# Udan HESS vs Power

The clearest difference is update cadence: Power at every 5 days against Udan HESS's every 3 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.

Udan HESS ships an update every 3 months, Power every 5 days. The most recent releases landed on October 13, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Udan HESS | Power |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 days** |
| Size | 33 MB | 53 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Anhui Udan Technology Co., Ltd.](https://appshunter.io/developer/1593792520) | [Hangzhou Weimu Technology Co., Ltd.](https://appshunter.io/developer/1623279086) |

## What reviewers say

### Udan HESS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Power

[App page](https://appshunter.io/ios/app/power-help/id6745493743)

**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 Power free?

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

### Do Udan HESS or Power have ads?

Neither Udan HESS nor Power shows ads.

### Which is updated more often, Udan HESS or Power?

Udan HESS ships an update every 3 months, and Power every 5 days. Most recently, Udan HESS was updated on October 13, 2026 and Power on October 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*