# MENRED ESS vs CST Energy

The clearest difference is update cadence: MENRED ESS at every 4 days against CST Energy's every 4 months. CST Energy's advantage is iOS requirement (12.0 vs 15.0). 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.

MENRED ESS ships an update every 4 days, CST Energy every 4 months. The most recent releases landed on November 12, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | MENRED ESS | CST Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 4 months |
| Size | 53 MB | 34 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Menred Group Co., Ltd](https://appshunter.io/developer/1459223152) | [亘能科技有限公司](https://appshunter.io/developer/1764914977) |

## What reviewers say

### MENRED ESS

[App page](https://appshunter.io/ios/app/menred-ess/id6449330017)

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

**In-app purchases:** none


### CST Energy

[App page](https://appshunter.io/ios/app/cst-energy/id6667113293)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MENRED ESS free?

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

### Is CST Energy free?

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

### Do MENRED ESS or CST Energy have ads?

Neither MENRED ESS nor CST Energy shows ads.

### Which is updated more often, MENRED ESS or CST Energy?

MENRED ESS ships an update every 4 days, and CST Energy every 4 months. Most recently, MENRED ESS was updated on November 12, 2026 and CST Energy on November 4, 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.*