PrepFE vs FE Exam Prep
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
FE Exam Prep
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Prepare for the NCEES Fundamentals of Engineering (FE) exam across all seven discipline exams — Civil, Mechanical, Electrical & Computer, Chemical, Environmental, Industrial & Systems, and Other Disciplines. FE Exam Prep gives you a deep, varied bank of original practice problems in every knowledge area, each with a clear step-by-step worked solution. Because problems are generated fresh with new values every time, you can drill a topic until it truly sticks — and every answer is computed, so it's always correct. WHAT'S INSIDE • All seven FE disciplines, organized by knowledge area • Hundreds of practice problems per topic, with worked solutions • Easy, medium, and hard levels — ramp up to genuine multi-step exam problems • Full-length, timed mock exams weighted like the real 110-question exam, with a pass-readiness estimate • A searchable, discipline-filterable formula reference, beautifully typeset • Progress tracking: readiness, weak areas, answer speed, and study streaks • Smart practice that targets your weak spots and spaces out review PRIVATE BY DESIGN • No ads, ever • No accounts, no sign-ups • No data collected — your progress stays on your device • Works completely offline FE Exam Prep is an independent study aid. It is not affiliated with, authorized, or endorsed by NCEES, and it does not use actual exam questions — every problem and formula is original. On exam day you'll use the official NCEES FE Reference Handbook.
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Verdict
The clearest difference is price: PrepFE at Free against FE Exam Prep's $24.99. PrepFE also leads on iOS requirement (13.0 vs 17.0). FE Exam Prep's advantage is in-app purchases (none vs 9). On update cadence, ads and device support 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
PrepFE is free to download; FE Exam Prep costs $24.99 up front. PrepFE sells 6 one-off in-app purchases. FE Exam Prep asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | PrepFE | FE Exam Prep |
|---|---|---|
| Price | Free — better | $24.99 |
| Rating | 2.2 (22 ratings) — better | — |
| Positive reviews | 8.3% of reviews | — |
| Number of ratings | 22 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 288 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | PrepFE, Inc. | Kathryn Halterman |
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
FE Exam Prep
No in-app purchases
Questions
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Is FE Exam Prep free?
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