# myPurdue vs Ultrasonic Study Guide

The clearest difference is price: myPurdue at Free against Ultrasonic Study Guide's $14.99. Ultrasonic Study Guide's advantage is iOS requirement (18.5 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

myPurdue is free to download; Ultrasonic Study Guide costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

myPurdue ships an update every 5 months, Ultrasonic Study Guide every 7 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | myPurdue | Ultrasonic Study Guide |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | **[2.8 (5 ratings)](https://appshunter.io/ios/app/mypurdue/id6477218525/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 7 months |
| Monetization | Free | — |
| Size | 32 MB | 2 MB |
| Requires iOS | 26.0 | **18.5** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Purdue University](https://appshunter.io/developer/371741257) | [Skaggs Media LLC](https://appshunter.io/developer/1836684180) |

## What reviewers say

### myPurdue

[App page](https://appshunter.io/ios/app/mypurdue/id6477218525)

This app connects you to Purdue University, offering personalized campus information and a streamlined user experience on your mobile device. It's your pocket guide to all things Purdue, accessible anytime, anywhere.

**Highlights:** Personalized myPurdue content, Enhanced mobile user experience, Access to Purdue University information, Connect to campus resources, Available on iPhone and iPad

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

**In-app purchases:** none


### Ultrasonic Study Guide

[App page](https://appshunter.io/ios/app/ultrasonic-study-guide/id6752231982)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is myPurdue free?

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

### Is Ultrasonic Study Guide free?

Ultrasonic Study Guide costs $14.99, with no in-app purchases.

### Do myPurdue or Ultrasonic Study Guide have ads?

Neither myPurdue nor Ultrasonic Study Guide shows ads.

### Which is updated more often, myPurdue or Ultrasonic Study Guide?

myPurdue ships an update every 5 months, and Ultrasonic Study Guide every 7 months. Most recently, myPurdue was updated on October 13, 2026 and Ultrasonic Study Guide on October 7, 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.*