Diary
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Simple ToDo Diary is an easy-to-use app for managing daily tasks and notes. You can write quick memos, manage your to-do list, and check off completed tasks. It also works as a light daily diary to record small moments. Designed to be simple, clean, and stress-free for everyday use.
Screenshots
Verdict
The clearest difference is in-app purchases: 何日経った？ at none against Simple ToDo Diary's 1. Simple ToDo Diary's advantage is update cadence (daily vs every 16 months). On price, ads, device support and iOS requirement 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. Simple ToDo Diary sells 1 one-off in-app purchase. 何日経った？ asks for nothing beyond the download.
何日経った？ ships an update every 16 months, Simple ToDo Diary daily. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.
| Parameter | 何日経った？ | Simple ToDo Diary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | KAZUKI KUBO | Kazuya Hashimoto |
In-app purchases
何日経った？
No in-app purchases
Simple ToDo Diary
- 広告を非表示にする$1.99
