# SEM vs EG4 Connect

The clearest difference is rating: SEM at 3.4 against EG4 Connect's 3.0. SEM also leads on update cadence (every 2 weeks vs every 2 months). On price, review sentiment, ratings volume and ads there is nothing between them.

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

SEM holds the better App Store score, 3.4 against 3.0. Both are backed by a comparable volume of ratings — 11 and 21 respectively. Written reviews point the same way: 38% of SEM's written reviews are positive against 35% of EG4 Connect's.

SEM ships an update every 2 weeks, EG4 Connect every 2 months. The most recent releases landed on September 9, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | SEM | EG4 Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (11 ratings)](https://appshunter.io/ios/app/sem-meter/id6468902139/reviews)** | [3.0 (21 ratings)](https://appshunter.io/ios/app/eg4-connect/id6752791573/reviews) |
| Number of ratings | 11 | **21** |
| Positive reviews | **37.5% of reviews** | 35.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 31 MB | 38 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Dashi Wisdom Technology Co., Ltd.](https://appshunter.io/developer/1822219570) | [EG4 Electronics](https://appshunter.io/developer/1840964233) |

## What reviewers say

### SEM

[App page](https://appshunter.io/ios/app/sem-meter/id6468902139)

This utility app monitors your household power consumption in real-time, providing historical data and comparisons to help you save on electricity bills. It supports managing multiple devices and customizing electricity fee calculations.

**Highlights:** Real-time power usage monitoring, Historical energy use tracking, Second-to-second, day-to-day, week-to-week, month-to-month, and year-to-year comparisons, Electricity fee gradient calculation, Customizable fee templates, Multiple device management

**In-app purchases:** none


### EG4 Connect

[App page](https://appshunter.io/ios/app/eg4-connect/id6752791573)

Monitor the status, running data, and events of your solar and energy storage systems. This application provides real-time insights into your energy infrastructure.

**Highlights:** Monitor system status, View running data, Track events, Energy storage system insights, Solar system monitoring

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

**In-app purchases:** none


## Frequently asked questions

### Is SEM free?

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

### Is EG4 Connect free?

EG4 Connect is free to download, with no in-app purchases.

### Which has better reviews, SEM or EG4 Connect?

SEM is rated higher. SEM averages 3.4 out of 5 from 11 ratings, while EG4 Connect averages 3.0 from 21 ratings.

### Do SEM or EG4 Connect have ads?

Neither SEM nor EG4 Connect shows ads.

### Which is updated more often, SEM or EG4 Connect?

SEM ships an update every 2 weeks, and EG4 Connect every 2 months. Most recently, SEM was updated on September 9, 2026 and EG4 Connect on August 16, 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.*