AtCoder Alarm vs Loud Alarm Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
Loud Alarm Clock
This alarm clock prevents snoozing by requiring users to complete a morning mission. It also encourages better sleep habits with guided wind-down sessions and tracks sleep patterns to help users establish a consistent schedule.
- Mission-based alarm deactivation
- Guided wind-down sessions
- Sleep tracking and analysis
- Customizable alarm sounds and themes
- Streak and badge rewards
- Light and dark themes
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OwlRoutine is the loud alarm clock you can't snooze, and it helps you sleep better too. Wind down at night, solve a quick mission in the morning, and actually get out of bed on time. Most alarm apps are easy to silence. OwlRoutine isn't. To turn off your wake up call you have to finish a wake-up mission. No mindless snoozing, no drifting back to sleep, no oversleeping. Here's what makes OwlRoutine different: your night decides how hard your morning is. Wind down calmly before bed and you earn an easy mission. Skip your wind-down and you'll face a harder one. Your bedtime and your wake-up are finally connected. WIND DOWN AT NIGHT • Start a guided wind-down session before bed • Block distracting apps while you wind down • Put your phone face-down and OwlRoutine detects it • Check off a bedtime ritual: read, journal, stretch, meditate, no screens • A calmer night earns you an easier wake-up WAKE UP WITH A MISSION • Pick your challenge: math, word, typing puzzle or bed-photo match • Solve it to silence the alarm. No shortcuts. • Snap a photo of a spot in your room to prove you're out of bed • Mission difficulty depends on how well you wound down A REAL ALARM CLOCK • Reliable alarms that ring even on silent (iOS 26+ AlarmKit) • Themed alarms with custom sounds and ring-screen backgrounds • Snooze settings and repeat schedules for each alarm • Built for heavy sleepers and chronic snoozers UNDERSTAND YOUR SLEEP • Sleep analytics: average sleep, bedtime and regularity • See your 7-night sleep pattern at a glance • Reads your sleep data from Apple Health • Daily sleep score and morning report • Monthly heatmap report of your streaks and consistency • See how your wind-down habits shape your wake-ups MAKE IT YOURS • Earn coins and unlock avatars in the shop • Collect badges as your streak grows • A calm night palette with your owl companion • Light (Dawn) and dark (Midnight) themes WHO IT'S FOR Heavy sleepers who sleep through a gentle alarm. Snoozers who hit the button five times. Night owls trying to fix their sleep schedule. Anyone who wants a morning routine that finally sticks. Whether you want to stop hitting snooze, wake up on time or build better bedtime habits, OwlRoutine turns waking up into something you can win. Sleep with intention. Wake up unstoppable. Download OwlRoutine and beat your alarm tomorrow morning. Privacy Policy - https://owlroutine.mcdevlabs.com/privacy Terms of Use - https://owlroutine.mcdevlabs.com/terms
Screenshots
Verdict
The clearest difference is in-app purchases: AtCoder Alarm at none against Loud Alarm Clock's 5. AtCoder Alarm also leads on update cadence (daily vs fortnightly). On price, ads, device support and iOS requirement 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. Loud Alarm Clock sells 5 in-app purchases, starting at $3.99 per 7 days. AtCoder Alarm asks for nothing beyond the download.
AtCoder Alarm ships an update daily, Loud Alarm Clock fortnightly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | AtCoder Alarm | Loud Alarm Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 3 — better |
| Update frequency | Daily — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.5 — better | 16.0 |
| Further details — not scored | ||
| Size | 27 MB | 122 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiichi Ito | MARIN CAPRANOV |
Customer experience
AtCoder Alarm
Loud Alarm Clock
In-app purchases
AtCoder Alarm
No in-app purchases
Loud Alarm Clock
- Pro Weekly$3.997 Days
- OwlRoutine Pro Monthly$7.991 Month
- Pro Yearly$19.991 Year
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- OwlRoutine Pro Yearly7 Days trial$39.991 Year
- OwlRoutine Pro Lifetime$49.99









