Hachabi vs 何日経った？
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hachabi
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Hachabi helps you build lasting habits. It uses IF-THEN Planning — a technique that links a new habit to something you already do. "IF I wake up, THEN I read." Just set a trigger. That's all it takes. Start today.
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
Screenshots
Verdict
The clearest difference is ads: 何日経った？ at none against Hachabi's shown. Hachabi's advantage is update cadence (every 5 weeks vs every 16 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
Hachabi ships an update every 5 weeks, 何日経った？ every 16 months. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.
| Parameter | Hachabi | 何日経った？ |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 weeks — better | Every 16 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 18.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiroki Konno | KAZUKI KUBO |
In-app purchases
Hachabi
No in-app purchases
何日経った？
No in-app purchases
