# Surge Guard vs Necto Sensor

The clearest difference is review sentiment: Necto Sensor at 100% against Surge Guard's 11%. Necto Sensor also leads on rating (4.7 vs 1.5). Surge Guard's advantage is ratings volume (73 vs 6) and iOS requirement (11.0 vs 13.0). 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.

Necto Sensor holds the better App Store score, 4.7 against 1.5. That said, the two scores are not equally well evidenced: Surge Guard has 73 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 11% of Surge Guard's written reviews are positive against 100% of Necto Sensor's.

Surge Guard ships an update monthly, Necto Sensor every 6 weeks. The most recent releases landed on August 20, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Surge Guard | Necto Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.5 (73 ratings)](https://appshunter.io/ios/app/surge-guard/id1622872744/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/necto-sensor/id6596772851/reviews)** |
| Number of ratings | **73** | 6 |
| Positive reviews | 11.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 29 MB | 32 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Southwire Company](https://appshunter.io/developer/440338423) | [YT INNOVATIONS LLC](https://appshunter.io/developer/1760589427) |

## What reviewers say

### Surge Guard

[App page](https://appshunter.io/ios/app/surge-guard/id1622872744)

Monitor your RV's power status remotely. Get real-time error alerts, estimated restoration times, and track your power history. Access troubleshooting guides for easy problem-solving on the go.

**Highlights:** Monitor RV power, Real-time error alerts, Power restoration estimates, Error history tracking, Troubleshooting guides

**In-app purchases:** none

**What reviewers like**

- 👍 Works when firmware updated
- 👍 Convenient status view inside RV
- 👍 Responsive support team (for some)

**What reviewers complain about**

- 🐛 App crashes on pairing
- 🐛 Bluetooth connection issues
- 🐛 Incorrect/no power data displayed
- 🐛 RV shows as powered down
- 🐛 Firmware update required (inconvenient)

**Reported bugs**

- App crashes when attempting to connect
- Bluetooth won't connect
- Device not connecting to app
- App shows RV as powered down
- App shows no power usage or data

**Requested features**

- Log energy use by day/date
- Note power interruptions without new session
- Display date and time for detected issues in history log
- App can update firmware
- Record and display history of monitored parameters


### 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 Surge Guard free?

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

### Is Necto Sensor free?

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

### Which has better reviews, Surge Guard or Necto Sensor?

Necto Sensor is rated higher. Surge Guard averages 1.5 out of 5 from 73 ratings, while Necto Sensor averages 4.7 from 6 ratings.

### Do Surge Guard or Necto Sensor have ads?

Neither Surge Guard nor Necto Sensor shows ads.

### Which is updated more often, Surge Guard or Necto Sensor?

Surge Guard ships an update monthly, and Necto Sensor every 6 weeks. Most recently, Surge Guard was updated on August 20, 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.*