SEM vs EG4 Connect
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SEM
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.
- 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
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SEM‑Meter is a smart energy monitor that installs directly in your power distribution box. It continuously tracks your household electricity consumption and delivers real‑time usage data straight to you—so you always know exactly what’s drawing power. Beyond live monitoring, SEM‑Meter offers powerful insights to help you manage energy more intelligently: Historical analysis – Review past usage patterns and identify conservation opportunities. Multi‑timeframe comparisons – Compare consumption second by second, day by day, week by week, month by month, and year over year. Bill savings – With clear visibility into your habits, you can make informed changes that lower your monthly electricity costs. Customizable tariff calculator – Includes a built‑in electricity fee gradient template, fully adjustable to match your local rate structure. Multi‑device management – Add and bind multiple SEM‑Meters to a single account, enabling unified monitoring and control across multiple properties or expanded setups. Whether you're an eco‑conscious homeowner or managing a growing portfolio, SEM‑Meter gives you the data and flexibility to take full command of your energy future.
EG4 Connect
Monitor the status, running data, and events of your solar and energy storage systems. This application provides real-time insights into your energy infrastructure.
- Monitor system status
- View running data
- Track events
- Energy storage system insights
- Solar system monitoring
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EG4Connect is the ultimate, easy‑to‑use monitoring and management app for EG4's Energy Storage Systems, including the FlexBOSS, 18kPV, 12000XP, GridBOSS, and more. Built with simplicity at its core, EG4Connect makes it effortless to set up, view, and manage your solar power system! Key Features Fast, Simple Commissioning - Set up newly installed EG4 systems in just a few steps with clear, guided workflows. Real‑Time System Monitoring - Instantly see your solar production, power flow, and system status through clean, intuitive dashboards. Simple Device Management - Easily adjust settings and manage your EG4 devices with straightforward controls designed for anyone to use. Grid Service Controls - Manage & monetize your EG4 equipment through EG4 Grid services - all while never leaving the app. EG4Connect removes complexity so you can focus on what matters most: keeping your energy system running smoothly with confidence and ease.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | SEM | EG4 Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (11 ratings) — better | 3.0 (21 ratings) |
| Positive reviews | 37.5% of reviews — better | 35.3% of reviews |
| Number of ratings | 11 | 21 — better |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Hangzhou Dashi Wisdom Technology Co., Ltd. | EG4 Electronics |
Customer experience
SEM
EG4 Connect
In-app purchases
SEM
No in-app purchases
EG4 Connect
No in-app purchases





