Sonar vs Vertrax Direct
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sonar
This app sends your location via loud Morse code and ultrasonic alarms in emergencies. It can also help you find your devices by sound in everyday situations.
- Morse code distress signal
- Ultrasonic alarm for K-9 units
- Location broadcasting
- Device finder by sound
- Emergency alerts
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Imagine yourself in the unfortunate situation where you are trapped under debris after an earthquake or a typhoon disaster or buried under meters of snow as a result of an avalanche. Your watch will most possibly be the only, within reach of access to press a button. Press it and your phone will be transmitting a loud Morse code, as an alarm, indicating your altitude or depth in case rescue is close looking out for you. Simultaneously, an ultrasonic alarm is activated so a K-9 rescue team can listen from bigger distance. As part of your everyday life, you can just use it to locate by sound your favorite device in home, office and outdoors!
Vertrax Direct
Monitor propane tank levels remotely using advanced sonar technology. This companion app provides real-time access to your tank's status from anywhere, ensuring you always know your supply.
- Sonar-based tank monitoring
- Real-time level visibility
- Remote access
- Propane supply management
- Companion app functionality
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The industry’s only true sonar based tank monitoring service. This companion app is to be used in conjunction with the Vertrax Tank Monitoring Service. This application allows the user to see the levels of propane in their tank at any time and anywhere.
Screenshots
Verdict
The clearest difference is iOS requirement: Sonar at 8.2 against Vertrax Direct's 15.1. On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sonar ships an update every 6 months, Vertrax Direct every 5 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.
| Parameter | Sonar | Vertrax Direct |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.5 (2 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | — | 2 — better |
| Update frequency | Every 6 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.2 — better | 15.1 |
| Further details — not scored | ||
| Size | 5 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Konstantinos Vogiatzakis | BlueStreak IoT LLC |
Customer experience
Sonar
Vertrax Direct
In-app purchases
Sonar
No in-app purchases
Vertrax Direct
No in-app purchases
