Alarm Free vs S
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Alarm Free
This app provides a personal safety alarm with advanced motion detection. It can trigger an alert with sound and light when rapid movement or free-fall is detected, or with a simple screen tap.
- Rapid-movement detector
- Free-fall detector
- Screen tap alert
- Synchronized alarm sound
- Flashlight activation
- Apple Watch integration
Read full descriptionHide full description
Alarm is a self-defence/emergency alarm application with a rapid-movement and free-fall detector. You can also touch the screen to give a warning. Not only a red screen blinking but also an alarm sound and a flash light are synchronized if the device has such functionalities. The Apple Watch app also blinks but it's limited for a few time only to save the battery.
S
This utility app allows users to select the optimal operating state for S-Quad fire sensors. It simplifies the process of setting sensor sensitivity for specific applications, enabling fixed states or time-based programming for enhanced fire detection accuracy.
- Select optimal sensor states
- Simplify sensitivity settings
- Fix sensor states
- Program time-based operation
- Enhance fire detection accuracy
Read full descriptionHide full description
Detect fires fast and eliminate false alarms with S-Quad accuracy. Gent by Honeywell’s LPCB approved S-Quad sensor range for Vigilon is the most innovative solution to the detection and signalling of fires available on the market today. This advanced sensing technology is coupled with an integral sounder with speech capability and strobe in the same device. The S-Quad sensor leaves the Gent factory in the Sensitivity State 0 which is suitable for many applications. However, S-Quad is an amazing sensor that can do so much more for you! - Use the S-Quad Selector to choose the very best ‘state’ to ensure the S-Quad sensor provides its optimum performance. - Simplify the process for setting the optimum sensitivity state you need for a particular application. This sensor state can be selected and fixed within an environment, or individual sensors can be programmed to operate during specific time periods.
Screenshots
Verdict
The clearest difference is rating: Alarm Free at 3.3 against S's 1.0. Alarm Free also leads on ratings volume (13 vs 1). S's advantage is review sentiment (75% vs 35%) and ads (none vs shown). On price, in-app purchases, monetization model and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Alarm Free holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: Alarm Free has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 35% of Alarm Free's written reviews are positive against 75% of S's, so the app with the better star average is not the one people write more warmly about.
Alarm Free ships an update every 29 months, S every 2 months. The most recent releases landed on October 31, 2026 and November 4, 2026 respectively.
| Parameter | Alarm Free | S |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (13 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 35.4% of reviews | 75.0% of reviews — better |
| Number of ratings | 13 — better | 1 |
| Update frequency | Every 29 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.6 | 6.0 — better |
| Further details — not scored | ||
| Size | 6 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | Masayuki Akamatsu | Honeywell International, Inc. |
Customer experience
Alarm Free
S
Bugs and requests
Alarm Free
Reported bugs
2 issues- Doesn't work when phone is locked or in sleep mode
- Causes iPhone to freeze and require restore
Requested features
4 requests- Louder alarm sound
- Ability to run in the background
- Sensitivity adjustment
- Password protection to prevent deactivation
S
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Alarm Free
No in-app purchases
S
No in-app purchases








