Comparison

Alarm Clock HD vs Clock Wave

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 Wave

Calibrate your radio-controlled watch or clock using your iPhone or iPad. Simply tap 'Transmit' and place your device near your watch to automatically sync the accurate time.

Highlights
  • Calibrate radio-controlled watches/clocks
  • Transmit accurate time automatically
  • Supports 5 major global time signal stations
  • Manual station selection for compatibility
  • Automatic time signal transmission
Features
Currently charting
Read full description

Clock Wave allows you calibrate radio controlled watch or clock anytime and anywhere. Just click "Transmit" button, set your watch or clock to manual receive time signal, and place it nearby your iPhone/iPad's speaker, it will be calibrated in a few minutes. Clock Wave features: - Covers 5 major longwave time signal stations all over the world. * USA: WWVB * Japan: JJY * China: BPC * UK: MSF * DE: DCF77 - Automatically transmit the accurate time. * If your radio controlled watch/clock doesn't support station BPC, select station JJY manually to use in China. * If your radio controlled watch/clock doesn't support station MSF, select station DCF77 manually to use in UK. * If your radio controlled watch/clock support only a specified timezone or station, (e.g. Using a radio controlled clock support only JJY station in Australia.), select the watch/clock timezone manually in app settings.

Screenshots

Alarm Clock HD4 screens
Clock Wave3 screens

Verdict

The call

The clearest difference is review sentiment: Clock Wave at 92% against Alarm Clock HD's 32%. Clock Wave also leads on in-app purchases (none vs 10) and ads (none vs shown). Alarm Clock HD's advantage is price (Free vs $1.99) and ratings volume (104K vs 248). On 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

Alarm Clock HD is free to download; Clock Wave costs $1.99 up front. Alarm Clock HD sells 10 in-app purchases, starting at $1.49 per month. Clock Wave asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Clock Wave holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Alarm Clock HD has 104K ratings behind it against 248, so its average is the more settled of the two. Written reviews point the same way: 32% of Alarm Clock HD's written reviews are positive against 92% of Clock Wave's.

UpkeepUpdate frequency

Alarm Clock HD ships an update fortnightly, Clock Wave every 2 months. The most recent releases landed on September 27, 2026 and September 26, 2026 respectively.

Scorecard10 real differences · 1 level
Alarm Clock HD versus Clock Wave: the parameters behind the verdict, then further details
ParameterAlarm Clock HDClock Wave
PriceFree — better$1.99
Rating4.5 (104K ratings)4.7 (248 ratings) — better
Positive reviews32.1% of reviews91.6% of reviews — better
Number of ratings104K — better248
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
Best chart rank—#67 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.69.0 — better
Further details — not scored
Size230 MB2 MB
Age rating4+4+
DeveloperImpala Studios震 任

Customer experience

Alarm Clock HD

All ratings104,102 ratings
Positive88.4%
Neutral4.7%
Negative6.9%
Written reviews910 reviews
Positive32.1%
Neutral8.2%
Negative59.7%

Clock Wave

All ratings248 ratings
Positive93.5%
Neutral0.4%
Negative6.0%
Written reviews285 reviews
Positive91.6%
Neutral1.1%
Negative7.4%

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 Wave

From 248 App Store ratings

What we love

  • 🚀 Works as advertised
  • 👍 Easy to use
  • 🚀 Syncs watches quickly
  • 💡 Clever solution for remote areas
  • 👍 Reliable and consistent

Room to improve

  • 🐛 Doesn't work for some watches
  • 🐛 Inconsistent performance
  • 🐛 Occasional crashes or failures

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 Wave

Reported bugs

2 issues
  • Incompatibility with certain iOS versions
  • Incorrect time zone adjustments

Requested features

3 requests
  • Ability to transmit signal automatically
  • Support for more watch brands/models
  • Improved volume/signal strength control

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 Wave

No in-app purchases

Questions

Is Alarm Clock HD free?
Alarm Clock HD is free to download, with in-app purchases available.
Is Clock Wave free?
Clock Wave costs $1.99, with no in-app purchases.
Which has better reviews, Alarm Clock HD or Clock Wave?
Clock Wave is rated higher. Alarm Clock HD averages 4.5 out of 5 from 104K ratings, while Clock Wave averages 4.7 from 248 ratings.
Do Alarm Clock HD or Clock Wave have ads?
Alarm Clock HD shows ads; Clock Wave does not.
Which is updated more often, Alarm Clock HD or Clock Wave?
Alarm Clock HD ships an update fortnightly, and Clock Wave every 2 months. Most recently, Alarm Clock HD was updated on September 27, 2026 and Clock Wave on September 26, 2026.

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