PrepFE vs EnginPrep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PrepFE
Prepare for the FE Mechanical exam with practice problems and flashcards. Learn by doing with expert-curated content, track your progress, and identify areas for improvement. Study conveniently on your mobile device, anytime, anywhere.
- Practice FE exam questions
- Interactive practice exams
- Hundreds of practice questions
- Detailed step-by-step explanations
- Reinforce learning with flashcards
- Breakdown of strengths and weaknesses
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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 - Mechanical 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 • Ethics and Professional Practice • Engineering Economics • Electricity and Magnetism • Statics • Dynamics, Kinematics, and Vibrations • Mechanics of Materials • Material Properties and Processing • Fluid Mechanics • Thermodynamics • Heat Transfer • Measurements, Instrumentation, and Controls • Mechanical Design and Analysis
EnginPrep
Prepare for the FE Civil and Mechanical exams with daily practice problems and comprehensive review lessons. Track your progress, identify weak spots, and take timed mock exams. Sync your learning across devices with a single account.
- Daily FE practice problems
- Worked solutions for all problems
- Topic-specific content review
- Timed mock exams
- Weak spot identification drills
- Progress tracking and syncing
- Cross-device compatibility
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Pass the FE exam with EnginPrep, the FE prep platform built by an engineer who’s been through it. Practice on your phone, review on your laptop, and keep every bit of progress with one account on enginprep.com and this app. Start free, no sign-up required: three new FE problems every day with complete worked solutions, for both Civil and Mechanical. FREE DAILY PROBLEM SET A fresh set of three exam-style problems each day, the same set on the website and in the app. Work them, check your answer, and read the full solution. FULL ACCESS INCLUDES Quick Practice Choose your topics and work through hundreds of problems written to the NCEES exam specification. Every problem has a step-by-step solution, and figures zoom so you can read every dimension. Content Review A lesson for every topic on the Civil and Mechanical FE specs, with practice problems you can regenerate for new numbers until the method sticks. Exam Mode Timed mock exams that mirror the real FE: topic weighting from the NCEES spec, a full-length 110-question exam or a shorter session, breaks, and no feedback until you finish. Then a score breakdown by topic so you know exactly where you stand. Weak Spot Drills The app tracks your accuracy by topic and builds a drill from your lowest-scoring areas. Spend your study time where it counts. Progress Tracking See accuracy by topic, sessions over time, and your daily streak — synced with the website so you can study anywhere. ONE ACCOUNT, EVERYWHERE Your EnginPrep subscription covers enginprep.com and this app. Start a session on your phone during a commute and finish the review on your laptop that night. Built for the FE Civil and FE Mechanical exams. Works on iPhone and iPad, light and dark mode. Questions? Email team@enginpeers.com.
Screenshots
Verdict
The clearest difference is review sentiment: EnginPrep at 62% against PrepFE's 17%. EnginPrep also leads on rating (4.4 vs 2.0) and update cadence (every 3 weeks vs every 2 months). PrepFE's advantage is iOS requirement (13.0 vs 16.4). On price, ads, in-app purchases and monetization model 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 and EnginPrep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
EnginPrep holds the better App Store score, 4.4 against 2.0. Both are backed by a comparable volume of ratings — 58 and 192 respectively. Written reviews point the same way: 17% of PrepFE's written reviews are positive against 62% of EnginPrep's.
PrepFE ships an update every 2 months, EnginPrep every 3 weeks. The most recent releases landed on October 24, 2026 and October 29, 2026 respectively.
| Parameter | PrepFE | EnginPrep |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (58 ratings) | 4.4 (192 ratings) — better |
| Positive reviews | 16.7% of reviews | 61.5% of reviews — better |
| Number of ratings | 58 | 192 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 288 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | PrepFE, Inc. | EnginPeers LLC |
Customer experience
PrepFE
EnginPrep
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
EnginPrep
- Premium Content$4.99








