Itsushita vs When Again?
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Itsushita
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「itsushita(いつした)」は、日々のちょっとした行動を記録し、「最後にいつやったか」を管理するための極めてシンプルなログアプリです。 【こんな悩みはありませんか?】 ・「最後にエアコンのフィルター掃除したのいつだっけ?」 ・「今週、何回ジムに行ったかな?」 ・「この薬、今日もう飲んだっけ?」 itsushitaなら、ワンタップで行動を記録。カレンダー形式で履歴を見返せるので、あなたの生活リズムが一目瞭然です。 【主な機能】 ワンタップ記録: あらかじめ登録したアクションをダッシュボードからタップするだけで記録完了。 カレンダー履歴: いつ、何をしたかがひと目でわかる直感的なカレンダー表示。アイコンで表示されるので視認性も抜群です。 カスタムアクション: 自分だけのアクションを自由に作成。「ポジティブ(習慣にしたいこと)」「ネガティブ(減らしたいこと)」で直感的なアイコン管理が可能です。 継続日数カウント: 「○日連続」表示機能で、習慣化のモチベーションをアップさせます。逆に「○日間やっていない」という確認にも使えます。 プライバシー重視: データは全て端末内に保存されます。誰にも見られない、あなただけのライフログです。
When Again?
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"When did I last do that?" Bike oil changes, haircuts, salon visits, AC cleaning, doctor appointments, pet care — things you do again and again, but once enough time passes, you can't remember when you last did them. When Again? clears up that little everyday question with a single tap. Just log the date. The app automatically counts the days since you last did it, learns your average interval from your own records, and gives you a heads-up when it's about time. ■ Who it's for ・People who forget when their bike or car was last serviced ・Anyone managing regular salon, hair, or nail appointments ・People tracking doctor visits, medication, or health habits ・Anyone who wants to stop thinking "wow, it's already been a while" ・People who want to start right away — no account needed ■ Key features ◎ See the days at a glance Your items line up on the home screen, each with a badge showing how many days since you last did it. What needs doing now is obvious. ◎ "About time" reminders, automatically The app learns your average interval from your records, gathers the items coming due at the top of the home screen, and reminds you with notifications too. ◎ Track anything Use the preset categories or add your own with custom icons and colors. From bike maintenance to beauty to health — manage it all in one app. ◎ Photos, tags, amounts, and notes It's more than a date log. Add up to 5 photos, tags, the amount you spent, and notes to each record — so you can look back on what state it was in last time and how much it cost. ◎ Detailed history and stats The detail screen shows stats like "since last time," "average interval," and totals, plus a month-by-month timeline. ◎ Search Search across notes, tags, and item names to find past records instantly. ◎ Easy backup Save and restore all your records to a file (photos included). CSV export is also supported. ◎ Dark mode Choose system, light, or dark. ■ Privacy first All your records are stored only on your device. No account, no login. We never send your records to a server — so you can start with peace of mind. ■ Pricing The core features are free. Some premium features are available via a one-time in-app purchase. Leave your everyday "when was that again?" to When Again?
Screenshots
Verdict
The clearest difference is in-app purchases: Itsushita at none against When Again?'s 1. Itsushita also leads on ads (none vs shown) and device support (3 vs 1). When Again?'s advantage is update cadence (daily vs weekly). On price 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. When Again? sells 1 one-off in-app purchase. Itsushita asks for nothing beyond the download.
Itsushita ships an update weekly, When Again? daily. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Itsushita | When Again? |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | Daily — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 28 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Yoshiyuki Fukabori | Masamune Hiroiwa |
In-app purchases
Itsushita
No in-app purchases
When Again?
- プレミアム(買い切り)$4.99









