# GSL Smart ESS vs MaxPower Energy

GSL Smart ESS and MaxPower Energy are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

GSL Smart ESS ships an update every 9 months, MaxPower Energy every 13 months. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | GSL Smart ESS | MaxPower Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 months** | Every 13 months |
| Size | 37 MB | 59 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SHENZHEN GSL ENERGY CO LTD](https://appshunter.io/developer/1873857076) | [MaxPower](https://appshunter.io/developer/1842521610) |

## What reviewers say

### GSL Smart ESS

[App page](https://appshunter.io/ios/app/gsl-smart-ess/id6504597237)

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

**In-app purchases:** none


### MaxPower Energy

[App page](https://appshunter.io/ios/app/maxpower-energy/id6753102145)

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

**In-app purchases:** none


## Frequently asked questions

### Is GSL Smart ESS free?

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

### Is MaxPower Energy free?

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

### Do GSL Smart ESS or MaxPower Energy have ads?

Neither GSL Smart ESS nor MaxPower Energy shows ads.

### Which is updated more often, GSL Smart ESS or MaxPower Energy?

GSL Smart ESS ships an update every 9 months, and MaxPower Energy every 13 months. Most recently, GSL Smart ESS was updated on November 4, 2026 and MaxPower Energy on October 31, 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.*