# SEM-Meter > Monitors household power usage and provides historical data for cost savings. (iPhone/iPad app by Hangzhou Dashi Wisdom Technology Co., Ltd..) - Source: https://appshunter.io/ios/app/sem-meter/id6468902139 (this page in markdown: same URL + `.md`) - Developer: [Hangzhou Dashi Wisdom Technology Co., Ltd.](https://appshunter.io/developer/1822219570) - Category: Utilities - Price: Free - Rating: 3.60/5 from 10 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 31 MB - Languages: American English, Chinese (Simplified, China) - Released: 2023-10-10 - Data updated: 2026-08-26 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/sem-meter/id6468902139/reviews.md ## What is SEM? SEM-Meter installed in your power distribution box, monitors your household power usage and reports the power usage to you in real time. SEM-Meter also provides some valuable features： Historical energy use and conservation; Comparisons second-to-second, day-to-day, week-to-week, month-to-month, and year-to-year； Help you save on electricity bills. Add the electricity fee gradient calculation template and support customization. By adding device binding, multiple device data can be managed uniformly to meet the needs of the extended family. ## Key features - 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 ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/sem-meter/id6468902139/reviews.md ### 4/5 — Apple login failed *2026-06-09* After latest update I can't login using Apple authorization ### 1/5 — Loses login ID *2026-06-06* Works great until it won’t login with Apple anymore 👎 ### 3/5 — It’s ok *2025-12-12* K ### 1/5 — Doesent work *2025-12-10* App stopped working. There is no support. Basically wasted $250 for an energy meter that’s a brick without the software. ### 3/5 — Kinda works *2025-09-28* I love the idea of this and this app does give useful information. However, I find at least once a week often times more, the app bugs out and will double count some of my appliances kilowatt hour usage which basically makes whatever days data unusable cause I can’t trust it. The days it’s right I have double checked with my energy provider and we are near spot on, but the days it bugs is infuriating. Also, it will sometimes randomly disconnect itself from the internet. Not sure if that is related to the data issues, but I’ve dig into it and I have no problems with any other device WiFi wise so looks like it is the hardware or software of this product. ### 5/5 — Works well *2025-05-09* This app can coexist with Home Assistant if they share the some MQTT server. Works well for its purpose. There are some minor bugs. For example when you edit the circuit type, the multiplier will revert back to 1.00 even you have set it to 2.00 before. ### 4/5 — Minor Bugs but Works *2025-03-16* I had to re-enter the circuit information but after that it worked fine. ## Frequently asked questions about SEM ### What is SEM-Meter? SEM-Meter is a utility app designed to monitor your household's real-time power usage. It provides historical data and comparisons to help you understand and reduce your electricity consumption. ### How does SEM-Meter help save money? By tracking your energy use and offering detailed comparisons, SEM-Meter helps you identify patterns and areas for conservation. It also includes customizable electricity fee calculations to better understand your costs. ### Can SEM-Meter manage multiple homes or devices? Yes, SEM-Meter allows for device binding, enabling uniform management of data from multiple devices. This feature is useful for managing the electricity needs of an extended family or multiple properties. ### What kind of comparisons does SEM-Meter offer? SEM-Meter provides detailed comparisons of your power usage across various timeframes, including second-to-second, day-to-day, week-to-week, month-to-month, and year-to-year. ### Is SEM-Meter available on Android devices? Based on the provided data, SEM-Meter is currently supported on iPhone and iPod devices. Information regarding Android compatibility is not available. ### How often is SEM-Meter updated? The latest version of SEM-Meter is 1.5.9, last updated on March 3, 2026. This indicates a recent update, suggesting ongoing development and support for the application. ### What is the user rating for SEM-Meter? SEM-Meter has a user rating of 3.7 stars based on 7 ratings. This suggests a generally positive but mixed reception from its current user base. ### Does SEM-Meter have ads? No, SEM-Meter does not contain advertisements. The app is free to download and use without any ad interruptions. ## Version history (last 5 releases) ### 1.6.7 — 2026-07-31 1.Bug fixes and performance improvements ### 1.6.6 — 2026-07-02 Bug fixes and performance improvements ### 1.6.5 — 2026-06-04 Bug fixes and performance improvements ### 1.6.4 — 2026-05-22 Bug fixes and performance improvements ### 1.6.3 — 2026-04-29 Bug fixes and performance improvements ## Apps similar to SEM | App | Rating | Price | Category | | --- | --- | --- | --- | | [Breaker Box: Panel Directory](https://appshunter.io/ios/app/breaker-box-panel-directory/id1459288663) | 4.4 (98) | Free | Utilities | | [ANCEL BM300 Pro](https://appshunter.io/ios/app/ancel-bm300-pro/id6476840644) | 2.8 (21) | Free | Utilities | | [Signal GH](https://appshunter.io/ios/app/signal-gh/id289580769) | 4.6 (539) | $2.99 | Utilities | | [Viewu](https://appshunter.io/ios/app/viewu/id6502717790) | 5.0 (7) | Free | Utilities | | [Inhab Energy](https://appshunter.io/ios/app/inhab-energy/id6473788309) | 5.0 (5) | Free | Utilities | | [EG4 Connect](https://appshunter.io/ios/app/eg4-connect/id6752791573) | 3.0 (21) | Free | Utilities | ## More apps by Hangzhou Dashi Wisdom Technology Co., Ltd. - [RV LEVELER PLUS](https://appshunter.io/ios/app/rv-leveler-plus/id1524733083) - [T-Meter](https://appshunter.io/ios/app/t-meter/id1566693372) - [FE-Shunt](https://appshunter.io/ios/app/fe-shunt/id1593575892) - [TBD-flowmeter](https://appshunter.io/ios/app/tbd-flowmeter/id1632862012) - [Tumblewid](https://appshunter.io/ios/app/tumblewid/id1673668247) - [Pitking](https://appshunter.io/ios/app/pitking/id6444714368) All apps by Hangzhou Dashi Wisdom Technology Co., Ltd.: https://appshunter.io/developer/1822219570 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*