Breaking Dawn Alarm vs AtCoder Alarm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Breaking Dawn Alarm
Set custom alarms for dawn, sunrise, sunset, and dusk with adjustable offsets and repetition options. Personalize alarm sounds and notification settings. The app uses location services to accurately calculate and update celestial times.
- Alarms for dawn, sunrise, sunset, dusk
- Adjustable time offsets
- Weekly repetition options
- Customizable alarm sounds
- Notification length and count settings
- App icon badge display
- Background time updates
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You can set alarms for dawn, sunrise, sunset, and dusk. Each alarm can have an offset, repetition, label, and sound. Offset allows you to adjust the time when the alarm sounds. I want to wake up by ringing 5 minutes before dawn. I want to ring it 30 minutes before sunset to get ready to go home. I want to ring it 16 hours after sunrise to signal bedtime. You can create alarms such as. You can repeat the alarm by specifying the day of the week. If you select Monday, the alarm will ring at the specified time every Monday. If you select all days of the week, the alarm will ring at the specified time every day. Labels can be used to name each alarm. The type of dawn, offset time, and repetition will be displayed without any special settings. You can select the sound or song for when the alarm sounds. On the sound selection screen, there are items for notification time and number of notifications. The notification time is the time the sound continues to play for up to 30 seconds. You can also set the length of each sound to be between 3 seconds and 30 seconds. If you select a song, it will be fixed at 30 seconds (maximum number of seconds for notification). The number of notifications is the number of times the alarm will be issued, up to 10 times. It can ring for up to 300 seconds with notification time of 30 seconds x number of notifications 10 times. Display the earliest notification time on the app icon badge. *Please allow location information. Uses location information to calculate time. By allowing “always” It is possible to update the time in the background. *Please allow notifications. While the app is in the background Update dawn, sunrise, sunset, and dusk times. *Please leave the app waiting in the background without forcing it to close. In this state, dawn, sunrise, sunset, and sunset times are updated daily. Or by launching the app, those times will also be updated.
AtCoder Alarm
This alarm clock requires users to solve a simple programming problem to turn it off. Problems are randomly selected from past AtCoder "A" tasks. Ensure you wake up on time with this unique challenge.
- Solve programming problems to stop alarm
- Random AtCoder "A" task selection
- Ensures waking up
- Requires AtCoder pre-registration
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This App is an alarm clock that doesn't stop until solving an easy problem of AtCoder (competitive programming web site). The problem is chosen randomly from "A" tasks of past ABCs. Let's make sure to wake up! * Pre-registration with AtCoder is required.
Screenshots
Verdict
The clearest difference is review sentiment: Breaking Dawn Alarm at 67% against AtCoder Alarm's 0%. AtCoder Alarm's advantage is ads (none vs shown) and update cadence (daily vs every 2 months). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Breaking Dawn Alarm ships an update every 2 months, AtCoder Alarm daily. The most recent releases landed on October 11, 2026 and October 15, 2026 respectively.
| Parameter | Breaking Dawn Alarm | AtCoder Alarm |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (4 ratings) — better | — |
| Positive reviews | 66.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.4 | 15.5 — better |
| Further details — not scored | ||
| Size | 99 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | SK | Kiichi Ito |
Customer experience
Breaking Dawn Alarm
AtCoder Alarm
In-app purchases
Breaking Dawn Alarm
No in-app purchases
AtCoder Alarm
No in-app purchases
Questions
Is Breaking Dawn Alarm free?
Is AtCoder Alarm free?
Do Breaking Dawn Alarm or AtCoder Alarm have ads?
Which is updated more often, Breaking Dawn Alarm or AtCoder Alarm?
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