# SMART ESS vs MarsES

The clearest difference is update cadence: SMART ESS at every 4 days against MarsES's every 4 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.

SMART ESS ships an update every 4 days, MarsES every 4 months. The most recent releases landed on September 8, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SMART ESS | MarsES |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 4 months |
| Size | 32 MB | 192 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [深圳市集智电子有限公司](https://appshunter.io/developer/1655111205) | [卓文 梁](https://appshunter.io/developer/1759304348) |

## What reviewers say

### SMART ESS

[App page](https://appshunter.io/ios/app/smart-ess/id6478477932)

**Features:** macOS Compatibility

**In-app purchases:** none


### MarsES

[App page](https://appshunter.io/ios/app/marses/id6578447579)

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

**In-app purchases:** none


## Frequently asked questions

### Is SMART ESS free?

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

### Is MarsES free?

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

### Do SMART ESS or MarsES have ads?

Neither SMART ESS nor MarsES shows ads.

### Which is updated more often, SMART ESS or MarsES?

SMART ESS ships an update every 4 days, and MarsES every 4 months. Most recently, SMART ESS was updated on September 8, 2026 and MarsES on September 10, 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.*