# U.Energy vs perfectum

The clearest difference is update cadence: perfectum at every 4 days against U.Energy's every 2 weeks. U.Energy's advantage is iOS requirement (12.0 vs 16). 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.

U.Energy ships an update every 2 weeks, perfectum every 4 days. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | U.Energy | perfectum |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Size | 59 MB | 101 MB |
| Requires iOS | **12.0** | 16 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Bekzod Bikinov](https://appshunter.io/developer/1746947367) | [Rubicon Wireless Communications IP OOO](https://appshunter.io/developer/1148581806) |

## What reviewers say

### U.Energy

[App page](https://appshunter.io/ios/app/uenergy/id6502834868)

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

**In-app purchases:** none


### perfectum

[App page](https://appshunter.io/ios/app/perfectum/id6771314299)

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

**In-app purchases:** none


## Frequently asked questions

### Is U.Energy free?

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

### Is perfectum free?

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

### Do U.Energy or perfectum have ads?

Neither U.Energy nor perfectum shows ads.

### Which is updated more often, U.Energy or perfectum?

U.Energy ships an update every 2 weeks, and perfectum every 4 days. Most recently, U.Energy was updated on November 4, 2026 and perfectum on November 5, 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.*