# Engage SSF vs X

The clearest difference is update cadence: X at every 3 weeks against Engage SSF's every 3 months. X also leads on ratings volume (3.3K vs 68) and review sentiment (91% vs 71%). On price, rating, ads and in-app purchases there is nothing between them.

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

X holds the better App Store score, 4.8 against 4.6. That said, the two scores are not equally well evidenced: X has 3.3K ratings behind it against 68, so its average is the more settled of the two. Written reviews point the same way: 71% of Engage SSF's written reviews are positive against 91% of X's.

Engage SSF ships an update every 3 months, X every 3 weeks. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Engage SSF | X |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (68 ratings)](https://appshunter.io/ios/app/engage-ssf/id943602037/reviews) | **[4.8 (3.3K ratings)](https://appshunter.io/ios/app/x-sense-home-security/id1568666708/reviews)** |
| Number of ratings | 68 | **3.3K** |
| Positive reviews | 71.4% of reviews | **91.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 144 MB | 326 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 12+ |
| Developer | [City of South San Francisco](https://appshunter.io/developer/1470156085) | [X-sense USA LLC](https://appshunter.io/developer/1568666710) |

## What reviewers say

### Engage SSF

[App page](https://appshunter.io/ios/app/engage-ssf/id943602037)

Report issues, ask questions, or share feedback with your city government directly from your smartphone. Utilize GPS for location tagging and attach photos to your submissions. Receive notifications on the status of your reported actions.

**Highlights:** Submit questions and complaints, Provide positive feedback, Use GPS for location tagging, Attach photos to reports, Receive action notifications, Follow and comment on submissions

**Features:** macOS Compatibility

**In-app purchases:** none


### X

[App page](https://appshunter.io/ios/app/x-sense-home-security/id1568666708)

Easily connect and manage smart home security devices. Receive instant alerts for potential dangers and remotely monitor your home's status from anywhere. Share device access with family for collective peace of mind.

**Highlights:** Remote device setup and testing, Real-time push notifications for alerts, Share device access with family, 24/7 fire dispatch (Protect+ Plan), Monitor home status remotely

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy setup
- 🔒 Reliable connectivity
- 👍 Convenient remote monitoring
- 🚀 Straightforward installation
- 👍 Helpful app

**What reviewers complain about**

- 🔋 Battery recharging issues
- 🐛 Connectivity problems
- 🐛 Unreliable notifications
- 🔒 Limited user access
- 🐛 Sensor offline issues

**Reported bugs**

- Devices going offline unexpectedly
- Firmware update failures
- Inconsistent sensor behavior

**Requested features**

- Ability to test alarms from app
- Option to silence alarms remotely
- Support for multiple user logins
- Customizable notification tones
- Expanded location management


## Frequently asked questions

### Is Engage SSF free?

Engage SSF is free to download, with no in-app purchases.

### Is X free?

X is free to download, with no in-app purchases.

### Which has better reviews, Engage SSF or X?

X is rated higher. Engage SSF averages 4.6 out of 5 from 68 ratings, while X averages 4.8 from 3.3K ratings.

### Do Engage SSF or X have ads?

Neither Engage SSF nor X shows ads.

### Which is updated more often, Engage SSF or X?

Engage SSF ships an update every 3 months, and X every 3 weeks. Most recently, Engage SSF was updated on October 8, 2026 and X on October 17, 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.*