Comparison

Air Raid Siren vs Backyard Apollo AR

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Air Raid Siren

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
Read full description

Finally, a mobile air raid siren! Now you will never have to worry about your friends and family being unprepared for an incoming bombing raid again, because you will be able to warn them right from your device! Impress your friends! Win the respect of your family! Secure that job promotion! Get the girl! All is possible when you download Air Raid Siren! Air Raid Siren is a free and epic soundboard app featuring many high quality stereo sound effects from tornado and air raid sirens. Includes siren sounds from around the world! Prank your neighbors into thinking there is an incoming air raid! Sounds include: acap50 brattleboro carter loop carter hand siren model 2 model 7t model 2580 sentry yugoslavian and many more! Tap on the play button play a single time. Tap the repeat button to put the sounds into infinite loop mode! Also, play multiple sounds at once to make it sound like there is a full out war going on! Will the fun ever end? No. Thanks to SoundMaster 391 for Modulator 6024 audio clip from Freesound. I am always looking to improve my apps, so if you have any suggestions please let me know and I will try to make an update ASAP. This app is for you guys!

About

Backyard Apollo AR

Experience a life-sized Apollo Saturn V rocket in augmented reality. Explore it from all angles, walk around it, and launch it with realistic sounds and visuals. Customize your rocket experience and share snapshots.

Highlights
  • Life-sized rocket model
  • 360-degree viewing
  • Augmented reality placement
  • Realistic launch sequence
  • Authentic mission sounds
  • Customizable rocket experience
  • Snapshot sharing
Read full description

Its the model rocket you’ve always wanted! See a life-sized Apollo Saturn V rocket up close from every angle walk under and around it, then blast it off! Authentic mission sounds using 3D positional audio — wear headphones for the coolest effect — combine with realistic high-detail graphics, physically-based rendering, and HDR audio recordings of real rocket launches to make the experience just like being there! You’ll be able to launch your rocket again and again, from anywhere you like. Just tap where you want your rocket to appear. It's that easy! Launch a tiny model on your desktop or a full-sized giant in a field! Backyard Apollo offers ways to customize your experience too, making it even more fun to launch your rockets and take snapshots for your friends. “3…2…1…Houston: we have liftoff”!

Screenshots

Air Raid Siren4 screens
Backyard Apollo AR4 screens

Verdict

The call

The clearest difference is in-app purchases: Backyard Apollo AR at none against Air Raid Siren's 1. Backyard Apollo AR also leads on ads (none vs shown) and rating (4.7 vs 4.5). On price, review sentiment, ratings volume and update cadence 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

Both are free to download. Air Raid Siren sells 1 one-off in-app purchase. Backyard Apollo AR asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Backyard Apollo AR holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 811 and 1.5K respectively. Written reviews point the same way: 66% of Air Raid Siren's written reviews are positive against 70% of Backyard Apollo AR's.

UpkeepUpdate frequency

Air Raid Siren ships an update every 6 months, Backyard Apollo AR every 7 months. The most recent releases landed on October 24, 2026 and October 26, 2026 respectively.

Scorecard5 real differences · 5 level
Air Raid Siren versus Backyard Apollo AR: the parameters behind the verdict, then further details
ParameterAir Raid SirenBackyard Apollo AR
PriceFreeFree
Rating4.5 (811 ratings)4.7 (1.5K ratings) — better
Positive reviews66.4% of reviews69.6% of reviews — better
Number of ratings8111.5K — better
Update frequencyEvery 6 months — betterEvery 7 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.6 — better
Further details — not scored
Size6 MB82 MB
Age rating4+4+
DeveloperBrandon SteckleinWobbleworks LLC

Customer experience

Air Raid Siren

All ratings787 ratings
Positive86.0%
Neutral3.7%
Negative10.3%
Written reviews143 reviews
Positive66.4%
Neutral6.3%
Negative27.3%

Backyard Apollo AR

All ratings1,488 ratings
Positive93.5%
Neutral2.8%
Negative3.8%
Written reviews69 reviews
Positive69.6%
Neutral4.3%
Negative26.1%

User reviews

Air Raid Siren

From 811 App Store ratings

What we love

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

Room to improve

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

Backyard Apollo AR

From 1.5K App Store ratings

What we love

  • 🚀 Realistic rocket simulation
  • 👍 Engaging and educational experience
  • 💡 Potential for more rocket models
  • 👍 Free to download

Room to improve

  • 🐛 Frequent crashes and freezes
  • 🐛 Camera authorization issues
  • 🔋 High memory and storage usage
  • 🐛 Compatibility problems on older devices

Bugs and requests

Air Raid Siren

Reported bugs

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

Requested features

4 requests
  • 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

Backyard Apollo AR

Reported bugs

3 issues
  • Startup crashes and sensor reset loops
  • Rocket launch sequence freezes
  • Persistent audio issues after app closure

Requested features

3 requests
  • Add more rocket models and launch configurations
  • Implement video recording capability
  • Improve overall stability and performance

In-app purchases

1 purchases

Air Raid Siren

One-time1
  • Advertising Removal$2.99
None

Backyard Apollo AR

No in-app purchases

Questions

Is Air Raid Siren free?
Air Raid Siren is free to download, with in-app purchases available.
Is Backyard Apollo AR free?
Backyard Apollo AR is free to download, with no in-app purchases.
Which has better reviews, Air Raid Siren or Backyard Apollo AR?
Backyard Apollo AR is rated higher. Air Raid Siren averages 4.5 out of 5 from 811 ratings, while Backyard Apollo AR averages 4.7 from 1.5K ratings.
Do Air Raid Siren or Backyard Apollo AR have ads?
Air Raid Siren shows ads; Backyard Apollo AR does not.
Which is updated more often, Air Raid Siren or Backyard Apollo AR?
Air Raid Siren ships an update every 6 months, and Backyard Apollo AR every 7 months. Most recently, Air Raid Siren was updated on October 24, 2026 and Backyard Apollo AR on October 26, 2026.

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