Comparison

Smart911 vs HTZSAFE

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

Head to head
About

Smart911

Enhance emergency preparedness by creating a Safety Profile to share vital household information with 9-1-1. Receive targeted emergency alerts for weather, traffic, and public safety events.

Highlights
  • Create Safety Profiles
  • Share household information with 9-1-1
  • Receive emergency alerts
  • Customize notification types
  • View medical and contact details
Features
Read full description

Be better prepared for any emergency with Smart911. By signing up, you can share lifesaving information about your household with 9-1-1 and receive targeted emergency alerts. When you call 9-1-1, your Smart911 Safety Profile displays on the 9-1-1 screen. The 9-1-1 call takers can view your addresses, medical information, home information, pets and vehicles, and emergency contacts. You can provide as much or as little information as you like. This additional information enables 9-1-1 and first responders to send help fast. Smart911 can also keep you informed of weather, traffic, and other emergencies by sending emergency alerts from the National Weather Service and local public safety agencies. You can select the types of notifications you want and how you want to be notified. Smart911: Information worth sharing. Sign up today.

About

HTZSAFE

This app allows you to set up and remotely control a smart DIY security system for your home or business. Receive instant alarm notifications and manage detectors, arm/disarm schedules, and event logs from anywhere.

Highlights
  • Remote system control
  • Instant alarm notifications
  • Scheduled arm/disarm
  • Add/delete detectors
  • Detector type setting
  • Event log tracking
Features
Read full description

HTZSAFE focus on developing and manufacturing the more professional and more practical smart DIY security system to secure your home and business from burglars,fires, leaks, floods and SOS. The APP: - Set up your security system in minutes. - Get alarm notifications and remote control the system at anywhere and anytime. - Setting the timing time to arm/disarm the system. - Add/Delete the detector and key fob - Setting the type of the detectors such as burglar/burglar(24 hours)/fire/gas/water/help. - Follow the log of events HTZSAFE Security System Includes : Network Hub Series : HTZSAFE Hub has different network modes ( LAN / WiFi / 4G ), we have own servers in United States and Europe to ensure the stability of the system and the better customer experience. No monthly fees and contracts required to run the system. Solar&Battery Motion Detector Series: The wireless weather resistant motion detectors can be used to monitor&protect your outdoor/indoor property. Such as driveway, front porch, gate,pool,garage,shed and etc. Great for home, business,and office.The sensor will work properly at all the seasons. Working temperature range from -30 to 150 degree Fahrenheit. Solar Beam Sensors Series: The infrared sensing terminals of the solar beam sensors can be mounted up to 100 meters apart,and will send a wireless signal back to the wireless alarm receiver up to 1KM away anytime the intruder passes between the sensors;the solar sensor is powered by built-in lithium ion batteries those are recharged through the solar panels during the day, requires no wiring and easy to install.It is the ideal for all types of outdoor intrusion alarm application,such as driveway/fence tops/windows/etc. Other Wireless Accessories: Solar&Battery Smoke Detector, Gas Detector, Solar&Battery Door/Window Detector, Water Detector , Solar Siren , Panic Buttons, Wireless Signal Repeater and etc. Learn more about HTZSAFE: www.htzsafe.com If you have any questions, contact us at support@htzsafe.com

Screenshots

Smart9114 screens
HTZSAFE4 screens

Verdict

The call

The clearest difference is rating: Smart911 at 4.7 against HTZSAFE's 3.0. Smart911 also leads on review sentiment (37% vs 0%) and ratings volume (6.8K vs 2). HTZSAFE's advantage is update cadence (every 6 days vs every 4 months). On price, ads, in-app purchases and monetization model 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

Smart911 holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Smart911 has 6.8K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 37% of Smart911's written reviews are positive against 0% of HTZSAFE's.

UpkeepUpdate frequency

Smart911 ships an update every 4 months, HTZSAFE every 6 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 6 level
Smart911 versus HTZSAFE: the parameters behind the verdict, then further details
ParameterSmart911HTZSAFE
PriceFreeFree
Rating4.7 (6.8K ratings) — better3.0 (2 ratings)
Positive reviews36.6% of reviews — better0.0% of reviews
Number of ratings6.8K — better2
Update frequencyEvery 4 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS1615.6 — better
Further details — not scored
Size26 MB36 MB
Age rating4+4+
DeveloperRave Mobile Safety宇宏 王

Customer experience

Smart911

All ratings6,630 ratings
Positive94.5%
Neutral2.2%
Negative3.3%
Written reviews142 reviews
Positive36.6%
Neutral8.5%
Negative54.9%

HTZSAFE

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Smart911

Reported bugs

4 issues
  • Unable to confirm phone number and get verification code
  • Keeps signing users out and unable to log back in
  • Incorrect address formatting and inability to update location
  • Delayed or missing emergency alerts and notifications

Requested features

4 requests
  • Ability to adjust pin location on map
  • Option to select specific areas for alerts
  • Improved notification settings and customization
  • Support for apartment/building entry details

HTZSAFE

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Smart911

No in-app purchases

None

HTZSAFE

No in-app purchases

Questions

Is Smart911 free?
Smart911 is free to download, with no in-app purchases.
Is HTZSAFE free?
HTZSAFE is free to download, with no in-app purchases.
Which has better reviews, Smart911 or HTZSAFE?
Smart911 is rated higher. Smart911 averages 4.7 out of 5 from 6.8K ratings, while HTZSAFE averages 3.0 from 2 ratings.
Do Smart911 or HTZSAFE have ads?
Neither Smart911 nor HTZSAFE shows ads.
Which is updated more often, Smart911 or HTZSAFE?
Smart911 ships an update every 4 months, and HTZSAFE every 6 days. Most recently, Smart911 was updated on November 6, 2026 and HTZSAFE on November 3, 2026.

Other comparisons