# Air Raid Siren vs Thunderstorm Simulator (w/Ads)

The clearest difference is in-app purchases: Thunderstorm Simulator (w/Ads) at none against Air Raid Siren's 1. Thunderstorm Simulator (w/Ads) also leads on iOS requirement (15.0.0 vs 17.6). Air Raid Siren's advantage is ratings volume (814 vs 12) and review sentiment (66% vs 50%). On price, rating, update cadence and ads there is nothing between them.

Both are free to download. Air Raid Siren sells 1 one-off in-app purchase. Thunderstorm Simulator (w/Ads) asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.5 for Air Raid Siren against 4.6 for Thunderstorm Simulator (w/Ads). That said, the two scores are not equally well evidenced: Air Raid Siren has 814 ratings behind it against 12, so its average is the more settled of the two. Written reviews are what separate them: 66% of Air Raid Siren's written reviews are positive against 50% of Thunderstorm Simulator (w/Ads)'s.

Air Raid Siren ships an update every 6 months, Thunderstorm Simulator (w/Ads) every 4 months. The most recent releases landed on November 5, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Air Raid Siren | Thunderstorm Simulator (w/Ads) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (814 ratings)](https://appshunter.io/ios/app/air-raid-siren/id979050977/reviews) | **[4.6 (12 ratings)](https://appshunter.io/ios/app/thunderstorm-simulator-wads/id1482707561/reviews)** |
| Number of ratings | **814** | 12 |
| Positive reviews | **66.2% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 6 months | **Every 4 months** |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 6 MB | 75 MB |
| Requires iOS | 17.6 | **15.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Brandon Stecklein](https://appshunter.io/developer/498894252) | [Scott Dodson](https://appshunter.io/developer/1033778296) |

## What reviewers say

### Air Raid Siren

[App page](https://appshunter.io/ios/app/air-raid-siren/id979050977)

This app provides a collection of high-quality stereo sound effects of air raid and tornado sirens from around the world. Users can play single sounds, loop them infinitely, or even play multiple sounds simultaneously for a chaotic effect. It's designed for entertainment and to warn others.

**Highlights:** High-quality stereo siren sound effects, Global siren sounds, Single play mode, Infinite loop mode, Play multiple sounds simultaneously, Prank and entertainment use

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Advertising Removal | $2.99 | one-time |

**What reviewers like**

- 🤑 Funny to use
- 🔊 Realistic siren sounds
- 🤓 Great for siren enthusiasts

**What reviewers complain about**

- 🐢 Slow loading times
- 🐛 Crashes and bugs
- 🚫 Doesn't work on some devices

**Reported bugs**

- Constant loading issues
- Crashes on launch for many users
- Marching button doesn't work

**Requested features**

- Add more siren sounds (e.g. Whelen Vortex, T-128, Hurricane 130, Alertronic 6000)
- Improve sound quality and naming of some sirens
- Allow uploading custom sounds
- Add a tornado warning siren


### Thunderstorm Simulator (w/Ads)

[App page](https://appshunter.io/ios/app/thunderstorm-simulator-wads/id1482707561)

Create a personalized thunderstorm experience to aid relaxation and sleep. Customize rain intensity, thunder frequency, lightning effects, and background sounds. Includes a sleep timer with audio fade-out.

**Highlights:** Customizable thunderstorm types, Adjustable rain and thunder sounds, Toggleable lightning effects, Background ambient sounds, Sleep timer with fade-out, Bluetooth and AirPlay support

**In-app purchases:** none


## Frequently asked questions

### Is Air Raid Siren free?

Air Raid Siren is free to download, with in-app purchases available.

### Is Thunderstorm Simulator (w/Ads) free?

Thunderstorm Simulator (w/Ads) is free to download, with no in-app purchases.

### Which has better reviews, Air Raid Siren or Thunderstorm Simulator (w/Ads)?

Thunderstorm Simulator (w/Ads) is rated higher. Air Raid Siren averages 4.5 out of 5 from 814 ratings, while Thunderstorm Simulator (w/Ads) averages 4.6 from 12 ratings.

### Do Air Raid Siren or Thunderstorm Simulator (w/Ads) have ads?

Both Air Raid Siren and Thunderstorm Simulator (w/Ads) show ads.

### Which is updated more often, Air Raid Siren or Thunderstorm Simulator (w/Ads)?

Air Raid Siren ships an update every 6 months, and Thunderstorm Simulator (w/Ads) every 4 months. Most recently, Air Raid Siren was updated on November 5, 2026 and Thunderstorm Simulator (w/Ads) on November 3, 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.*