# PCA Pro

> PCA Pro (iPhone/iPad app by Thomas Crampton.)

- Source: https://appshunter.io/ios/app/pca-pro/id1493472656 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Crampton](https://appshunter.io/developer/1472888376)
- Category: Education
- Price: $1.99
- Age rating: 4+
- Requires: iOS 16.1 · 6 MB
- Languages: English
- Released: 2020-02-05
- Data updated: 2026-05-14
- User reviews in markdown: https://appshunter.io/ios/app/pca-pro/id1493472656/reviews.md

## What is PCA Pro?

PCA Pro allows you to prepare a machine learning dataset for training by performing a form of exploratory data analysis. The main use case involves a user wanting to reduce the time required to train a model without sacrificing too much model accuracy. PCA Pro will identify and plot the components in the dataset that contribute most to the variance in the data. Using the eigenvectors generated in the app you can specify the set of components that make up the transformation matrix. Using the transformation matrix you then apply it to the original dataset so that the result is a reduction in the number of training/validation features.

PCA Pro can be used in conjunction with the Machine Learning Playground (MLP) app by pasting the transformed dataset into the MLP. You can examine how the training of an ML model is improved using the transformed dataset. In addition, the dataset's eigenvectors and a transformation matrix are displayed if you wish to use them outside of the app.


## Version history (last 2 releases)

### 1.1 — 2022-11-21

This release is compiled under iOS v16.1. Minor changes to the UI to ensure that its layout works for the whole range of iPad sizes.

### 1.0 — 2020-02-05

No release notes.

## More apps by Thomas Crampton

- [Machine Learning Playground](https://appshunter.io/ios/app/machine-learning-playground/id1472888377)

All apps by Thomas Crampton: https://appshunter.io/developer/1472888376

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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 2026-05-14.*