# Heel Firmware Update vs Necto Sensor

The clearest difference is update cadence: Necto Sensor at every 6 weeks against Heel Firmware Update's every 4 months. Necto Sensor also leads on iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Heel Firmware Update ships an update every 4 months, Necto Sensor every 6 weeks. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Heel Firmware Update | Necto Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (6 ratings)](https://appshunter.io/ios/app/necto-sensor/id6596772851/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 19 MB | 32 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Fleetwood Group, Inc.](https://appshunter.io/developer/971753915) | [YT INNOVATIONS LLC](https://appshunter.io/developer/1760589427) |

## What reviewers say

### Heel Firmware Update

[App page](https://appshunter.io/ios/app/heel-firmware-update/id6459538371)

**In-app purchases:** none


### Necto Sensor

[App page](https://appshunter.io/ios/app/necto-sensor/id6596772851)

This app allows real-time remote monitoring of temperature, humidity, and power status using a cellular-connected sensor. It sends customizable alerts for critical environmental changes, providing peace of mind for property conditions.

**Highlights:** Real-time temperature monitoring, Real-time humidity monitoring, Power status monitoring, Cellular network operation (no Wi-Fi needed), Customizable alert thresholds, Device registration and setup

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

**In-app purchases:** none


## Frequently asked questions

### Is Heel Firmware Update free?

Heel Firmware Update is free to download, with no in-app purchases.

### Is Necto Sensor free?

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

### Do Heel Firmware Update or Necto Sensor have ads?

Neither Heel Firmware Update nor Necto Sensor shows ads.

### Which is updated more often, Heel Firmware Update or Necto Sensor?

Heel Firmware Update ships an update every 4 months, and Necto Sensor every 6 weeks. Most recently, Heel Firmware Update was updated on September 23, 2026 and Necto Sensor on September 19, 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.*