# PowerMeter vs LED System

The clearest difference is update cadence: LED System at weekly against PowerMeter's every 2 months. PowerMeter's advantage is iOS requirement (13.0 vs 15). 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.

PowerMeter ships an update every 2 months, LED System weekly. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | PowerMeter | LED System |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 1 MB | 64 MB |
| Requires iOS | **13.0** | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Chicony power Technology Co.,Ltd.](https://appshunter.io/developer/1186590918) | [深圳市流明电子有限公司](https://appshunter.io/developer/1031986405) |

## What reviewers say

### PowerMeter

[App page](https://appshunter.io/ios/app/powermeter/id1456986633)

**Features:** macOS Compatibility

**In-app purchases:** none


### LED System

[App page](https://appshunter.io/ios/app/led-system/id6670427885)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PowerMeter free?

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

### Is LED System free?

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

### Do PowerMeter or LED System have ads?

Neither PowerMeter nor LED System shows ads.

### Which is updated more often, PowerMeter or LED System?

PowerMeter ships an update every 2 months, and LED System weekly. Most recently, PowerMeter was updated on September 13, 2026 and LED System on September 15, 2026.

---

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