# Sirens and Horns + vs Grumpy Old Tech Robot Control

The clearest difference is ads: Grumpy Old Tech Robot Control at none against Sirens and Horns +'s shown. Grumpy Old Tech Robot Control also leads on iOS requirement (10.3 vs 12.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Sirens and Horns + ships an update every 18 months, Grumpy Old Tech Robot Control every 9 months. The most recent releases landed on June 3, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Sirens and Horns + | Grumpy Old Tech Robot Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (70 ratings)](https://appshunter.io/ios/app/sirens-and-horns-plus/id981228263/reviews)** | — |
| Number of ratings | **70** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 18 months | **Every 9 months** |
| Monetization | Ad-supported | — |
| Size | 27 MB | 14 MB |
| Requires iOS | 12.0 | **10.3** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Jason Torres](https://appshunter.io/developer/981227960) | [Inzant Australia PTY LTD](https://appshunter.io/developer/1491875116) |

## What reviewers say

### Sirens and Horns +

[App page](https://appshunter.io/ios/app/sirens-and-horns-plus/id981228263)

Access a collection of loud, fun sound effects like sirens and horns. Use these sounds for pranks, to annoy friends, or set them as custom ringtones, notifications, or alarms. The app offers high-quality audio and is easy to navigate.

**Highlights:** Loud sound effects, Prank sounds, Custom ringtones, Notification sounds, Alarm sounds, High quality audio

**Features:** macOS Compatibility

**In-app purchases:** none


### Grumpy Old Tech Robot Control

[App page](https://appshunter.io/ios/app/grumpy-old-tech-robot-control/id1379828627)

**In-app purchases:** none


## Frequently asked questions

### Is Sirens and Horns + free?

Sirens and Horns + is free to download, with no in-app purchases.

### Is Grumpy Old Tech Robot Control free?

Grumpy Old Tech Robot Control is free to download, with no in-app purchases.

### Do Sirens and Horns + or Grumpy Old Tech Robot Control have ads?

Sirens and Horns + shows ads; Grumpy Old Tech Robot Control does not.

### Which is updated more often, Sirens and Horns + or Grumpy Old Tech Robot Control?

Sirens and Horns + ships an update every 18 months, and Grumpy Old Tech Robot Control every 9 months. Most recently, Sirens and Horns + was updated on June 3, 2026 and Grumpy Old Tech Robot Control on September 10, 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.*