# ESS Energy vs EASUN

The clearest difference is iOS requirement: EASUN at 12.0 against ESS Energy's 16.6. 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.

ESS Energy ships an update every 5 weeks, EASUN every 2 months. The most recent releases landed on September 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ESS Energy | EASUN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 54 MB | 38 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [仁义 樊](https://appshunter.io/developer/1406210820) | [Nanchang Yepai Technology Co., Ltd.](https://appshunter.io/developer/1503296093) |

## What reviewers say

### ESS Energy

[App page](https://appshunter.io/ios/app/ess-energy/id1642888340)

**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 ESS Energy free?

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

### Is EASUN free?

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

### Do ESS Energy or EASUN have ads?

Neither ESS Energy nor EASUN shows ads.

### Which is updated more often, ESS Energy or EASUN?

ESS Energy ships an update every 5 weeks, and EASUN every 2 months. Most recently, ESS Energy was updated on September 10, 2026 and EASUN on October 24, 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.*