# SmartESS vs S

The clearest difference is update cadence: SmartESS at monthly against S's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SmartESS ships an update monthly, S every 3 months. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | SmartESS | S |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (125 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews)** | — |
| Number of ratings | **125** | — |
| Positive reviews | 19.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | Free | — |
| Size | 198 MB | 59 MB |
| Requires iOS | 13.0 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Zhejiang Chisage New Energy Technology Co., Ltd](https://appshunter.io/developer/1748964853) |

## What reviewers say

### SmartESS

[App page](https://appshunter.io/ios/app/smartess/id1334656760)

Monitor your energy storage machine's status in real-time with this mobile application. It offers easy-to-understand data visualization, historical data access from anywhere, and displays information in multiple dimensions. The app is designed for efficient data transfer with minimal internet traffic usage.

**Highlights:** Real-time energy storage machine monitoring, Intelligent data visualization, Simple and easy-to-understand charts, Access historical data anytime, anywhere, Multi-dimensional data display, Low internet traffic usage

**Features:** macOS Compatibility

**In-app purchases:** none


### S

[App page](https://appshunter.io/ios/app/s-boost/id6477367283)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SmartESS free?

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

### Is S free?

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

### Do SmartESS or S have ads?

Neither SmartESS nor S shows ads.

### Which is updated more often, SmartESS or S?

SmartESS ships an update monthly, and S every 3 months. Most recently, SmartESS was updated on September 29, 2026 and S on September 23, 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.*