Comparison

Chemical Engineering+ vs Rew

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

Head to head
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

About

Rew

Read full description

Rew is your personal AI study companion for turning topics and notes into focused practice. CREATE STUDY TOPICS Enter what you want to learn, choose a difficulty and question styles, and generate a structured set of questions. Practice with identification, multiple-choice, true-or-false, and scenario-based cards. LEARN FROM EACH ANSWER Review answers and explanations instead of only seeing whether you were right or wrong. Complete each topic and return to questions that need more attention. BUILD YOUR OWN CARDS Create cards manually, improve drafts with AI, or upload supported study material to produce editable suggestions. Review every generated card before saving it. REVIEW WITH PURPOSE Track accuracy, progress, review history, and topics that may need more practice. Rew uses your study activity to organize recommendations and future reviews. MEET YOUR STUDY COMPANION Choose and name a companion that stays with you throughout the app. Use Companion Chat when you want help deciding what to review or need a short study explanation. FLEXIBLE GENERATION Start with free topic generations. When available, you can watch a rewarded ad to add questions to a topic or purchase non-expiring topic-generation credits through the App Store. Rew is designed as a study aid. AI-generated content may occasionally be incomplete or incorrect. Verify important academic, professional, medical, legal, or safety-related information using reliable sources.

Screenshots

Chemical Engineering+4 screens
Rew3 screens

Verdict

The call

The clearest difference is ads: Chemical Engineering+ at none against Rew's shown. Rew's advantage is update cadence (every 3 days vs every 2 months). On price, in-app purchases, device support and iOS requirement 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. Chemical Engineering+ sells 6 in-app purchases, starting at $9.99 per month and Rew sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Chemical Engineering+ ships an update every 2 months, Rew every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Chemical Engineering+ versus Rew: the parameters behind the verdict, then further details
ParameterChemical Engineering+Rew
PriceFreeFree
Rating3.0 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 2 monthsEvery 3 days — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size18 MB16 MB
Age rating4+12+
DeveloperForwa Elade WundeErnst Danielle Legaspi

In-app purchases

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
1 purchases

Rew

One-time1
  • 7 Topic Credits$0.99

Questions

Is Chemical Engineering+ free?
Chemical Engineering+ is free to download, with in-app purchases available.
Is Rew free?
Rew is free to download, with in-app purchases available.
Do Chemical Engineering+ or Rew have ads?
Rew shows ads; Chemical Engineering+ does not.
Which is updated more often, Chemical Engineering+ or Rew?
Chemical Engineering+ ships an update every 2 months, and Rew every 3 days. Most recently, Chemical Engineering+ was updated on November 4, 2026 and Rew on October 31, 2026.

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