# Udan HESS vs CTE Energy

The clearest difference is iOS requirement: Udan HESS at 13.0 against CTE Energy's 17.6. 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.

Udan HESS ships an update every 3 months, CTE Energy every 4 months. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Udan HESS | CTE Energy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Size | 33 MB | 53 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) | [仁义 樊](https://appshunter.io/developer/1406210820) |

## What reviewers say

### Udan HESS

[App page](https://appshunter.io/ios/app/udan-hess/id6443758347)

**Features:** macOS Compatibility

**In-app purchases:** none


### CTE Energy

[App page](https://appshunter.io/ios/app/cte-energy/id6502897105)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Udan HESS free?

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

### Is CTE Energy free?

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

### Do Udan HESS or CTE Energy have ads?

Neither Udan HESS nor CTE Energy shows ads.

### Which is updated more often, Udan HESS or CTE Energy?

Udan HESS ships an update every 3 months, and CTE Energy every 4 months. Most recently, Udan HESS was updated on October 13, 2026 and CTE Energy on October 11, 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.*