# Sonar vs Vertrax Direct

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.

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.

## The numbers

| Metric | Sonar | Vertrax Direct |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.5 (2 ratings)](https://appshunter.io/ios/app/vertrax-direct/id1482080265/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 5 MB | 46 MB |
| Requires iOS | **8.2** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Konstantinos Vogiatzakis](https://appshunter.io/developer/818619540) | [BlueStreak IoT LLC](https://appshunter.io/developer/1616103988) |

## What reviewers say

### Sonar

[App page](https://appshunter.io/ios/app/sonar-emergency-button-sending-your-position-in-morse-code/id975894428)

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.

**Highlights:** Morse code distress signal, Ultrasonic alarm for K-9 units, Location broadcasting, Device finder by sound, Emergency alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### Vertrax Direct

[App page](https://appshunter.io/ios/app/vertrax-direct/id1482080265)

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.

**Highlights:** Sonar-based tank monitoring, Real-time level visibility, Remote access, Propane supply management, Companion app functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sonar free?

Sonar is free to download, with no in-app purchases.

### Is Vertrax Direct free?

Vertrax Direct is free to download, with no in-app purchases.

### Do Sonar or Vertrax Direct have ads?

Neither Sonar nor Vertrax Direct shows ads.

### Which is updated more often, Sonar or Vertrax Direct?

Sonar ships an update every 6 months, and Vertrax Direct every 5 months. Most recently, Sonar was updated on October 16, 2026 and Vertrax Direct on October 13, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*