Dawn Alarm vs シンプル時報
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dawn Alarm
Wake up with the natural rhythm of daylight. This alarm app notifies you of dawn, sunrise, sunset, and dusk times for your location. It's ideal for those who want to align activities with natural light cycles.
- Dawn, sunrise, sunset, dusk notifications
- Location-based timing
- Major city timing lookup
- Offline access to timing
- Customizable dawn/dusk definitions
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This app serves as an alarm that provides notifications at dawn, sunrise, sunset, and dusk. If you wish to commence activities shortly after sunrise, this app is an excellent choice. It offers the capability to determine the timing of sunrise, sunset, dawn, and dusk for your current location and major cities instantly. Moreover, you can access this information even if you haven’t allowed local notifications. The app employs Japanese definitions for dawn and dusk, which were established by a samurai during the shogunate era, although they closely resemble civil twilight. Civil twilight commences and concludes when the sun’s geometric center is 6° below the horizon. In contrast, dawn starts and dusk ends when the sun’s geometric center is 7.3611° below the horizon. Enabling the civil twilight option will make the dawn and dusk correspond to civil dawn and civil dusk. ■ Liability Disclaimer ASTI disclaims all liability for any consequences arising from the use of the app. We accept no responsibility for any damages, injuries, or losses resulting from app usage.
シンプル時報
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「シンプル時報」は、美しさと機能性を兼ね備えた時報アプリです。 時間を大切にするすべての人のために、直感的な操作と洗練されたデザインで作りました。毎時の合図はもちろん、15分ごとのポモドーロ・テクニックや、特定の時間割に合わせた通知など、あなたのライフスタイルに合わせて自由にカスタマイズできます。 【主な機能】 自由なタイミング設定: 毎時0分だけでなく、5分単位で好きな時間に時報を鳴らせます。「10分ごと」「15分ごと」などの一括設定もワンタップで。 マイセット機能: 「仕事用」「休日用」「集中モード」など、設定した時間の組み合わせを保存して、すぐに切り替えられます。 選べる通知音: デフォルト音に加え、優しい「ベル」や「チャイム」など、心地よいサウンドを用意しました。 美しいデザイン: 時間帯やテーマカラーに合わせて変化する背景グラデーション。ミニマルなデザインで、置き時計としても美しく機能します。 常時表示モード: アプリを開いたまま、美しいデジタル・アナログ時計としてデスクに置いておけます。 直感的な操作: 時計の周りのボタンをタップするだけの簡単設定。 【こんな方におすすめ】 集中力を維持したい、ポモドーロ・テクニックを実践している方 規則正しい生活を送りたい方 会議や作業の終了時間を意識したい方 シンプルで美しい時計アプリを探している方 あなたの時間を、もっと美しく管理しましょう。 キーワード 時報,時計,アラーム,リマインダー,ポモドーロ,集中,時間管理,チャイム,スケジュール,シンプル "Simple Time Signal" is an hourly chime app designed for beauty and functionality. Built for everyone who values their time, it combines intuitive controls with a sophisticated design. Whether you need a simple hourly reminder, a 15-minute Pomodoro timer, or a custom schedule for your daily routine, this app adapts to your lifestyle. 【Key Features】 Flexible Scheduling: Set chimes not just for the hour (00), but for any 5-minute interval. Quickly select "Every 10 min" or "Every 15 min" with a single tap. My Sets: Save your favorite time combinations as "Work", "Weekend", or "Focus Mode" and switch between them instantly. Custom Sounds: Choose from pleasant sounds including "Default", "Bell", and "Chime" to suit your environment. Beautiful Design: Features a minimalist interface with background gradients that adapt to your theme. It looks stunning as a desk clock. Always On Display: Keep the app open to use as a stylish digital and analog clock on your desk. Intuitive Controls: Set your chimes simply by tapping the minute markers around the clock face. 【Perfect For】 Productivity enthusiasts practicing the Pomodoro Technique. Anyone wanting to maintain a structured daily routine. Keeping track of meeting times and work intervals. Those looking for a clean, aesthetic clock app. Manage your time beautifully with Simple Time Signal. Keywords Time Signal,Chime,Clock,Alarm,Reminder,Pomodoro,Focus,Hourly,Schedule,Minimalist
Screenshots
Verdict
The clearest difference is in-app purchases: シンプル時報 at none against Dawn Alarm's 1. シンプル時報 also leads on ads (none vs shown). Dawn Alarm's advantage is update cadence (every 4 months vs every 9 months) and iOS requirement (15.0 vs 18.2). On price 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. Dawn Alarm sells 1 one-off in-app purchase. シンプル時報 asks for nothing beyond the download.
Dawn Alarm ships an update every 4 months, シンプル時報 every 9 months. The most recent releases landed on November 6, 2026 and October 28, 2026 respectively.
| Parameter | Dawn Alarm | シンプル時報 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (26 ratings) — better | — |
| Positive reviews | 65.4% of reviews | — |
| Number of ratings | 26 — better | — |
| Update frequency | Every 4 months — better | Every 9 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 14 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | Takafumi AMANO | naoya takamura |
In-app purchases
Dawn Alarm
- Remove Ads$1.99
シンプル時報
No in-app purchases









