# WANJIN ESS vs FlashEnergy

The clearest difference is update cadence: FlashEnergy at fortnightly against WANJIN ESS's every 6 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.

WANJIN ESS ships an update every 6 months, FlashEnergy fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | WANJIN ESS | FlashEnergy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Size | 24 MB | 76 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) | [深圳有光智电技术有限公司](https://appshunter.io/developer/1816659560) |

## What reviewers say

### WANJIN ESS

[App page](https://appshunter.io/ios/app/wanjin-ess/id6478657145)

**Features:** macOS Compatibility

**In-app purchases:** none


### FlashEnergy

[App page](https://appshunter.io/ios/app/flashenergy/id6747492817)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is WANJIN ESS free?

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

### Is FlashEnergy free?

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

### Do WANJIN ESS or FlashEnergy have ads?

Neither WANJIN ESS nor FlashEnergy shows ads.

### Which is updated more often, WANJIN ESS or FlashEnergy?

WANJIN ESS ships an update every 6 months, and FlashEnergy fortnightly. Most recently, WANJIN ESS was updated on October 25, 2026 and FlashEnergy on October 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.*