Comparison

Alarm Free vs S

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

Head to head
About

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.

Highlights
  • Rapid-movement detector
  • Free-fall detector
  • Screen tap alert
  • Synchronized alarm sound
  • Flashlight activation
  • Apple Watch integration
Features
Read 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.

About

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.

Highlights
  • Select optimal sensor states
  • Simplify sensitivity settings
  • Fix sensor states
  • Program time-based operation
  • Enhance fire detection accuracy
Read 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

Alarm Free3 screens
S4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Alarm Free versus S: the parameters behind the verdict, then further details
ParameterAlarm FreeS
PriceFreeFree
Rating3.3 (13 ratings) — better1.0 (1 ratings)
Positive reviews35.4% of reviews75.0% of reviews — better
Number of ratings13 — better1
Update frequencyEvery 29 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS17.66.0 — better
Further details — not scored
Size6 MB84 MB
Age rating4+4+
DeveloperMasayuki AkamatsuHoneywell International, Inc.

Customer experience

Alarm Free

All ratings13 ratings
Positive53.8%
Neutral7.7%
Negative38.5%
Written reviews311 reviews
Positive35.4%
Neutral10.6%
Negative54.0%

S

Written reviews4 reviews
Positive75.0%
Neutral0.0%
Negative25.0%

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

None

Alarm Free

No in-app purchases

None

S

No in-app purchases

Questions

Is Alarm Free free?
Alarm Free is free to download, with no in-app purchases.
Is S free?
S is free to download, with no in-app purchases.
Which has better reviews, Alarm Free or S?
Alarm Free is rated higher. Alarm Free averages 3.3 out of 5 from 13 ratings, while S averages 1.0 from 1 ratings.
Do Alarm Free or S have ads?
Alarm Free shows ads; S does not.
Which is updated more often, Alarm Free or S?
Alarm Free ships an update every 29 months, and S every 2 months. Most recently, Alarm Free was updated on October 31, 2026 and S on November 4, 2026.

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