Comparison

911 Help SMS vs AC911

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

Head to head
About

911 Help SMS

This app provides quick access to emergency services and safety features. It allows users to text 911, know their location, and access important hotlines. Premium versions offer features like location retracing and emergency contact alerts.

Highlights
  • Text 911 with one tap
  • Know your current location
  • Access international emergency numbers
  • Suicide and domestic abuse hotlines
  • Location retracing
  • Emergency contact alerts
  • Walk safely feature
Read full description

911 Help SMS FREE Version: - Text 911 in with one simple tap - Know where you are before calling 911 - Know the emergency numbers in other countries - Suicide hotline, domestic abuse hotline, poison control number Pro Version - retrace to your last saved location to avoid getting lost - let others follow you during a walk - add emergency contacts -------------------------- Subscription Features 911 Help SMS FREE Version: - Text 911 in with one simple tap - Know where you are before calling 911 - Informs one family contact your location when you initiate a 911 call - Know the emergency numbers in other countries - Retrace your original location when lost - Suicide hotline, domestic abuse hotline, poison control number 911 Help SMS Lite 365: Includes up to 5 family contacts to send alerts to. Includes walk safely feature. Yearly Plan $0.99/year 911 Help SMS PRO: Includes up to 5 family contacts to send alerts to. Includes walk safely feature. One Time Payment $4.99 (no annual fee) Your subscription payment will be charged to your iTunes Account at the confirmation of your purchase. Your subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the subscription period. Your account will be charged for renewal within 24 hours prior to the end of the current subscription period, at the same price as the current subscription. You can manage your subscription and auto-renewal by going to your iTunes Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription. -------------------------- Continued use of GPS running in the background can dramatically decrease battery life. For Terms of Use, please refer to https://www.911helpsms.com/terms/

About

AC911

Features
Read full description

Reduce the Cost of Ownership AC911 can reduce your HVAC system’s operating costs. It provides precise temperature control, reducing energy usage. This smart thermostat app also ensures you get the services you need when you need them. It incorporates the following innovative features: • Remote monitoring • Predictive maintenance alerts • One-touch appointment booking • Service at the touch of a button A crisp LCD screen ensures all functions are easy to find and use. Is your home not comfortable or are energy costs going up? Use the onscreen service request feature to get prompt assistance from your local HVAC company. Get the Most Out of Your Climate Control System The AC911 app lets you control and monitor temperature, fan speed, and other functions via the main control panel or a smartphone. The future of home comfort and on-demand service, it delivers benefits including: • Smart Notifications: Receive instant notifications on changes in system performance so you can be proactive with maintenance. • Real-Time Monitoring: By monitoring the health of your HVAC system, AC911 can provide predictive maintenance alerts, which can prevent downtime and increase equipment lifespan. • Service Alerts: Receive notifications of service reminders, membership renewals, and more. Even receive custom messages from your HVAC provider. • Diagnostic Tools: An overview of system health and air quality are available at the touch of a button, at no extra cost. • System Health and Air Quality Alerts: If a problem with your climate control system or an indoor air quality issue is detected, you and your service provider will be automatically notified. Quick and Simple Installation The convenience of a AC911 thermostat begins even before you start using it. Swapping out an old unit is simple. A technician removes the old thermostat, mounts the new one, and connects the wiring. They’ll even help you set up the app. The new model’s settings are adjusted to meet your climate control requirements. It provides an instant response so you experience immediate comfort. Settings from the old thermostat instantly transfer over using the serial numbers of both units, so the process is fast, simple, and convenient. Forge an Instant Connection with Your HVAC Provider The AC911 thermostat and app display your HVAC company’s logo onscreen. Their help is available at the touch of a button, so you can put your trust and confidence in a local contractor. It’s not just a modern thermostat. AC911 is a direct link between you and your AC/heating services provider. Be a Part of the NuveNetwork Nuve has partnered with local HVAC companies so you benefit from new services and smart technologies. Real-time access to your system allows contractors to quickly diagnose and resolve system issues. This can result in fewer emergency calls and in-home visits, so you can save time and money. Get Started Today Getting a AC911 thermostat and app is easy. Once you’re ready, a representative will contact you and schedule an appointment. Visit the App Store or contact your HVAC dealer to learn more.

Screenshots

911 Help SMS1 screens
AC9114 screens

Verdict

The call

The clearest difference is in-app purchases: AC911 at none against 911 Help SMS's 2. AC911 also leads on device support (3 vs 1) and iOS requirement (13.0 vs 18.6). 911 Help SMS's advantage is update cadence (monthly vs every 3 months). On price and ads 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. 911 Help SMS sells 2 in-app purchases, starting at $0.99 per year. AC911 asks for nothing beyond the download.

UpkeepUpdate frequency

911 Help SMS ships an update monthly, AC911 every 3 months. The most recent releases landed on September 8, 2026 and September 9, 2026 respectively.

Scorecard4 real differences · 5 level
911 Help SMS versus AC911: the parameters behind the verdict, then further details
Parameter911 Help SMSAC911
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyMonthly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.613.0 — better
Further details — not scored
Size8 MB61 MB
Age rating17+4+
DeveloperSafety Now Solutions LLCNuve Home

In-app purchases

2 purchases

911 Help SMS

Subscriptions1
  • Annual Subscription$0.991 Year
One-time1
  • Pro Version$4.99
None

AC911

No in-app purchases

Questions

Is 911 Help SMS free?
911 Help SMS is free to download, with in-app purchases available.
Is AC911 free?
AC911 is free to download, with no in-app purchases.
Do 911 Help SMS or AC911 have ads?
Neither 911 Help SMS nor AC911 shows ads.
Which is updated more often, 911 Help SMS or AC911?
911 Help SMS ships an update monthly, and AC911 every 3 months. Most recently, 911 Help SMS was updated on September 8, 2026 and AC911 on September 9, 2026.

Other comparisons