# SmartESS vs ZT Smart Battery

The clearest difference is update cadence: SmartESS at monthly against ZT Smart Battery's every 9 months. ZT Smart Battery's advantage is iOS requirement (11.0 vs 13.0). 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, ZT Smart Battery every 9 months. The most recent releases landed on November 2, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | SmartESS | ZT Smart Battery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (129 ratings)](https://appshunter.io/ios/app/smartess/id1334656760/reviews)** | — |
| Number of ratings | **129** | — |
| Positive reviews | 19.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Monetization | Free | — |
| Size | 198 MB | 41 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Shenzhen zetara power system Co.,LTD](https://appshunter.io/developer/1774419082) |

## 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


### ZT Smart Battery

[App page](https://appshunter.io/ios/app/zt-smart-battery/id6742175115)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SmartESS free?

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

### Is ZT Smart Battery free?

ZT Smart Battery is free to download, with no in-app purchases.

### Do SmartESS or ZT Smart Battery have ads?

Neither SmartESS nor ZT Smart Battery shows ads.

### Which is updated more often, SmartESS or ZT Smart Battery?

SmartESS ships an update monthly, and ZT Smart Battery every 9 months. Most recently, SmartESS was updated on November 2, 2026 and ZT Smart Battery on October 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*