# PP+ Force Vector Addition vs ControlsLab

The clearest difference is price: ControlsLab at Free against PP+ Force Vector Addition's $1.99. ControlsLab also leads on rating (5.0 vs 3.3). PP+ Force Vector Addition's advantage is in-app purchases (none vs 1). On ratings volume, ads, device support and iOS requirement there is nothing between them.

ControlsLab is free to download; PP+ Force Vector Addition costs $1.99 up front. ControlsLab sells 1 one-off in-app purchase. PP+ Force Vector Addition asks for nothing beyond the download.

ControlsLab holds the better App Store score, 5.0 against 3.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

## The numbers

| Metric | PP+ Force Vector Addition | ControlsLab |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [3.3 (3 ratings)](https://appshunter.io/ios/app/pp-plus-force-vector-addition/id622367226/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/controlslab/id6763078520/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 16 months | — |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 105 MB | 1 MB |
| Requires iOS | **18.0** | 18.5 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Polyhedron Learning Media, Inc.](https://appshunter.io/developer/458882328) | [Pedro Resto](https://appshunter.io/developer/1895152088) |

## What reviewers say

### PP+ Force Vector Addition

[App page](https://appshunter.io/ios/app/pp-plus-force-vector-addition/id622367226)

This educational app simulates a force table experiment for investigating vector addition of forces. It provides realistic data with errors, analysis tools, and supporting materials for students to conduct virtual physics labs.

**Highlights:** 3D force table simulation, Realistic experimental data with errors, Introductory videos and background theory, Analysis and reporting tools, Pre-lab quiz and post-lab questions, Teacher support materials

**Features:** macOS Compatibility

**In-app purchases:** none


### ControlsLab

[App page](https://appshunter.io/ios/app/controlslab/id6763078520)

This app offers a professional-grade simulator for system dynamics and control systems. It allows users to visualize and interact with mass-spring-damper systems and control loops without coding. Explore parameters, inputs, and analysis modes with real-time visual feedback.

**Highlights:** Real-time system simulation, Parameter adjustment with sliders, Live time-domain response plot, S-plane pole visualization, Open-loop and closed-loop modes, PID controller tuning, Bode plot analysis

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ControlsLab Pro | $4.99 | one-time |


## Frequently asked questions

### Is PP+ Force Vector Addition free?

PP+ Force Vector Addition costs $1.99, with no in-app purchases.

### Is ControlsLab free?

ControlsLab is free to download, with in-app purchases available.

### Which has better reviews, PP+ Force Vector Addition or ControlsLab?

ControlsLab is rated higher. PP+ Force Vector Addition averages 3.3 out of 5 from 3 ratings, while ControlsLab averages 5.0 from 2 ratings.

### Do PP+ Force Vector Addition or ControlsLab have ads?

Neither PP+ Force Vector Addition nor ControlsLab shows ads.

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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.*