Smart911 vs RetroSync
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Create Safety Profiles
- Share household information with 9-1-1
- Receive emergency alerts
- Customize notification types
- View medical and contact details
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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.
RetroSync
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Track your EBike, protect it from theft, and stay connected to every ride. The Retrospec app gives you real-time battery monitoring, GPS ride tracking, and anti-theft alerts, all from your phone. FEATURES ● Real-time battery monitor and range tracking ● GPS ride tracking and route history ● Anti-theft alerts and bike location monitoring ● Customizable pedal assist and ride settings ● Ride stats: speed, distance, and ride time ● Low battery notifications ● Compatible with Retrospec EBikes Simple setup, no learning curve. Connect your EBike and go.
Screenshots
Verdict
Smart911 and RetroSync are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | Smart911 | RetroSync |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (6.8K ratings) — better | — |
| Positive reviews | 36.6% of reviews | — |
| Number of ratings | 6.8K — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 16 | 15.6 — better |
| Further details — not scored | ||
| Size | 26 MB | 214 MB |
| Age rating | 4+ | 4+ |
| Developer | Rave Mobile Safety | Xander Bicycle Corporation |
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
RetroSync
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Smart911
No in-app purchases
RetroSync
No in-app purchases









