# Power Systems Design vs MarkPlanApp

The clearest difference is update cadence: MarkPlanApp at every 3 days against Power Systems Design's every 9 months. Power Systems Design's advantage is iOS requirement (8.2 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Power Systems Design against 5.0 for MarkPlanApp. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Power Systems Design ships an update every 9 months, MarkPlanApp every 3 days. The most recent releases landed on October 2, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Power Systems Design | MarkPlanApp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/power-systems-design/id908590026/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/markplanapp/id6801763654/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 days** |
| Monetization | Free | Free |
| Size | 25 MB | 41 MB |
| Requires iOS | **8.2** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Intecons](https://appshunter.io/developer/1031812770) | [Javier Cuellar](https://appshunter.io/developer/6801763656) |

## What reviewers say

### Power Systems Design

[App page](https://appshunter.io/ios/app/power-systems-design/id908590026)

This app delivers in-depth editorial content for power electronic design engineers. It focuses on helping professionals with their latest product designs and fosters global innovation within the community.

**Highlights:** In-depth editorial content, Focus on product design, Global innovation support, Community for engineers, Latest design insights

**In-app purchases:** none


### MarkPlanApp

[App page](https://appshunter.io/ios/app/markplanapp/id6801763654)

This app allows users to mark up PDFs of blueprints with installation details, photos, and comments. It provides a documented history of work phases and team roles, accessible even without an internet connection. All project information is organized in one place for easy reference.

**Highlights:** Mark installations on PDF blueprints, Attach photos and videos, Offline functionality, Team collaboration with permissions, Document work phases, Project history logging

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

**In-app purchases:** none


## Frequently asked questions

### Is Power Systems Design free?

Power Systems Design is free to download, with no in-app purchases.

### Is MarkPlanApp free?

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

### Which has better reviews, Power Systems Design or MarkPlanApp?

Power Systems Design and MarkPlanApp are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Power Systems Design or MarkPlanApp have ads?

Neither Power Systems Design nor MarkPlanApp shows ads.

### Which is updated more often, Power Systems Design or MarkPlanApp?

Power Systems Design ships an update every 9 months, and MarkPlanApp every 3 days. Most recently, Power Systems Design was updated on October 2, 2026 and MarkPlanApp on October 18, 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.*