Comparison

Alarm Clock HD vs Flip Clock Pro

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

Flip Clock Pro

A minimalist desktop digital clock offering a variety of customization options. It displays time with seconds, includes a smart alarm, timer, stopwatch, and Pomodoro timer. The app also supports white noise and personalized signatures.

Highlights
  • Display time with seconds
  • Smart alarm clock
  • Timer and stopwatch
  • Pomodoro Technique timer
  • Multiple clock themes
  • Background white noise playback
  • Home and lock screen widgets
Features
Read full description

Flip Clock Pro is a minimalist desktop digital clock. Desktop clock widget supports displaying seconds and calendar. - Show time in seconds on Dynamic island - Full screen display time and date - 12 and 24 hour modes. - Smart alarm clock, can automatically adjust the volume. - Support multiple clock themes. - Provide timer and stopwatch, countdown. - The Pomodoro Technique helps you focus on work and study. - Support playing background white noise. - Show time seconds in Today widget. - Provide home screen and lock screen clock widget display with seconds. - Provide calendar and clock widget display. - Support to display personalized signature on the lock screen - Hourly chime, hourly voice timekeeping. - You can set the app to automatically launch when charging, as a screensaver.

Screenshots

Alarm Clock HD4 screens
Flip Clock Pro4 screens

Verdict

The call

The clearest difference is price: Alarm Clock HD at Free against Flip Clock Pro's $2.99. Alarm Clock HD also leads on ratings volume (104K vs 1.5K) and update cadence (fortnightly vs every 2 months). Flip Clock Pro's advantage is review sentiment (74% vs 32%) and in-app purchases (none vs 10). On rating 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; Flip Clock Pro costs $2.99 up front. Alarm Clock HD sells 10 in-app purchases, starting at $1.49 per month. Flip Clock Pro 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 4.6 for Flip Clock Pro. That said, the two scores are not equally well evidenced: Alarm Clock HD has 104K ratings behind it against 1.5K, 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 74% of Flip Clock Pro's.

UpkeepUpdate frequency

Alarm Clock HD ships an update fortnightly, Flip Clock Pro every 2 months. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

Scorecard9 real differences · 1 level
Alarm Clock HD versus Flip Clock Pro: the parameters behind the verdict, then further details
ParameterAlarm Clock HDFlip Clock Pro
PriceFree — better$2.99
Rating4.5 (104K ratings)4.6 (1.5K ratings) — better
Positive reviews32.0% of reviews74.1% of reviews — better
Number of ratings104K — better1.5K
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemium — betterPaid
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS17.615.0 — better
Further details — not scored
Size230 MB46 MB
Age rating4+4+
DeveloperImpala Studios翠玲 施

Customer experience

Alarm Clock HD

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

Flip Clock Pro

All ratings1,496 ratings
Positive91.4%
Neutral4.0%
Negative4.6%
Written reviews305 reviews
Positive74.1%
Neutral8.9%
Negative17.0%

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

Flip Clock Pro

From 1.5K App Store ratings

What we love

  • 👍 Great app with lots of customization options
  • 👍 Useful features like alarm clock and vertical flip clock
  • 👍 Simple and clean interface
  • 👍 Visible from a distance
  • 👍 Nostalgic retro style

Room to improve

  • 🐛 Occasional crashes and bugs
  • 🐛 Inconsistent sound and alarm issues
  • 🐛 Seconds digit freezing up
  • 🐛 Widget not respecting app settings
  • 🔋 Brightness issues and screen burn-in concerns

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

Flip Clock Pro

Reported bugs

4 issues
  • Seconds digit freezing
  • Widget not showing 12-hour time format
  • Brightness issues when leaving app open
  • Inconsistent sound and alarm problems

Requested features

6 requests
  • Add more alarm sound options
  • Allow customization of alarm sound from music library
  • Implement a snooze function
  • Add ability to set multiple alarm times
  • Provide more color and font customization options
Show 1 more
  • Improve landscape mode support

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

Flip Clock Pro

No in-app purchases

Questions

Is Alarm Clock HD free?
Alarm Clock HD is free to download, with in-app purchases available.
Is Flip Clock Pro free?
Flip Clock Pro costs $2.99, with no in-app purchases.
Which has better reviews, Alarm Clock HD or Flip Clock Pro?
Flip Clock Pro is rated higher. Alarm Clock HD averages 4.5 out of 5 from 104K ratings, while Flip Clock Pro averages 4.6 from 1.5K ratings.
Do Alarm Clock HD or Flip Clock Pro have ads?
Alarm Clock HD shows ads; Flip Clock Pro does not.
Which is updated more often, Alarm Clock HD or Flip Clock Pro?
Alarm Clock HD ships an update fortnightly, and Flip Clock Pro every 2 months. Most recently, Alarm Clock HD was updated on September 24, 2026 and Flip Clock Pro on September 22, 2026.

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