# ISDR Test vs zPower

The clearest difference is device support: zPower at 3 against ISDR Test's —. ISDR Test's advantage is iOS requirement (11.2 vs 13.0). On price 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.

## The numbers

| Metric | ISDR Test | zPower |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zpower/id1622534495/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | — | Every 9 months |
| Monetization | — | Free |
| Size | 13 MB | 74 MB |
| Requires iOS | **11.2** | 13.0 |
| Devices | — | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Artur Rybak](https://appshunter.io/developer/1062686853) | [Shenzhen ZTE Software Co., Ltd.](https://appshunter.io/developer/1863573894) |

## What reviewers say

### ISDR Test

[App page](https://appshunter.io/ios/app/isdr-test/id1366658157)

**In-app purchases:** none


### zPower

[App page](https://appshunter.io/ios/app/zpower/id1622534495)

This app offers local maintenance services for energy products. It allows users to easily manage and operate their connected energy devices.

**Highlights:** Local maintenance services, Energy product management, Device operation, User-friendly interface, Supports iPhone, iPad, iPod

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

**In-app purchases:** none


## Frequently asked questions

### Is ISDR Test free?

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

### Is zPower free?

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

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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.*