# Principal Investigator Prep — Clinical Research Professional

> Study tool for the Certified Principal Investigator exam with practice questions and progress tracking. (iPhone/iPad app by Exam Prep OU.)

- Source: https://appshunter.io/ios/app/principal-investigator-prep/id6754170100 (this page in markdown: same URL + `.md`)
- Developer: [Exam Prep OU](https://appshunter.io/developer/1689642184)
- Category: Education, Medical
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 15.1 · 50 MB
- Languages: American English
- Released: 2025-10-22
- Data updated: 2026-06-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/principal-investigator-prep/id6754170100/reviews.md

## What is Principal Investigator Prep?

Prepare for the Principal Investigator Exam with Our Comprehensive Principal Investigator Prep App!
Principal Investigator Prep is an app designed to help candidates prepare for the Certified Principal Investigator exam, administered by the Association of Clinical Research Professionals. This certification is essential for professionals seeking to validate their expertise as principal investigators in clinical research, ensuring they are equipped with the latest knowledge and skills in this critical field.
Key Features:
•	Up-to-Date Content: Our study materials are regularly updated to reflect the latest exam content standards, ensuring you have access to the most current information.
•	Extensive Question Bank: Access a comprehensive question bank filled with hundreds of exam-style questions covering all essential topics relevant to the role of a principal investigator.
•	Detailed Explanations: Enhance your understanding with thorough explanations for every question, ensuring you grasp key concepts and their practical applications in clinical research.
•	Progress Tracking: Monitor your progress with our intuitive performance tracking feature. Identify your strengths and weaknesses in different subject areas to focus your study efforts effectively.
•	Customizable Study Plans: Tailor your study schedule to fit your needs. Whether you have a few weeks or several months to prepare, our app adapts to your timeline and helps you stay on track.
•	Simulated Exam Mode: Experience the exam with our timed practice tests that mimic official testing conditions, building your confidence and test-taking skills.
•	User-Friendly Interface: Enjoy a user-friendly and intuitive interface designed for easy navigation and seamless learning. Study on your terms, whenever and wherever you choose.
•	Success Stories: Join a community of successful exam candidates who have utilized our app to achieve their goals. Let their experiences inspire and motivate you on your journey.
•	Continuous Updates: As the exam evolves, so does our app. We are committed to providing ongoing updates to reflect any changes in the exam content and format.
Disclaimer: This app is not affiliated with, endorsed by, or associated with the Association of Clinical Research Professionals (ACRP) or the Certified Principal Investigator (CPI®) credential. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. This app is an independent resource created to assist individuals in preparing for the exam. The content provided is for educational purposes only and is not an official study guide or endorsed material.
Start your journey towards certification as a principal investigator. Download the Principal Investigator Prep app now and take the first step towards achieving your professional goals!
You can find more information about our Products and Premium subscription here: 
Terms of Use - https://examprep.help/terms.html 
Privacy Policy - https://examprep.help/policy.html

## Key features

- Up-to-date exam content
- Extensive question bank
- Detailed explanations
- Progress tracking
- Customizable study plans
- Simulated exam mode
- User-friendly interface

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Investigator Prep Weekly Access | $14.99 | per 7 days |
| Investigator Monthly Full Access | $34.99 | per month |
| Investigator Quarterly Full Access | $69.99 | per 3 months |
| Investigator Annual Full Access | $199.99 | per year |
| Investigator Prep Monthly Access | $34.99 | per month |
| Investigator Annual Full Access | $199.99 | per year |
| Investigator Semiannual Full Access | $139.99 | per 6 months |
| Investigator Semiannual Full Access | $139.99 | per 6 months |
| Investigator Quarterly Full Access | $69.99 | per 3 months |



## Frequently asked questions about Principal Investigator Prep

### What is Principal Investigator Prep?

Principal Investigator Prep is an educational app designed to help candidates prepare for the Certified Principal Investigator exam. It offers study materials, practice questions, and progress tracking to aid in exam readiness.

### Is Principal Investigator Prep affiliated with ACRP?

No, this app is not affiliated with, endorsed by, or associated with the Association of Clinical Research Professionals (ACRP) or the Certified Principal Investigator (CPI®) credential. It is an independent resource for exam preparation.

### What kind of content does Principal Investigator Prep offer?

The app provides up-to-date content reflecting the latest exam standards, an extensive question bank with hundreds of exam-style questions, and detailed explanations for each question to enhance understanding.

### How does Principal Investigator Prep help with studying?

It features progress tracking to identify strengths and weaknesses, customizable study plans to fit individual timelines, and simulated exam modes to mimic official testing conditions and build confidence.

### What are the subscription options for Principal Investigator Prep?

Subscription plans include Weekly Access for $14.99/P7D, Monthly Full Access for $34.99/P1M (with a 3-day free trial), and Quarterly Full Access for $69.99/P3M (also with a 3-day free trial).

### What devices is Principal Investigator Prep available on?

Principal Investigator Prep is currently supported on iPhone and iPod devices.

### How often is Principal Investigator Prep updated?

The app is committed to continuous updates to reflect any changes in the exam content and format, ensuring users always have access to the most current information.

### What is the age rating for Principal Investigator Prep?

The app has an age rating of 12+, making it suitable for individuals aged 12 and older.

## Version history (last 1 release)

### 1.0 — 2025-10-22

No release notes.

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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 2026-06-04.*