Comparison

Safety4Life vs CrownSensor

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

Head to head
About

Safety4Life

Features
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Safety4Life powered by THEGuardianAngel™ smart phone app is the only global smart phone app to provide a 24/7/365 personal global safety response team “VirtualBodyguard” with real time location identification. THEGuardianAngel is a registered Public Safety Answering Point (PSAP) licensee with access to the National Emergency Number Association (NENA) National 911 Registry for response in the United States and access to first responders in 52 countries globally. THEGuardianAngel mobile app enables direct and discreet two-way communication with your organizations command center or safety officials or with our Global Security Operations Center (GSOC) using text, picture, video, audio, and anonymous reporting. Whether you are at home, out of town on business, or traveling internationally, THEGuardianAngel's™ service is your “PEACE OF MIND!” and global Safety4Life! THEGuardianAngel™ GPS based emergency assistance app provides real time monitoring and pinpointing of your location and provides a direct link to our GSOC that is manned by veteran military personnel and former law enforcement crisis management experts. Our emergency response center directs emergency services to assist you globally, or our on-ground teams can provide assistance. THEGuardianAngel’s™ technology and response service is your personal Safety4Life coordinator for universities, schools, enterprises, families, and individuals.


 Features

 100% confidential – Safety4Life powered by THEGuardianAngel™ does not sell the minimal amount of data collected to anyone. The “See Something Say Something” (S4) button allows users to report anomalously situations that need first responder attention without disclosing their identity. Incognito mode when privacy is desired - Should you decide that for a period of time you do not wish to report your location simply press the “Incognito” button. Note: hitting the panic button while in incognito mode sends your location to the GSOC who will dispatch help. Personalization – Safety4Life powered by THEGuardianAngel™ can be personalized with your logo of choice. 24/7/365 global monitoring and response from THEGuardianAngel™ GSOC – Manned by crisis management experts with access to the NENA 911 registry (domestic USA), and access to international first responders. Emergency assistance - With a push of a button you are connected with an operator at our emergency response center who can direct responders to your location.

Emergency push notifications – Stay informed about acts of terrorism, crimes, civil unrest, natural disasters, and weather with our mass notifications feature. 2-way live video with you and emergency responders, calling, SMS texting, and emailing. Anonymous reporting of events (if desired).

About

CrownSensor

Control your phone's volume and screen brightness using Bluetooth-connected IoT hardware. This app enables seamless integration for managing device settings remotely.

Highlights
  • Bluetooth IoT hardware integration
  • Mobile phone volume control
  • Screen brightness adjustment
  • Remote device setting management
Features
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This application demonstrates the application scenario of IoT hardware operating mobile phone volume and screen brightness via Bluetooth.

Screenshots

Safety4Life4 screens
CrownSensor4 screens

Verdict

The call

The clearest difference is update cadence: CrownSensor at every 3 days against Safety4Life's every 4 months. On price, ads, in-app purchases 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.

UpkeepUpdate frequency

Safety4Life ships an update every 4 months, CrownSensor every 3 days. The most recent releases landed on October 13, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 8 level
Safety4Life versus CrownSensor: the parameters behind the verdict, then further details
ParameterSafety4LifeCrownSensor
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.013.0
Further details — not scored
Size41 MB20 MB
Age rating4+4+
DeveloperGuardianAngel LLCShenzhen Lanke Xuntong Technology Co., Ltd.

In-app purchases

None

Safety4Life

No in-app purchases

None

CrownSensor

No in-app purchases

Questions

Is Safety4Life free?
Safety4Life is free to download, with no in-app purchases.
Is CrownSensor free?
CrownSensor is free to download, with no in-app purchases.
Do Safety4Life or CrownSensor have ads?
Neither Safety4Life nor CrownSensor shows ads.
Which is updated more often, Safety4Life or CrownSensor?
Safety4Life ships an update every 4 months, and CrownSensor every 3 days. Most recently, Safety4Life was updated on October 13, 2026 and CrownSensor on October 1, 2026.

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