Comparison

PrepFE vs Chemical Engineering+

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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

About

Chemical Engineering+

Test your knowledge of chemical engineering with a comprehensive quiz app. It offers thousands of questions across various topics, adaptive difficulty, and detailed explanations to enhance learning. Prepare for exams and boost your industry skills with this interactive tool.

Highlights
  • Extensive question bank
  • Topic-specific quizzes
  • Calculations & problem solving
  • Adaptive difficulty
  • Interactive learning with explanations
  • Offline play
  • Leaderboard competition
Features
Read full description

Master the World of Chemical Engineering with our Quiz App! Dive into the fascinating world of chemical engineering and test your knowledge with our app! Whether you’re a student, a professional, or just passionate about the field, this app is your ultimate companion to learn, revise, and challenge yourself. Key Features - Extensive Question Bank: Thousands of questions covering diverse topics like thermodynamics, reaction engineering, process control, energy systems, nanotechnology, and more. - Topic-Specific Quizzes: Focus on areas that matter most to you, from corrosion prevention to renewable energy systems. - Calculations & Problem Solving: Sharpen your skills with numerical problems and real-world scenarios. - Adaptive Difficulty: Questions designed for beginners to experts—perfect for everyone! - Interactive Learning: Detailed explanations for each answer to deepen your understanding. Boost Your Knowledge - Prepare for exams like FE, PE, or university assessments. - Enhance your practical skills for industry applications. - Stay updated with emerging trends like AI in process optimization and sustainable technologies. Why ChemEng Quiz Master? - Designed by experts in chemical engineering. - Intuitive interface with engaging visuals and progress tracking. - Play offline anytime, anywhere. How It Works 1. Choose a topic or let the app select one for you. 2. Answer multiple-choice questions and solve calculation-based problems. 3. Review your performance and learn from detailed feedback. Join a Global Community of Learners Challenge yourself, compete with friends, and climb the leaderboard to become a Chemical Engineering Master! Download ChemEng Quiz Master Today! Your journey to becoming a chemical engineering expert starts here. Unlock your potential, one question at a time. Start Quizzing. Start Learning. Start Winning. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://forwaelade.web.app/ChemicalEngineering/privacy-policy

Screenshots

PrepFE4 screens
Chemical Engineering+4 screens

Verdict

The call

The clearest difference is rating: Chemical Engineering+ at 3.0 against PrepFE's 2.0. PrepFE's advantage is ratings volume (58 vs 2) and review sentiment (17% vs 0%). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. PrepFE sells 6 one-off in-app purchases and Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Chemical Engineering+ holds the better App Store score, 3.0 against 2.0. That said, the two scores are not equally well evidenced: PrepFE has 58 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 17% of PrepFE's written reviews are positive against 0% of Chemical Engineering+'s, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
PrepFE versus Chemical Engineering+: the parameters behind the verdict, then further details
ParameterPrepFEChemical Engineering+
PriceFreeFree
Rating2.0 (58 ratings)3.0 (2 ratings) — better
Positive reviews16.7% of reviews — better0.0% of reviews
Number of ratings58 — better2
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size288 MB18 MB
Age rating4+4+
DeveloperPrepFE, Inc.Forwa Elade Wunde

Customer experience

PrepFE

All ratings57 ratings
Positive24.6%
Neutral0.0%
Negative75.4%
Written reviews42 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

Chemical Engineering+

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

6 purchases

PrepFE

One-time6
  • 1 Month Access Renewal$47.99
  • 1 Month Access2 variants$59.99
  • 3 Months Access Renewal$61.99
Show 3 more
  • 6 Months Access Renewal$75.99
  • 3 Months Access2 variants$79.99
  • 6 Months Access2 variants$99.99
6 purchases

Chemical Engineering+

Subscriptions3
  • 1 Month$9.991 Month
  • 6 Months$19.996 Months
  • 1 Year$29.991 Year
One-time3
  • 1500$0.99
  • 3500$1.99
  • 9000$3.99

Questions

Is PrepFE free?
PrepFE is free to download, with in-app purchases available.
Is Chemical Engineering+ free?
Chemical Engineering+ is free to download, with in-app purchases available.
Which has better reviews, PrepFE or Chemical Engineering+?
Chemical Engineering+ is rated higher. PrepFE averages 2.0 out of 5 from 58 ratings, while Chemical Engineering+ averages 3.0 from 2 ratings.
Do PrepFE or Chemical Engineering+ have ads?
Neither PrepFE nor Chemical Engineering+ shows ads.
Which is updated more often, PrepFE or Chemical Engineering+?
PrepFE ships an update every 2 months, and Chemical Engineering+ every 2 months. Most recently, PrepFE was updated on November 2, 2026 and Chemical Engineering+ on October 30, 2026.

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