Comparison

Alarm Clock vs AtCoder Alarm

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Alarm Clock

Features
Read full description

Wake up on time everyday with Alarm Clock – Wake Up Time, the perfect solution for your morning wake up call. Set up the time, put it on your nightstand, and get a very loud wake up call the next morning. This app is very useful for everyone and it’s also great to decorate your bedroom. Turn on our alarm clock and put your iPhone or iPad on a nightstand. Our app is FREE, so if you are currently looking for a great and loud Alarm Clock to help you wake up on time everyday, just download and try it!Β  == FEATURES OF ALARM CLOCK – WAKE UP TIME: * A very loud alarm noise to make sure you wake up on time.
 * Beautiful clock display in Analog or Digital Face. 
 * Stunning wallpapers as background for your clock.
 * Show the Time, Date and remaining Battery Life. 
 * Put the clock on your nightstand to decorate your room.
 * Super simple to use with very user-friendly interface. 
 * Customize the Alarm Display with your own picture from the Gallery. 
 * Change Date, Time, or Battery Information Color and photo. 
 If you don’t need the Alarm and you just want to use your iPhone to display beautiful Night Clock Display, you can simply choose the Night Clock Mode. If you need the Alarm feature, use this simple guide below to activate it.Β  How to Use Alarm Clock – Wake Up Time:Β  1. Tap on the Start Alarm Button. 
 2. Tap on the Set Alarm Time to choose the time for the alarm to go off. 
 3. Tap on Start Alarm. 
 4. Choose your preferred Clock Display and Wallpaper
 5. Wait until the Alarm sets off. 
 It’s very important to get up on time every morning so you won’t be late for work or school. We know that ordinary alarm clocks and the standard alarm from iPhone just won’t cut it. It also looks bland, not decorative and stunning as ours. That’s why you should try and download our FREE Alarm Clock and Wake up Time app. If you like it, you can try our paid version that has no ads.Β  SUBSCRIPTION DETAILS All customers are welcome to use free features. If you want to access pro features then we offer 3 auto-renewing subscription options on either a 1, 3 or 12 month basis. Payment will be charged to your credit card through your iTunes account at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours prior to the end of the subscription period. Subscriptions can be managed and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Your account will be charged for renewal within 24-hours prior to the end of the current period, for the price indicated above. Read our terms of use for more information: Terms of Use: https://www.privacypolicies.com/terms/view/68237bda8beeae140d2d63c47874716a If you have any issue with using our app or with your subscription, please feel free to email us.We will get back to you and address the issue as soon as possible. Rate and review our app, please! We are an indie app developer and we need all the support we can get from our users. If you like our app, please recommend Alarm Clock to your friends and family. They can enjoy alarm clock and you will help us grow!

About

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.

Highlights
  • Solve programming problems to stop alarm
  • Random AtCoder "A" task selection
  • Ensures waking up
  • Requires AtCoder pre-registration
Features
Read full description

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

Alarm Clock4 screens
AtCoder Alarm3 screens

Verdict

The call

The clearest difference is in-app purchases: AtCoder Alarm at none against Alarm Clock's 3. AtCoder Alarm also leads on update cadence (daily vs every 6 weeks). Alarm Clock's advantage is iOS requirement (12.0 vs 15.5). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Alarm Clock sells 3 in-app purchases, starting at $2.99 per month. AtCoder Alarm asks for nothing beyond the download.

UpkeepUpdate frequency

Alarm Clock ships an update every 6 weeks, AtCoder Alarm daily. The most recent releases landed on October 27, 2026 and October 15, 2026 respectively.

Scorecard3 real differences Β· 5 level
Alarm Clock versus AtCoder Alarm: the parameters behind the verdict, then further details
ParameterAlarm ClockAtCoder Alarm
PriceFreeFree
Positive reviewsβ€”0.0% of reviews
Update frequencyEvery 6 weeksDaily β€” better
AdsNoNo
In-app purchasesYesNo β€” better
Monetizationβ€”Free
DevicesiPhone, iPad, iPod β€” betteriPhone, iPod
Requires iOS12.0 β€” better15.5
Further details β€” not scored
Size36 MB27 MB
Age rating4+4+
DeveloperAbdulla YasinKiichi Ito

In-app purchases

3 purchases

Alarm Clock

Subscriptions3
  • One Month$2.991 Month
  • Three Month$8.993 Months
  • One Year$17.991 Year
None

AtCoder Alarm

No in-app purchases

Questions

Is Alarm Clock free?
Alarm Clock is free to download, with in-app purchases available.
Is AtCoder Alarm free?
AtCoder Alarm is free to download, with no in-app purchases.
Do Alarm Clock or AtCoder Alarm have ads?
Neither Alarm Clock nor AtCoder Alarm shows ads.
Which is updated more often, Alarm Clock or AtCoder Alarm?
Alarm Clock ships an update every 6 weeks, and AtCoder Alarm daily. Most recently, Alarm Clock was updated on October 27, 2026 and AtCoder Alarm on October 15, 2026.

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