Comparison

Alarm Clock HD vs Clock Alarm++

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

Head to head
About

Alarm Clock HD

Wake up gently with your favorite music or sounds using this advanced alarm clock. It offers customizable nightstand displays, sleep tracking, and a sleep timer to help you unwind. Enjoy features like local weather and an instant flashlight, with an option to go ad-free via subscription.

Highlights
  • Unlimited alarms with Apple Music or custom sounds
  • Sleep tracking
  • Customizable nightstand display
  • Sleep timer
  • Local weather information
  • Instant flashlight
  • Screen saver for OLED displays
Features
Read full description

Sleep better and start the day with your favorite tunes. Are you curious to see how much you slept? Then, track your sleep in the app. Alarm Clock HD is the app to help you enjoy restful sleep and wake up worry-free. How Alarm Clock HD helps you sleep better: • Unlimited Alarms: Apple Music or Alarm Sounds • Customize Nightstand display colors • Sleep Timer • Local Weather Information • Instant Flashlight - shake the device • Full watchOS 2 support • Screen Saver - for devices with OLED display WAKE UP ON TIME: Proper Alarm Settings • Keep the app open and running always to have your alarm go off and play the sounds you’ve set for ‘Music'. When your app is open, you can use the volume slider within the app. When the app is in the background, use the device volume to set your volume. • Make sure your battery is charged and have your notifications turned on before you go to sleep, when the battery level goes below 30% it might not sound. This is due to prevent the device from dying and the alarm not going off. • Keep your Apple Music available on your device The music you can select consists of everything you have available on your ‘Apple Music' app on your device. If the music is saved on your iCloud, and not on the device itself, it won’t be available. NEVER MISS AN ALARM When you close the app and do not have it running in the background, the alarm will use the device volume instead and play the notification sound system. The app will close itself automatically after 10 hours of inactivity. This is due to prevent the device from dying and the alarm not going off. When your device is muted, set to ‘Do Not Disturb’, or your device volume is set to 0, the alarm won’t play properly. It will still show the notification without any sound. This is due to Apple’s restrictions as we are unable to access the app settings when the app is closed, only when it’s open or running in the background. SUBSCRIPTION IN ALARM CLOCK HD Upgrade to a Premium Membership and receive the following ongoing value: • Ad-Free • News & X feeds (Twitter) • Premium Customer Support Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy >> WE LOVE FEEDBACK As always, we appreciate your feedback. Please email us at support@impalastudios.com with any suggestions or questions, our support team is ready and happy to help. WAKE UP YOUR WAY, EVERY DAY

About

Clock Alarm++

This app offers a customizable alarm experience with a variety of sounds and a smart wake-up feature to ensure you feel refreshed. It also includes white noise sleep sounds with a timer and bedtime reminders for better sleep hygiene.

Highlights
  • Variety of alarm sounds
  • White noise sleep sounds with timer
  • Customizable digital screen
  • Smart alarm and snooze
  • Multiple and recurring alarms
  • Bedtime reminder
Features
Read full description

Welcome to Clock Alarm, the ultimate iOS app designed to revolutionize your mornings and transform the way you wake up. With a range of innovative features and customizable options, Clock Alarm ensures you start your day on the right note, feeling refreshed and ready to conquer the world. Key Features: 1. Alarm with a Variety of Sounds: Clock Alarm offers a wide selection of alarm sounds to suit your preferences. Whether you prefer gentle melodies, nature-inspired tunes, or energetic beats, there's a sound to match every mood. Wake up to your favorite music, a soothing melody, or even the sound of chirping birds – the choice is yours! 2. White Noise Sleep Sounds with Timer: Trouble falling asleep? Clock Alarm has you covered. Enjoy a peaceful night's sleep with a collection of high-quality white noise sleep sounds, such as rain, waves, and forest ambience. Set a timer to automatically turn off the sounds after a certain duration, allowing you to relax and drift off into a restful sleep. 3. Customizable Digital Screen: Personalize your wake-up experience with Clock Alarm's customizable digital screen. Choose from a variety of visually appealing colors and font styles to create a display that resonates with your taste and complements your device's aesthetics. Whether you prefer a sleek minimalistic look or a vibrant burst of color, the app lets you create a unique and visually pleasing clock face. 4. Smart Alarm and Snooze Function: Never oversleep again with Clock Alarm's smart alarm feature. The app analyzes your sleep patterns and ensures that you wake up during a light sleep phase, leaving you feeling refreshed and energized. Activate the snooze function for those mornings when you need a few extra moments of rest without worrying about oversleeping. 5. Multiple Alarms and Recurring Alarms: Clock Alarm allows you to set multiple alarms for different occasions, ensuring you never miss an important event or appointment. Whether it's a weekday wake-up call or a reminder for an important meeting, the app lets you schedule alarms with ease. You can also set recurring alarms, saving you the hassle of manually setting them every day. 6. Bedtime Reminder: Maintain a consistent sleep schedule with Clock Alarm's bedtime reminder feature. Set a reminder to receive a notification when it's time to wind down and prepare for bed. Establishing a regular sleep routine can significantly improve your overall sleep quality and well-being. Clock Alarm is the perfect companion for anyone seeking to enhance their sleep and wake-up experience. Download the app now and start enjoying peaceful nights and energized mornings. Wake up refreshed, rejuvenated, and ready to embrace each day with Clock Alarm – the ultimate iOS alarm app. Note: Clock Alarm requires iOS 15.4 or later. Some features may vary depending on your device's compatibility and operating system version.

Screenshots

Alarm Clock HD4 screens
Clock Alarm++4 screens

Verdict

The call

The clearest difference is in-app purchases: Clock Alarm++ at none against Alarm Clock HD's 10. Clock Alarm++ also leads on review sentiment (42% vs 32%) and iOS requirement (15.0 vs 17.6). Alarm Clock HD's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (104K vs 1.4K). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Alarm Clock HD sells 10 in-app purchases, starting at $1.49 per month. Clock Alarm++ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Alarm Clock HD holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Alarm Clock HD has 104K ratings behind it against 1.4K, so its average is the more settled of the two. Written reviews complicate that: 32% of Alarm Clock HD's written reviews are positive against 42% of Clock Alarm++'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Alarm Clock HD ships an update fortnightly, Clock Alarm++ every 4 months. Both last shipped on September 24, 2026.

Scorecard7 real differences · 3 level
Alarm Clock HD versus Clock Alarm++: the parameters behind the verdict, then further details
ParameterAlarm Clock HDClock Alarm++
PriceFreeFree
Rating4.5 (104K ratings) — better4.2 (1.4K ratings)
Positive reviews32.0% of reviews42.1% of reviews — better
Number of ratings104K — better1.4K
Update frequencyFortnightly — betterEvery 4 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size230 MB21 MB
Age rating4+4+
DeveloperImpala StudiosUniCom Technology

Customer experience

Alarm Clock HD

All ratings104,102 ratings
Positive88.4%
Neutral4.7%
Negative6.9%
Written reviews908 reviews
Positive32.0%
Neutral8.3%
Negative59.7%

Clock Alarm++

All ratings1,386 ratings
Positive80.1%
Neutral6.1%
Negative13.9%
Written reviews38 reviews
Positive42.1%
Neutral7.9%
Negative50.0%

User reviews

Alarm Clock HD

From 104K App Store ratings

What we love

  • 🚀 Reliable alarm clock
  • 🎨 Customizable colors
  • 🔊 Ability to use music as alarm
  • 💤 Gradual volume increase

Room to improve

  • 🐛 Alarm not going off
  • 🔍 Difficulty seeing small buttons/text
  • 💸 Subscription model for ad-free version
  • 🔋 High battery consumption
  • 🔇 Alarm muting phone volume

Clock Alarm++

From 1.4K App Store ratings

What we love

  • 👍 Free app with no ads
  • 🚀 Simple and straightforward interface
  • 💡 Customizable alarm sounds and settings
  • 👍 Reliable alarm clock functionality

Room to improve

  • 🐛 Snooze button not working as expected
  • 🐛 Alarm not turning off properly
  • 🔍 Unclear interface and controls
  • 🔍 Difficult to delete alarms

Bugs and requests

Alarm Clock HD

Reported bugs

4 issues
  • Alarm randomly snoozing itself
  • Alarm not working when phone is muted
  • Alarm sound not playing
  • Alarm screen freezing/crashing

Requested features

4 requests
  • 24-hour clock option
  • More alarm sounds/tones
  • Ability to use own music files
  • Do not disturb mode

Clock Alarm++

Reported bugs

4 issues
  • Alarm volume keeps increasing
  • App crashes when adjusting white noise volume
  • Minute digits missing on iPad
  • Alarm not working consistently

Requested features

4 requests
  • Add 12-hour time format option
  • Improve alarm sound selection
  • Allow naming of individual alarms
  • Integrate with music library for alarm sounds

In-app purchases

10 purchases

Alarm Clock HD

Subscriptions10
  • Premium member - 1 month$1.491 Month
  • Premium Features - Weekly$1.997 Days
  • Premium Features - Monthly3 Days trial$2.591 Month
Show 7 more
  • Upgrade to Premium Features$5.496 Months
  • Premium Yearly3 Days trial$9.991 Year
  • Premium Yearly3 Days trial$11.991 Year
  • Upgrade Your Alarm Clock3 Days trial$14.991 Year
  • Premium yearly$19.991 Year
  • Premium yearly3 Days trial$19.991 Year
  • Premium yearly3 Days trial$24.991 Year
None

Clock Alarm++

No in-app purchases

Questions

Is Alarm Clock HD free?
Alarm Clock HD is free to download, with in-app purchases available.
Is Clock Alarm++ free?
Clock Alarm++ is free to download, with no in-app purchases.
Which has better reviews, Alarm Clock HD or Clock Alarm++?
Alarm Clock HD is rated higher. Alarm Clock HD averages 4.5 out of 5 from 104K ratings, while Clock Alarm++ averages 4.2 from 1.4K ratings.
Do Alarm Clock HD or Clock Alarm++ have ads?
Both Alarm Clock HD and Clock Alarm++ show ads.
Which is updated more often, Alarm Clock HD or Clock Alarm++?
Alarm Clock HD ships an update fortnightly, and Clock Alarm++ every 4 months. Most recently, Alarm Clock HD was updated on September 24, 2026 and Clock Alarm++ on September 24, 2026.

Other comparisons