PrepFE vs PPI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrepFE
Prepare for your FE exam with practice problems and flashcards. Learn engineering concepts and the FE Reference Handbook on the go. This app offers curated content by experts to help you start your professional engineering journey.
- Practice FE exam questions
- Interactive practice exams
- Hundreds of practice questions
- Detailed step-by-step explanations
- Flashcards for reference handbook
- Progress tracking and analysis
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Don't spend time relearning topics from scratch and using poor resources. Jump right into practice problems and learn by doing! Supplement your learning with flash cards to learn the FE Reference Handbook and be familiar with your discipline's concepts. Take your exam practice on the go and learn with our curated content by engineering experts. Study whenever and wherever it’s convenient with PrepFE™. No need to carry around books and study guides. All you need is your phone and determination. Start your Professional Engineer journey and download the PrepFE - Other Disciplines app. Install the free version today and jump start your studying! We have provided a limited free version of the app that you can try before deciding to upgrade. This version includes a limited set of practice questions, flash cards, and basic progress metrics. *Practice FE exam questions* *Interactive Practice Exams* *Hundreds of Practice Questions* *Detailed & Step-by-Step Explanations* *Reinforce learning with Flash Cards* *Breakdown of strengths and weaknesses* *Updated for 2020* We have up to date content for the new category specifications: • Mathematics • Probability and Statistics • Chemistry • Instrumentation and Controls • Engineering Ethics and Societal Impacts • Safety, Health, and Environment • Engineering Economics • Statics • Dynamics • Strength of Materials • Materials • Fluid Mechanics and Dynamics of Liquids • Fluid Mechanics • Basic Electrical Engineering • Thermodynamics and Heat Transfer
PPI
This mobile companion app provides on-the-go access to Kaplan's PPI online courses and learning hub. It syncs with your desktop account, offering Qbank quizzes, video lectures, flashcards, and progress tracking for test preparation.
- Qbank quizzes
- Detailed question explanations
- Video library
- Flashcards
- Progress tracking
- Free trial access
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MOBILE COMPANION APP FOR PPI, A KAPLAN COMPANY ONLINE COURSES AND LEARNING HUB Take your test prep on the go! Use this app for your actively enrolled accounts in PPI, a Kaplan Company Live Online, OnDemand, or Learning Hub courses. The app automatically syncs with your PPI desktop account—giving you on-the-go access to the following key resources from your course: - The ability to build and take Qbank quizzes - Detailed explanations for each question - Video Library so that you can watch all your course videos on your phone - Flashcards to memorize key concepts - Tracking that syncs everything you do in the app with your overall progress and performance If you're NOT already a PPI student, you can sign up within the app for a limited free trial that gives you access to: - FE Civil Flashcards - FE Civil Diagnostic Exams - FE Civil Exam information -ALWAYS AT THE CUTTING EDGE We constantly update our content, images, and questions so you can stay ahead of the curve. -GET STRATEGIC Step-by-step strategies walk you through each question. Review in-depth explanations and master the material. -LEARN FROM YOUR MISTAKES Detailed review materials and performance analytics help you continutally improve as you study.
Screenshots
Verdict
The clearest difference is rating: PPI at 4.7 against PrepFE's 2.2. PPI also leads on in-app purchases (none vs 9). PrepFE's advantage is review sentiment (8% vs 0%) and iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. PrepFE sells 6 one-off in-app purchases. PPI asks for nothing beyond the download.
PPI holds the better App Store score, 4.7 against 2.2. Both are backed by a comparable volume of ratings — 22 and 46 respectively. Written reviews complicate that: 8% of PrepFE's written reviews are positive against 0% of PPI's, so the app with the better star average is not the one people write more warmly about.
PrepFE ships an update every 2 months, PPI monthly. Both last shipped on November 3, 2026.
| Parameter | PrepFE | PPI |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (22 ratings) | 4.7 (46 ratings) — better |
| Positive reviews | 8.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 22 | 46 — better |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 288 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | PrepFE, Inc. | Kaplan |
Customer experience
PrepFE
PPI
In-app purchases
PrepFE
- 1 Month Access Renewal$47.99
- 1 Month Access2 variants$59.99
- 3 Months Access Renewal$61.99
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- 6 Months Access Renewal$75.99
- 3 Months Access2 variants$79.99
- 6 Months Access2 variants$99.99
PPI
No in-app purchases








