# Powertrack III vs E

Powertrack III and E are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 28, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Powertrack III | E |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 25 MB | 45 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [UNIONPOWER](https://appshunter.io/developer/1101633509) | [E TRUST SOLE CO.,LTD](https://appshunter.io/developer/1825288052) |

## What reviewers say

### Powertrack III

[App page](https://appshunter.io/ios/app/powertrack-iii/id1332212914)

**Features:** macOS Compatibility

**In-app purchases:** none


### E

[App page](https://appshunter.io/ios/app/e-trust/id6748334263)

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

**In-app purchases:** none


## Frequently asked questions

### Is Powertrack III free?

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

### Is E free?

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

### Do Powertrack III or E have ads?

Neither Powertrack III nor E shows ads.

### Which is updated more often, Powertrack III or E?

Powertrack III ships an update monthly, and E monthly. Most recently, Powertrack III was updated on September 28, 2026 and E on September 21, 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.*