Comparison

Alarm Clock HD vs Cat Alarm Clock

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

Cat Alarm Clock

This app offers a unique alarm clock experience with cat-themed sounds for waking up or falling asleep. Customize your alarms with various feline sounds or your own music, and enjoy features like snooze and a sleep timer.

Highlights
  • Cat-themed alarm sounds
  • Customizable music alarms
  • Snooze function (3-30 minutes)
  • Fade-in alarm
  • Sleep timer
  • Vibration alarm
Features
Read full description

You were supposed to go to a late night gathering, but as usual, you fell asleep and before you knew it, it was morning... We have created an alarm clock app for cats with experiences such as these. MORNING: You can pleasantly wake up to the sounds such as cans of cat food being opened and kittens meowing. EVENING: You can relax and fall asleep to the sounds such as mice squeaking and kittens purring. APP FEATURES: Featuring an easy-to-use user interface that even a paw can use. You can also wake up and fall asleep to the song of your choice. ALARM FUNCTIONS: - Snooze (3 - 30 minutes) - Vibration - Fade in alarm OTHER FEATURES: - Sleep timer (sleep music) - 12 hour and 24 hour time format - Vertical and horizontal modes VOICE OF USERS: - It's a great app! :3 - I was in time for an important meeting thanks to this app :3 - I have good dreams every night with the squeak of a mouse :3

Screenshots

Alarm Clock HD4 screens
Cat Alarm Clock4 screens

Verdict

The call

Alarm Clock HD and Cat Alarm Clock both sit at 4.5 stars, but that hides the real split: 78% of Cat Alarm Clock's written reviews are positive against 32% of Alarm Clock HD's. Cat Alarm Clock also leads on in-app purchases (none vs 11) and iOS requirement (12.3 vs 17.6). Alarm Clock HD's advantage is update cadence (fortnightly vs every 16 months) and ratings volume (104K vs 140). On price, rating, 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 11 in-app purchases, starting at $1.49 per month. Cat Alarm Clock asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for Alarm Clock HD against 4.7 for Cat Alarm Clock. That said, the two scores are not equally well evidenced: Alarm Clock HD has 104K ratings behind it against 140, so its average is the more settled of the two. Written reviews are what separate them: 32% of Alarm Clock HD's written reviews are positive against 78% of Cat Alarm Clock's.

UpkeepUpdate frequency

Alarm Clock HD ships an update fortnightly, Cat Alarm Clock every 16 months. Both last shipped on October 29, 2026.

Scorecard6 real differences · 4 level
Alarm Clock HD versus Cat Alarm Clock: the parameters behind the verdict, then further details
ParameterAlarm Clock HDCat Alarm Clock
PriceFreeFree
Rating4.5 (104K ratings)4.7 (140 ratings) — better
Positive reviews31.6% of reviews77.9% of reviews — better
Number of ratings104K — better140
Update frequencyFortnightly — betterEvery 16 months
AdsYesYes
In-app purchasesYesNo — better
MonetizationFreemiumAd-supported — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.3 — better
Further details — not scored
Size234 MB18 MB
Age rating4+4+
DeveloperImpala StudiosHANBUNCO, INC.

Customer experience

Alarm Clock HD

All ratings104,303 ratings
Positive88.4%
Neutral4.7%
Negative6.9%
Written reviews933 reviews
Positive31.6%
Neutral8.1%
Negative60.2%

Cat Alarm Clock

All ratings139 ratings
Positive90.6%
Neutral3.6%
Negative5.8%
Written reviews113 reviews
Positive77.9%
Neutral7.1%
Negative15.0%

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

Cat Alarm Clock

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Alarm Clock HD

Subscriptions11
  • Premium member - 1 month$1.491 Month
  • Premium Features - Weekly$1.997 Days
  • Premium Features - Monthly3 Days trial$2.591 Month
Show 8 more
  • Upgrade to Premium Features$5.496 Months
  • Premium Yearly$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
  • Premium yearly3 Days trial$29.991 Year
None

Cat Alarm Clock

No in-app purchases

Questions

Is Alarm Clock HD free?
Alarm Clock HD is free to download, with in-app purchases available.
Is Cat Alarm Clock free?
Cat Alarm Clock is free to download, with no in-app purchases.
Which has better reviews, Alarm Clock HD or Cat Alarm Clock?
Cat Alarm Clock is rated higher. Alarm Clock HD averages 4.5 out of 5 from 104K ratings, while Cat Alarm Clock averages 4.7 from 140 ratings.
Do Alarm Clock HD or Cat Alarm Clock have ads?
Both Alarm Clock HD and Cat Alarm Clock show ads.
Which is updated more often, Alarm Clock HD or Cat Alarm Clock?
Alarm Clock HD ships an update fortnightly, and Cat Alarm Clock every 16 months. Most recently, Alarm Clock HD was updated on October 29, 2026 and Cat Alarm Clock on October 29, 2026.

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