# SmartESS vs EASUN

The clearest difference is review sentiment: SmartESS at 20% against EASUN's 0%. SmartESS also leads on update cadence (monthly vs every 2 months). On price, ads, in-app purchases and monetization model 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, EASUN every 2 months. The most recent releases landed on September 7, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | SmartESS | EASUN |
| --- | --- | --- |
| 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** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 198 MB | 38 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [祥梯 孟](https://appshunter.io/developer/1070155084) | [Nanchang Yepai Technology Co., Ltd.](https://appshunter.io/developer/1503296093) |

## 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


### EASUN

[App page](https://appshunter.io/ios/app/easun/id6514313618)

Monitor your battery's real-time status, including voltage, current, and internal resistance. Track historical data, compare individual cell performance, and receive alerts for critical conditions like over/under voltage and temperature. This system helps optimize lithium battery health and lifespan.

**Highlights:** Real-time voltage, current, power monitoring, Instrument panel and numerical displays, Chart timeline for historical data, Cell comparison and voltage difference, Cell balance display, Temperature and fault alarms, Single battery voltage and alarm status

**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 EASUN free?

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

### Do SmartESS or EASUN have ads?

Neither SmartESS nor EASUN shows ads.

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

SmartESS ships an update monthly, and EASUN every 2 months. Most recently, SmartESS was updated on September 7, 2026 and EASUN on September 25, 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.*