# Smartap vs Tank Sensor by EchoCheck

The clearest difference is review sentiment: Smartap at 50% against Tank Sensor by EchoCheck's 0%. Tank Sensor by EchoCheck's advantage is rating (2.0 vs 1.0) and update cadence (every 3 weeks vs every 34 months). 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, 2.0 against 1.0. That said, the two scores are not equally well evidenced: Tank Sensor by EchoCheck has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of Smartap'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.

Smartap ships an update every 34 months, Tank Sensor by EchoCheck every 3 weeks. The most recent releases landed on October 10, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Smartap | Tank Sensor by EchoCheck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/smartap-nfc-tools/id6461724542/reviews) | **[2.0 (5 ratings)](https://appshunter.io/ios/app/tank-sensor-by-echocheck/id6466607919/reviews)** |
| Number of ratings | 1 | **5** |
| Positive reviews | **50.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 34 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 17 MB | 42 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Safeair Media Inc.](https://appshunter.io/developer/1779816071) | [Thincke Electronic Technology Co., Ltd.](https://appshunter.io/developer/1681561680) |

## What reviewers say

### Smartap

[App page](https://appshunter.io/ios/app/smartap-nfc-tools/id6461724542)

Easily read and write information to NFC tags. This utility allows for quick data transfer and interaction with NFC-enabled devices.

**Highlights:** Read NFC tags, Write NFC tags, NFC data interaction, NFC tag management

**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 Smartap free?

Smartap 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, Smartap or Tank Sensor by EchoCheck?

Tank Sensor by EchoCheck is rated higher. Smartap averages 1.0 out of 5 from 1 ratings, while Tank Sensor by EchoCheck averages 2.0 from 5 ratings.

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

Neither Smartap nor Tank Sensor by EchoCheck shows ads.

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

Smartap ships an update every 34 months, and Tank Sensor by EchoCheck every 3 weeks. Most recently, Smartap was updated on October 10, 2026 and Tank Sensor by EchoCheck on October 20, 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.*