# PowerProbe

> Vehicle circuit tester companion app with real-time diagnostics and oscilloscope mode. (iPhone/iPad app by MGL APPA CORPORATION.)

- Source: https://appshunter.io/ios/app/powerprobe/id1643521445 (this page in markdown: same URL + `.md`)
- Developer: [MGL APPA CORPORATION](https://appshunter.io/developer/1121102475)
- Category: Utilities, Productivity
- Price: Free
- Rating: 2.57/5 from 7 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 37 MB
- Languages: English
- Released: 2022-09-08
- Data updated: 2026-06-05
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/powerprobe/id1643521445/reviews.md

## What is PowerProbe?

With the PowerProbe app users can get connected to the PowerProbe Maestro, which is a last generation circuit tester used to develop electrical diagnosis in the vehicles.

The PowerProbe app shows the same readings that can be seen in the Maestro display, as well as carry out additional functions, as oscilloscope mode which allows to see different curves on the smartphone or tablet display in real time, being much more practical and intuitive than the numerical results.

Maestro is the top of our professional tool range develop for an advance vehicle diagnosis. With powerful multimeter functions, advanced diagnostic modes, easy to read LCD display, and a new rugged dust and water resistant housing, the Maestro has been designed to give years of trouble free testing. Moreover, the PowerProbe app expands the tool capabilities and give the user access to answers that are required.

Using the PowerProbe app, users can get the most out of the circuit tester Maestro.The following are the functions that can be displayed on the PowerProbe app:

• DC voltmeter with the capability of applying battery supplied voltage or ground

• AC voltmeter: TRMS, peak-to peak /min/max, frequency, duty cycle

• Resistance testing with a live or unloaded circuit

• Fuel-injector test mode

• EZ Learning videos teach the end-users how to complete the most common applications

Besides those functionalities, the PowerProbe app gives the users additional value, such as data register, allowing the user to save the readings in the smartphone or tablet internal memory and share readings with other people in an easy and quick way.

Another of the great functions of the app is the oscilloscope mode, which allows to see the curves on the smartphone or tablet display in real time, being much more practical and intuitive than the numerical results. Using the oscilloscope mode, users can realize much easier about the performance of the vehicle, than using the numerical results that can be seen on the Maestro.

## Key features

- Real-time circuit readings
- Oscilloscope mode
- DC and AC voltmeter
- Resistance testing
- Fuel-injector test mode
- Data saving and sharing
- EZ Learning videos

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/powerprobe/id1643521445/reviews.md

### 5/5 — PowerProbe app needs an update please.

*2025-10-17*

The knowledge base doesn’t connect to host. It’s a dark screen. Also the injector graph doesn’t match the graph on the maestro. Maestro graph is perfect but small. Please update, we need it.

### 1/5 — App is unfinished garbage

*2023-03-03*

Not very useful at all in its current form. I would not consider it value added to the overpriced maestro.

### 5/5 — Great and useful app

*2023-03-03*

This app works flawlessly with my Maestro on my ipad. I love having the large display and the ability to move around the vehicle and still see my readings.

### 1/5 — useless app

*2022-12-30*

completely useless app no functions that are even worth using 
absolutely unintuitive ui
not even a firmware upgrade option how sad 

because of this junk software you getting your powerprobe back

## Frequently asked questions about PowerProbe

### What is PowerProbe used for?

PowerProbe is an app designed to connect with the PowerProbe Maestro circuit tester. It provides advanced electrical diagnosis for vehicles, displaying real-time readings and offering functions like an oscilloscope mode.

### Does PowerProbe work on Android devices?

Based on the provided data, PowerProbe is currently supported on iPhone and iPod devices. Information regarding Android compatibility is not available.

### How often is PowerProbe updated?

The latest version of PowerProbe is 1.0.4, and it was last updated on June 1, 2023. This indicates a recent update, suggesting ongoing development and support.

### What are the main diagnostic functions of PowerProbe?

PowerProbe offers DC and AC voltmeter functions (TRMS, peak-to-peak, min/max, frequency, duty cycle), resistance testing, and a fuel-injector test mode. It also includes an oscilloscope mode for visualizing curves in real-time.

### Can I save and share my diagnostic readings with PowerProbe?

Yes, PowerProbe allows users to register data, enabling them to save readings in their smartphone or tablet's internal memory. This data can then be shared easily and quickly with others.

### Is PowerProbe suitable for beginners?

The app includes EZ Learning videos designed to teach end-users how to complete the most common applications. This feature suggests it aims to be accessible for those learning vehicle diagnosis.

### What is the user rating for PowerProbe?

PowerProbe has a user rating of 2.2 stars from 6 ratings. This indicates that current users have mixed to negative experiences with the application.

### Does PowerProbe have ads?

No, PowerProbe does not contain advertisements. The app is free to download and use without any ad interruptions.

## Version history (last 3 releases)

### 1.0.4 — 2023-06-01

- Change Logo.

### 1.0.3 — 2023-05-03

- fix connection issues.

### 1.0.0 — 2022-09-08

No release notes.

## Apps similar to PowerProbe

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| --- | --- | --- | --- |
| [Immo Bypass](https://appshunter.io/ios/app/immo-bypass/id1361659725) | 3.8 (5) | Free | Utilities |
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## More apps by MGL APPA CORPORATION

- [APPA Connect](https://appshunter.io/ios/app/appa-connect/id1121102476)
- [MASTECH](https://appshunter.io/ios/app/mastech/id1229324045)
- [KPS Link](https://appshunter.io/ios/app/kps-link/id1581513481)
- [KPS FASTCHECK](https://appshunter.io/ios/app/kps-fastcheck/id1670773661)
- [KPS Connect](https://appshunter.io/ios/app/kps-connect/id6466814820)

All apps by MGL APPA CORPORATION: https://appshunter.io/developer/1121102475

## Related topics

[mgl appa corporation](https://appshunter.io/ios/topics/mgl-appa-corporation)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-05.*