アレなんだっけ? vs meloClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
アレなんだっけ?
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「令和って西暦何年?」「来年の干支は?」「11月って英語でなんて言うんだっけ?」 そんな日常のちょっとした疑問を、これひとつで解決。 7つの機能を詰め込んだ、日本の暦・文化ツール集です。 西暦・和暦変換 令和・平成・昭和・大正・明治に対応。 西暦から和暦、和暦から西暦を簡単に変換できます。 単位変換(m2・畳・坪) 江戸間・京間・中京間・団地間の4種類の畳サイズに対応。 不動産物件を見る時にも便利です。 干支 今年の干支をすぐ確認。 12の干支をタップすると、該当する年を一覧表示します。 月の名前 1月から12月の和風月名(睦月・如月・弥生)と 英語名(January・February)、読み方を確認できます。 星座 誕生日から星座を確認。 12星座それぞれのギリシャ神話の由来も掲載。 今日の花と花言葉 カレンダーから日付を選ぶと、その日の誕生花と花言葉を表示。 大切な日の花言葉を調べるのにも便利です。 今日は何の日? 365日分の記念日・歴史的な出来事を収録。 毎日新しい発見があります。 ウィジェット対応 ホーム画面・ロック画面のウィジェットにお好みの情報を表示できます。 6種類の情報から0から2個を自由に選択。 完全無料・全機能オフライン対応。 掲載している花言葉・記念日情報は諸説あるうちの一例です。 正確性を保証するものではありません。
meloClock
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This is what 15:35 sounds like. meloClock is a digital clock that turns the digits of the current time into scale degrees, staff notation, and melody. With practice, you may even recognize the current time just by listening. Tap the digits or notes, and the clock becomes a small instrument. Use everyday glances at the time as a playful part of ear training. Using meloClock as a clock is completely free, with no ads. For those who want to explore ear training and customization further, meloClock Pro is also available. ■ A clock for your everyday space ・A large digital clock designed for landscape display ・Optional date, weekday, and staff notation ・Customizable fonts, weights, and display styles ・Available on iPhone, iPad, and Mac ■ Hear and play the time ・See the current time as notes on a staff ・Play the time as a melodic chime ・Tap the time, date, or notes to make music ・Repeat melody chimes at your chosen interval ■ For ear training, too Play while watching how digits, scale degrees, and notes correspond, or listen while following the melody on the staff. meloClock is useful as a clock and enjoyable as a small musical instrument. ■ meloClock Pro An optional upgrade for exploring ear training and customization further. With the same Apple Account, one subscription unlocks Pro on iPhone, iPad, and Mac. meloClock has no ads and does not collect usage data. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: アレなんだっけ? at none against meloClock's 2. アレなんだっけ? also leads on iOS requirement (18.6 vs 26.0). meloClock's advantage is ads (none vs shown). On price, update cadence 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. meloClock sells 2 in-app purchases, starting at $1.49 per month. アレなんだっけ? asks for nothing beyond the download.
アレなんだっけ? ships an update every 4 days, meloClock every 5 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | アレなんだっけ? | meloClock |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 days — better | Every 5 days |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, Mac — better |
| Requires iOS | 18.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 6 MB | 123 MB |
| Age rating | 4+ | 4+ |
| Developer | NANACHANLAB | Yuichi Sato |
In-app purchases
アレなんだっけ?
No in-app purchases
meloClock
- meloClock Pro Monthly$1.491 Month
- meloClock Pro Yearly$14.991 Year









