# S vs Power Zero

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.

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.

## The numbers

| Metric | S | Power Zero |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (14 ratings)](https://appshunter.io/ios/app/s-miles-installer/id1544207772/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/power-zero/id1663188533/reviews) |
| Number of ratings | **14** | 2 |
| Positive reviews | **65.5% of reviews** | 40.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 208 MB | 149 MB |
| Requires iOS | **15.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Hoymiles Power Electronics Inc.](https://appshunter.io/developer/1219594358) | [毅 伍](https://appshunter.io/developer/1088814173) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-miles-installer/id1544207772)

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.

**Highlights:** Easy account monitoring, Visual installation guide, Rapid account configuration, Plant-level data, Module-level data, Alarm information

**Features:** macOS Compatibility

**In-app purchases:** none


### Power Zero

[App page](https://appshunter.io/ios/app/power-zero/id1663188533)

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.

**Highlights:** Real-time energy usage tracking, Energy production monitoring, Energy efficiency improvement suggestions, Remote smart home device control, Solar system status monitoring, Historical energy data

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is Power Zero free?

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

### Which has better reviews, S or Power Zero?

S is rated higher. S averages 4.2 out of 5 from 14 ratings, while Power Zero averages 3.0 from 2 ratings.

### Do S or Power Zero have ads?

Neither S nor Power Zero shows ads.

### Which is updated more often, S or Power Zero?

S ships an update monthly, and Power Zero every 6 weeks. Most recently, S was updated on October 2, 2026 and Power Zero on September 29, 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.*