# CM Sensor vs Tank Sensor by EchoCheck

The clearest difference is review sentiment: CM Sensor at 25% against Tank Sensor by EchoCheck's 0%. CM Sensor also leads on ratings volume (17 vs 2). Tank Sensor by EchoCheck's advantage is update cadence (every 3 weeks vs every 3 months) and rating (3.0 vs 2.8). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tank Sensor by EchoCheck holds the better App Store score, 3.0 against 2.8. That said, the two scores are not equally well evidenced: CM Sensor has 17 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 25% of CM Sensor's written reviews are positive against 0% of Tank Sensor by EchoCheck's, so the app with the better star average is not the one people write more warmly about.

CM Sensor ships an update every 3 months, Tank Sensor by EchoCheck every 3 weeks. The most recent releases landed on September 9, 2026 and July 23, 2026 respectively.

## The numbers

| Metric | CM Sensor | Tank Sensor by EchoCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.8 (17 ratings)](https://appshunter.io/ios/app/cm-sensor/id1474999908/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/tank-sensor-by-echocheck/id6466607919/reviews)** |
| Number of ratings | **17** | 2 |
| Positive reviews | **25.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 32 MB | 42 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Church Mutual Insurance Company, S.I.](https://appshunter.io/developer/1306916950) | [Thincke Electronic Technology Co., Ltd.](https://appshunter.io/developer/1681561680) |

## What reviewers say

### CM Sensor

[App page](https://appshunter.io/ios/app/cm-sensor/id1474999908)

This utility app connects users with their insurance provider. It offers features for setting up smart bases and sensors to enhance communication and monitoring.

**Highlights:** Insurance company contact, Smart Base setup, Sensor configuration, Enhanced communication

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Tank Sensor by EchoCheck

[App page](https://appshunter.io/ios/app/tank-sensor-by-echocheck/id6466607919)

This utility app provides instant information about your propane tank's gas level. It connects wirelessly to a sensor on your tank, allowing you to monitor fuel status remotely.

**Highlights:** Instant gas level monitoring, Wireless sensor connection, Remote fuel status tracking, Propane tank level alerts

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CM Sensor free?

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

### Is Tank Sensor by EchoCheck free?

Tank Sensor by EchoCheck is free to download, with no in-app purchases.

### Which has better reviews, CM Sensor or Tank Sensor by EchoCheck?

Tank Sensor by EchoCheck is rated higher. CM Sensor averages 2.8 out of 5 from 17 ratings, while Tank Sensor by EchoCheck averages 3.0 from 2 ratings.

### Do CM Sensor or Tank Sensor by EchoCheck have ads?

Neither CM Sensor nor Tank Sensor by EchoCheck shows ads.

### Which is updated more often, CM Sensor or Tank Sensor by EchoCheck?

CM Sensor ships an update every 3 months, and Tank Sensor by EchoCheck every 3 weeks. Most recently, CM Sensor was updated on September 9, 2026 and Tank Sensor by EchoCheck on July 23, 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.*