# Dawn Alarm — Life Rhythm under Sunlight

> Natural light cycle alarm and timing information. (iPhone/iPad app by Takafumi AMANO.)

- Source: https://appshunter.io/ios/app/dawn-alarm/id963699059 (this page in markdown: same URL + `.md`)
- Developer: [Takafumi AMANO](https://appshunter.io/developer/581065340)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Rating: 4.24/5 from 25 App Store ratings · 52 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 14 MB
- Languages: English, Japanese
- Released: 2015-02-18
- Data updated: 2026-09-02
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/dawn-alarm/id963699059/reviews.md

## What is Dawn Alarm?

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.

## Key features

- Dawn, sunrise, sunset, dusk notifications
- Location-based timing
- Major city timing lookup
- Offline access to timing
- Customizable dawn/dusk definitions

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Recent user reviews (10 of 52)

All indexed reviews: https://appshunter.io/ios/app/dawn-alarm/id963699059/reviews.md

### 5/5 — Lovely

*2026-06-22, version 1.7.1*

Simple, Elegant

### 3/5 — Trying to make it work

*2026-04-01, version 1.6.2*

I’m excited to use this but I’m not getting the alarm to sound in the mornings. I have it set in notifications. Is there a setting I am missing? Mr. Developer, please help!  :)

### 3/5 — 鳴りません

*2026-01-31, version 1.6.2*

特に夜明け日の出が鳴りません。鳴らすためにはその時間の前にアプリを起動する必要があるようです。
これでは使いものになりません。他のアプリも併用していますがそちらは必ず鳴ります。ただ起動しておかないと再計算されず時間は更新されませんが。
さらに鳴らせる音をこちらで用意したものに指定できるようになれば最高です。

### 2/5 — It does what it says on the box.

*2025-04-23, version 1.6.2*

But someone forgot to include a repeating alarm option.

### 5/5 — Dependable and kept simple

*2024-11-02, version 1.6.2*

Yes

### 5/5 — THE ALARM SOUND (updated rating and added answer)

*2024-06-11, version 1.6*

"Tap the text of Dawn/Sunrise/Sunset/Dusk to display a setting screen and select the desired alarm sound." Now it is a perfect 5* app! Support answered my email super fast! I LOVE THIS APP BUT OH MY GOD THE LOUD SIREN ALARM IS BAD! Can it be changed? Am I missing something?

### 4/5 — THE ALARM SOUND

*2024-06-06*

I LOVE THIS APP BUT OH MY GOD THE LOUD SIREN ALARM IS BAD! Can it be changed? Am I missing something?

### 5/5 — Lovely

*2024-05-21, version 1.6*

Simple, Elegant

### 1/5 — 朝から恐ろしい音が鳴る

*2024-02-11, version 1.6*

レビューを見て音の種類が選べるか見てみたがそんな項目は見当たりません。

### 5/5 — Perfect

*2023-12-20, version 1.6*

I love this app. 
My chickens love it, too!

It gets me up at sunrise every morning and tells me when to shut the coop all the while changing daily with the time. 
And it even does Daylight Savings Time changes!

A friend would like to know if you are planning an
Android version. 

Good job!!

## Frequently asked questions about Dawn Alarm

### What does the Dawn Alarm app do?

This app functions as an alarm that provides notifications for key daylight events: dawn, sunrise, sunset, and dusk. It's designed to help users align their activities with natural light patterns, especially for those who wish to start their day around sunrise.

### How does the app determine dawn and dusk times?

The app calculates dawn and dusk times based on your current location or major cities. It uses specific astronomical definitions, with an option to enable civil twilight for times that closely align with civil dawn and civil dusk.

### Can I access timing information without an internet connection?

Yes, you can access the timing information for dawn, sunrise, sunset, and dusk even if you haven't granted local notification permissions or if you are offline.

### Is the app free to use?

The app is free to download and use, but it does offer in-app purchases. This suggests that some features or content might be unlocked or enhanced through these purchases.

### Who would benefit from using this app?

This app is ideal for individuals who want to be more in tune with natural light cycles. This includes early risers, photographers, outdoor enthusiasts, or anyone who wants to optimize their schedule around daylight hours.

## Version history (last 5 releases)

### 1.7.1 — 2026-04-13

- Fixed bugs.

### 1.7 — 2026-04-02

- Supported iOS 26.
- Added culmination alarms.

### 1.6.2 — 2024-10-03

- Supported iOS 18.

### 1.6.1 — 2024-07-26

- Added blue hour times.

### 1.6 — 2023-10-26

- Supported iOS 17.
- Added a culmination time display function.
- Added a location update function.
- Improved user interface.

## Apps similar to Dawn Alarm

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [World Clock - Wake Up Alarm](https://appshunter.io/ios/app/world-clock-wake-up-alarm/id1636448532) | 4.3 (631) | Free | Lifestyle |
| [Breaking Dawn Alarm](https://appshunter.io/ios/app/breaking-dawn-alarm/id1536097037) | 3.5 (4) | Free | Lifestyle |
| [MeetTheSun](https://appshunter.io/ios/app/meetthesun/id1499809568) | — | $0.99 | Lifestyle |
| [Light Alarm — Wake-Up Light](https://appshunter.io/ios/app/light-alarm-wake-up-light/id1551202072) | 3.5 (73) | Free | Lifestyle |
| [Alarm - Smart Clock Alarmify](https://appshunter.io/ios/app/alarm-smart-clock-alarmify/id1606167018) | 4.5 (106) | Free | Lifestyle |
| [Alarmie: Easy Rise Alarm Clock](https://appshunter.io/ios/app/alarmie-easy-rise-alarm-clock/id1524736261) | 4.4 (217) | Free | Lifestyle |

## More apps by Takafumi AMANO

- [Pace Ruler](https://appshunter.io/ios/app/pace-ruler/id588276050)
- [Voice Over Clock](https://appshunter.io/ios/app/voice-over-clock/id594106139)
- [Altitude Checker](https://appshunter.io/ios/app/altitude-checker/id635168846)
- [Voice Over Timer](https://appshunter.io/ios/app/voice-over-timer/id645775661)
- [Audio Break-in](https://appshunter.io/ios/app/audio-break-in/id651915930)
- [Flood Checker Kansai Japan](https://appshunter.io/ios/app/flood-checker-kansai-japan/id741909947)

All apps by Takafumi AMANO: https://appshunter.io/developer/581065340

## Related topics

[twilight alarm](https://appshunter.io/ios/topics/twilight-alarm) · [sunset alarm](https://appshunter.io/ios/topics/sunset-alarm) · [ten minutes till dawn](https://appshunter.io/ios/topics/ten-minutes-till-dawn) · [sunrise sunset alarm](https://appshunter.io/ios/topics/sunrise-sunset-alarm) · [10 minutes until dawn](https://appshunter.io/ios/topics/10-minutes-until-dawn) · [20 minutes till dawn](https://appshunter.io/ios/topics/20-minutes-till-dawn)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*