Comparison

ReLi カテゴリーごとにタスクを管理 vs When Again?

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

ReLi カテゴリーごとにタスクを管理

Features
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やること、もう忘れない。振り返る、ReLiと。 ReLiは、シンプルで使いやすいチェックリスト&タスク管理アプリです。 仕事、プライベート、趣味…すべての予定・やることをひとつにまとめ、見やすく管理できます。 バージョン2.0でアプリを一から作り直し、動作がより速く、デザインもより洗練されました。 主な機能 • カテゴリー & プロジェクト管理:自由な分類で整理整頓 • 開始日・期限日設定:スケジュールを見える化 • リマインダー通知:やり忘れを防止 • カレンダービュー:タスクを日付ごとに色分け表示 • タグ & 検索:タスクを横断して整理・すぐに見つける • メモ & 画像添付:タスクに詳しいメモや写真を残せる • テーマカラー & ダークモード:見た目を自分好みに • ドラッグ&ドロップ並び替え:直感的な操作 • 多言語対応:日本語・英語など15言語 • クラウド同期:デバイス(3端末まで)でデータ共有 無料プランから始められ、プレミアムプランにアップグレードすると広告非表示&タスク・カテゴリー上限が拡大します。 あなたの毎日をもっとスマートに、ReLiと。 利用規約: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://reva-company.github.io/

About

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

ReLi カテゴリーごとにタスクを管理4 screens
When Again?4 screens

Verdict

The call

The clearest difference is update cadence: When Again? at daily against ReLi カテゴリーごとにタスクを管理's every 3 days. When Again? also leads on iOS requirement (16.4 vs 18.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ReLi カテゴリーごとにタスクを管理 sells 4 in-app purchases, starting at $0.99 per month and When Again? sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ReLi カテゴリーごとにタスクを管理 ships an update every 3 days, When Again? daily. The most recent releases landed on October 25, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 4 level
ReLi カテゴリーごとにタスクを管理 versus When Again?: the parameters behind the verdict, then further details
ParameterReLi カテゴリーごとにタスクを管理When Again?
PriceFreeFree
Update frequencyEvery 3 daysDaily — better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS18.016.4 — better
Further details — not scored
Size76 MB59 MB
Age rating4+4+
Developerryuu harumichiMasamune Hiroiwa

In-app purchases

4 purchases

ReLi カテゴリーごとにタスクを管理

Subscriptions4
  • Lite Plan (Monthly)$0.991 Month
  • Pro Plan (Monthly)$1.991 Month
  • Lite Plan (Yearly)$11.991 Year
Show 1 more
  • Pro Plan (Yearly)$19.991 Year
1 purchases

When Again?

One-time1
  • プレミアム(買い切り)$4.99

Questions

Is ReLi カテゴリーごとにタスクを管理 free?
ReLi カテゴリーごとにタスクを管理 is free to download, with in-app purchases available.
Is When Again? free?
When Again? is free to download, with in-app purchases available.
Do ReLi カテゴリーごとにタスクを管理 or When Again? have ads?
Both ReLi カテゴリーごとにタスクを管理 and When Again? show ads.
Which is updated more often, ReLi カテゴリーごとにタスクを管理 or When Again??
ReLi カテゴリーごとにタスクを管理 ships an update every 3 days, and When Again? daily. Most recently, ReLi カテゴリーごとにタスクを管理 was updated on October 25, 2026 and When Again? on October 8, 2026.

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