Comparison

AtCoder Alarm vs Lofi Alarm Clock

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

Head to head
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.

About

Lofi Alarm Clock

Wake up gently with a vast library of soothing Lofi music. Customize your alarms with a shuffle feature and personalized playlists for a tranquil start to your day. This free app offers a user-friendly interface for a seamless morning experience.

Highlights
  • Expansive Lofi library
  • Shuffle alarm tracks
  • Personalized playlists
  • Customizable alarm settings
  • Mobile clock flexibility
  • User-friendly interface
Features
Read full description

Start your mornings on a harmonious note with Lofi Alarm Clock, the ultimate free alarm clock app and timer designed to awaken you with soothing Lofi tunes. Featuring over 100 unique tracks, our expansive library ensures every morning feels fresh and tranquil. Features: Expansive Lofi Library: Enjoy calming alarms from a rich selection of over 100 Lofi tracks across various categories. Whether you need a gentle wake-up call or a vibrant start, our music has you covered. Shuffle Alarm Tracks: With our unique shuffle feature, experience a different tune each morning. Say goodbye to repetitive alarms and embrace a refreshing start every day. Ideal for iPhone users looking for a versatile timer. Personalized Playlists: Wake up to a curated selection of songs tailored to your preferences. Perfect for those seeking variety and personalization in a gentle alarm clock app. Customizable Alarm Settings: Customize your alarm settings to enhance your wake-up experience. Adjust the digital clock settings to suit your needs and preferences. Mobile Clock Flexibility: Use Lofi Alarm Clock as your primary mobile clock app, taking advantage of its extensive features and customization options. Easy to Use: Our user-friendly interface ensures a seamless experience, making it the perfect choice for anyone looking for an efficient and reliable alarm clock app that plays Lofi music. Download Lofi Alarm Clock now and redefine your mornings with the soothing rhythm of Lofi music. Set the perfect alarm and start your day right. By downloading this app, you agree to Apple's Standard End User License Agreement (EULA). For more details, please visit: Apple EULA

Screenshots

AtCoder Alarm3 screens
Lofi Alarm Clock3 screens

Verdict

The call

The clearest difference is review sentiment: Lofi Alarm Clock at 80% against AtCoder Alarm's 0%. AtCoder Alarm's advantage is in-app purchases (none vs 2) and 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lofi Alarm Clock sells 2 in-app purchases, starting at $6.99 per month. AtCoder Alarm asks for nothing beyond the download.

UpkeepUpdate frequency

AtCoder Alarm ships an update daily, Lofi Alarm Clock fortnightly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
AtCoder Alarm versus Lofi Alarm Clock: the parameters behind the verdict, then further details
ParameterAtCoder AlarmLofi Alarm Clock
PriceFreeFree
Rating—4.6 (13 ratings) — better
Positive reviews0.0% of reviews80.0% of reviews — better
Number of ratings—13 — better
Update frequencyDaily — betterFortnightly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPod — betteriPhone
Requires iOS15.5 — better16.2
Further details — not scored
Size27 MB37 MB
Age rating4+4+
DeveloperKiichi ItoJustin Barry

Customer experience

AtCoder Alarm

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Lofi Alarm Clock

All ratings12 ratings
Positive83.3%
Neutral16.7%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral20.0%
Negative0.0%

In-app purchases

None

AtCoder Alarm

No in-app purchases

2 purchases

Lofi Alarm Clock

Subscriptions2
  • Monthly Subscription7 Days trial$6.991 Month
  • Yearly Subscription7 Days trial$59.991 Year

Questions

Is AtCoder Alarm free?
AtCoder Alarm is free to download, with no in-app purchases.
Is Lofi Alarm Clock free?
Lofi Alarm Clock is free to download, with in-app purchases available.
Do AtCoder Alarm or Lofi Alarm Clock have ads?
Neither AtCoder Alarm nor Lofi Alarm Clock shows ads.
Which is updated more often, AtCoder Alarm or Lofi Alarm Clock?
AtCoder Alarm ships an update daily, and Lofi Alarm Clock fortnightly. Most recently, AtCoder Alarm was updated on November 7, 2026 and Lofi Alarm Clock on November 4, 2026.

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