IAMMETER vs S
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IAMMETER
Monitor your home's electricity consumption in real-time. Track energy flow, grid import/export, and solar PV production. Integrate with popular home automation systems.
- Real-time electricity usage tracking
- Monitor energy flow
- Solar PV system production monitoring
- Grid import/export tracking
- Home automation integration
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This app is a tool of IAMMETER (https://www.iammeter.com), an online energy monitoring system developed by us. By installing our WiFi energy meter and running this app, you can 1. Track your home electricity usage in real-time. To learn more, please visit https://www.iammeter.com/doc/iammeter/residential_electricity_system.html; 2. Monitor the entire energy flow, the energy imported from/exported to grid and solar PV system production, for you solar PV system. To learn more, please visit https://www.iammeter.com/doc/iammeter/monitor-your-solar-system.html; 3. Integrate with some Home Automation system, such as Home Assistant, openHAB, NodeRED, etc. To learn more, please visit https://www.iammeter.com/doc/iammeter/home_automation.html. To buy our WiFi energy meters, please visit our Aliexpress Store https://devicebit-iot.aliexpress.com. For more details, please visit https://www.iammeter.com Customer Support: Email: support@devicebit.com Mobile: +86 13911890238
S
This app helps installers of distributed PV power plants manage accounts and provides visual guides for microinverter installation. It offers rapid configuration, power generation data, and detailed alarm information for commissioning and diagnostics.
- Account monitoring
- Visual installation guide
- Microinverter configuration
- Power generation data
- Module-level data
- Alarm information
- Commissioning & diagnostics
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S-miles Installer is a mobile application developed by Hoymiles especially for installers of distributed PV power plants. It provides an EASY-TO-USE procedure for monitoring accounts and a visual physical layout guide for the installation of microinverters, which helps installers configure monitoring accounts rapidly, and provides installers power generation data on both plant-level & module-level as well as detailed alarm information about the power plant for commissioning & diagnostics.
Screenshots
Verdict
The clearest difference is review sentiment: IAMMETER at 100% against S's 66%. On price, update cadence, ads and in-app purchases 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.
IAMMETER ships an update every 6 weeks, S monthly. The most recent releases landed on October 14, 2026 and October 30, 2026 respectively.
| Parameter | IAMMETER | S |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (15 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 65.8% of reviews |
| Number of ratings | — | 15 — better |
| Update frequency | Every 6 weeks | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 224 MB |
| Age rating | 4+ | 4+ |
| Developer | Beijing Lewei IoT Technologies Co.,Ltd. | Hoymiles Power Electronics Inc. |
Customer experience
IAMMETER
S
In-app purchases
IAMMETER
No in-app purchases
S
No in-app purchases
