# Alarm Clock HD vs Cat Alarm Clock

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.

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.

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.

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

## The numbers

| Metric | Alarm Clock HD | Cat Alarm Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (104K ratings)](https://appshunter.io/ios/app/alarm-clock-hd/id476555713/reviews) | **[4.7 (140 ratings)](https://appshunter.io/ios/app/cat-alarm-clock-3/id766581921/reviews)** |
| Number of ratings | **104K** | 140 |
| Positive reviews | 31.6% of reviews | **77.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 16 months |
| Monetization | Freemium | **Ad-supported** |
| Size | 234 MB | 18 MB |
| Requires iOS | 17.6 | **12.3** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [HANBUNCO, INC.](https://appshunter.io/developer/436677464) |

## What reviewers say

### Alarm Clock HD

[App page](https://appshunter.io/ios/app/alarm-clock-hd/id476555713)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium member - 1 month | $1.49 | per month |
| Premium Features - Weekly | $1.99 | per 7 days |
| Premium Features - Monthly | $2.59 | per month |
| Upgrade to Premium Features | $5.49 | per 6 months |
| Premium Yearly | $9.99 | per year |
| Premium Yearly | $11.99 | per year |
| Upgrade Your Alarm Clock | $14.99 | per year |
| Premium yearly | $19.99 | per year |
| Premium yearly | $19.99 | per year |
| Premium yearly | $24.99 | per year |
| Premium yearly | $29.99 | per year |

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


### Cat Alarm Clock

[App page](https://appshunter.io/ios/app/cat-alarm-clock-3/id766581921)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*