# Ajax Security System vs The Aroma Trace

The clearest difference is rating: The Aroma Trace at 5.0 against Ajax Security System's 4.4. The Aroma Trace also leads on review sentiment (100% vs 73%) and iOS requirement (15.0 vs 18.0). Ajax Security System's advantage is ratings volume (273 vs 3) and update cadence (fortnightly vs every 5 weeks). On price, ads, 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.

The Aroma Trace holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Ajax Security System has 273 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 73% of Ajax Security System's written reviews are positive against 100% of The Aroma Trace's.

Ajax Security System ships an update fortnightly, The Aroma Trace every 5 weeks. The most recent releases landed on October 20, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Ajax Security System | The Aroma Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (273 ratings)](https://appshunter.io/ios/app/ajax-security-system/id1063166247/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/the-aroma-trace/id1597517675/reviews)** |
| Number of ratings | **273** | 3 |
| Positive reviews | 72.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 weeks |
| Monetization | **Free** | Ad-supported |
| Size | 745 MB | 64 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, Apple TV, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ajax Systems Inc](https://appshunter.io/developer/1063166246) | [Marketing Olfativo SL](https://appshunter.io/developer/1587690492) |

## What reviewers say

### Ajax Security System

[App page](https://appshunter.io/ios/app/ajax-security-system/id1063166247)

Monitor your home or office security, receive instant alerts, and manage video surveillance and automation from a single interface. Arm/disarm your system, view visual alarm verification, and create custom automation scenarios for enhanced safety and convenience.

**Highlights:** Arm and disarm system remotely, Real-time event monitoring, Instant critical alerts, Visual alarm verification, Automation scenario creation, Mobile panic button, Manage multiple spaces

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable system
- 👍 Easy to use app
- 🔒 Comprehensive security
- 💡 Convenient remote control
- 🚀 Stable and functional

**What reviewers complain about**

- 🐛 App freezes and crashes
- 👎 Constant updates
- 👎 Limited customization options
- 👎 Compatibility issues with iPad
- 👎 Buggy notifications

**Reported bugs**

- App freezing when accessing notifications
- Geofencing not working as expected
- Delayed response when arming/disarming
- Accidental panic button triggers
- Connectivity issues after WiFi changes

**Requested features**

- Ability to schedule night mode
- More sound options for door chimes
- Improved iPad app experience
- Siri/HomeKit integration
- Customizable alarm volume and notifications


### The Aroma Trace

[App page](https://appshunter.io/ios/app/the-aroma-trace/id1597517675)

Control your home or business scent experience with this app. Discover personalized fragrances through a quiz, manage smart diffusers remotely, and schedule scent intensity throughout the day. Monitor fragrance levels and manage multiple devices from a central hub.

**Highlights:** Personalized scent discovery quiz, Remote smart diffuser control (Bluetooth/Wi-Fi), Customizable scent scheduling, Real-time fragrance level monitoring, Multi-device management, Multilingual support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ajax Security System free?

Ajax Security System is free to download, with no in-app purchases.

### Is The Aroma Trace free?

The Aroma Trace is free to download, with no in-app purchases.

### Which has better reviews, Ajax Security System or The Aroma Trace?

The Aroma Trace is rated higher. Ajax Security System averages 4.4 out of 5 from 273 ratings, while The Aroma Trace averages 5.0 from 3 ratings.

### Do Ajax Security System or The Aroma Trace have ads?

Neither Ajax Security System nor The Aroma Trace shows ads.

### Which is updated more often, Ajax Security System or The Aroma Trace?

Ajax Security System ships an update fortnightly, and The Aroma Trace every 5 weeks. Most recently, Ajax Security System was updated on October 20, 2026 and The Aroma Trace on October 14, 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.*