S vs Power Zero
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
S
This app streamlines the installation and monitoring of distributed PV power plants. It offers an easy-to-use interface for setting up monitoring accounts and provides visual guidance for microinverter installation. Access plant-level and module-level power generation data, along with detailed alarm information for diagnostics.
- Easy account monitoring
- Visual installation guide
- Rapid account configuration
- Plant-level data
- Module-level data
- Alarm information
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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.
Power Zero
Monitor and control your smart energy devices remotely. Track energy usage and production in real-time, find ways to improve efficiency, and manage your solar system's status.
- Real-time energy usage tracking
- Energy production monitoring
- Energy efficiency improvement suggestions
- Remote smart home device control
- Solar system status monitoring
- Historical energy data
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Manage your Power Zero smart energy devices anytime, anywhere Maximize your Power Zero experience and save battery with the Power Zero App: · Track your energy usage and production in real time with Mobile Optimized Energy · Find ways to improve energy efficiency · Control your smart home devices and remotely manage your Power Zero energy usage · Monitor the status of your solar system in real-time as well as various historical status data
Screenshots
Verdict
The clearest difference is rating: S at 4.2 against Power Zero's 3.0. S also leads on review sentiment (66% vs 41%) and ratings volume (14 vs 2). 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.
S holds the better App Store score, 4.2 against 3.0. That said, the two scores are not equally well evidenced: S has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 66% of S's written reviews are positive against 41% of Power Zero's.
S ships an update monthly, Power Zero every 6 weeks. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.
| Parameter | S | Power Zero |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (14 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 65.5% of reviews — better | 40.9% of reviews |
| Number of ratings | 14 — better | 2 |
| Update frequency | Monthly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 208 MB | 149 MB |
| Age rating | 4+ | 12+ |
| Developer | Hoymiles Power Electronics Inc. | 毅 伍 |
Customer experience
S
Power Zero
In-app purchases
S
No in-app purchases
Power Zero
No in-app purchases
