# Alarm Clock HD vs PreventPro

The clearest difference is ads: PreventPro at none against Alarm Clock HD's shown. PreventPro also leads on rating (5.0 vs 4.5). Alarm Clock HD's advantage is ratings volume (104K vs 1) and update cadence (fortnightly vs every 5 weeks). On price, in-app purchases, monetization model 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 and PreventPro sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PreventPro holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Alarm Clock HD has 104K ratings behind it against 1, so its average is the more settled of the two.

Alarm Clock HD ships an update fortnightly, PreventPro every 5 weeks. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Alarm Clock HD | PreventPro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (104K ratings)](https://appshunter.io/ios/app/alarm-clock-hd/id476555713/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/preventpro/id6758487896/reviews)** |
| Number of ratings | **104K** | 1 |
| Positive reviews | 31.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 234 MB | 5 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Impala Studios](https://appshunter.io/developer/1063279743) | [Newville Distribution LLC](https://appshunter.io/developer/1873163729) |

## 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


### PreventPro

[App page](https://appshunter.io/ios/app/preventpro/id6758487896)

This app helps new homeowners proactively manage their property. It offers structured checklists for monthly inspections, tools to calculate the financial impact of delaying repairs or dealing with pests, and a budget builder for long-term maintenance planning.

**Highlights:** Monthly home inspection checklists, Pest risk financial impact calculator, Cost of delaying repairs calculator, Prevention budget builder, Professional inspection report export

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PreventPro Pro – Lifetime Access | $29.99 | one-time |


## Frequently asked questions

### Is Alarm Clock HD free?

Alarm Clock HD is free to download, with in-app purchases available.

### Is PreventPro free?

PreventPro is free to download, with in-app purchases available.

### Which has better reviews, Alarm Clock HD or PreventPro?

PreventPro is rated higher. Alarm Clock HD averages 4.5 out of 5 from 104K ratings, while PreventPro averages 5.0 from 1 ratings.

### Do Alarm Clock HD or PreventPro have ads?

Alarm Clock HD shows ads; PreventPro does not.

### Which is updated more often, Alarm Clock HD or PreventPro?

Alarm Clock HD ships an update fortnightly, and PreventPro every 5 weeks. Most recently, Alarm Clock HD was updated on October 21, 2026 and PreventPro on October 18, 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.*