Comparison

CLF vs ChemiPro

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

Head to head
About

CLF

Features
Read full description

PASS YOUR AWS CERTIFIED CLOUD PRACTITIONER EXAM Master AWS cloud fundamentals with 600+ practice questions designed to build real exam confidence and help you pass on your first attempt. 600+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? The AWS Certified Cloud Practitioner is the foundational credential that validates your understanding of AWS cloud services and positions you for career growth in one of the most in-demand areas of technology. Whether you are pivoting into cloud or strengthening your existing IT career, this certification signals credible cloud fluency to employers worldwide. WHAT YOU'LL MASTER: โ€ข AWS Shared Responsibility Model โ€ข EC2 Purchasing Options and Compute Fundamentals โ€ข S3 Storage Classes and Lifecycle Policies โ€ข Cloud Migration Strategies and the 7 Rs โ€ข AWS Support Plans and Trusted Advisor โ€ข IAM Policies, Roles, and Root User Security โ€ข VPC, Security Groups, NACLs, and Direct Connect โ€ข AWS Well-Architected Framework โ€ข Cloud Financial Management and Billing Tools โ€ข Cost Allocation Tags and Consolidated Billing โ€ข Serverless Services including Lambda and Fargate โ€ข ECS and Container-Based Compute โ€ข Database Services including RDS, DynamoDB, and ElastiCache โ€ข Security Services including GuardDuty, AWS Config, CloudHSM, Shield, and WAF โ€ข CloudFront, Regions, Edge Locations, and Global Infrastructure STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into Cloud expertise. Download now. Pass your exam. Master Cloud.

About

ChemiPro

This app provides comprehensive chemistry learning resources, including explanations, worked examples, formulas, and practice questions. It covers topics from basic particles to organic chemistry, helping users understand the 'why' behind chemical concepts. Features include a periodic table, calculators, and customizable quizzes for effective study.

Highlights
  • Comprehensive chemistry explanations
  • Worked examples and step-by-step reasoning
  • Formula and equation tools
  • Customizable practice quizzes
  • Periodic table and calculators
  • Offline study content
  • Progress tracking
Features
Read full description

Understand the chemistry behind the symbols. ChemiPro brings explanations, worked examples, formulas, visual references and practice questions together, so you can move from remembering a fact to explaining why it matters. BUILD YOUR UNDERSTANDING Start with particles, measurement, atoms and the periodic table. Continue through chemical bonding, equations, amounts of substance, solutions, acids and bases, energy changes, reaction rates, equilibrium, electrochemistry, organic chemistry and environmental topics. Foundational explanations and more demanding examples support different stages of school study. FOLLOW THE REASONING Lessons explain the idea, how it works and where it applies. Worked examples show the reasoning in steps. Common mistakes help you distinguish a tempting answer from a sound explanation, while independent practice and extension questions let you check your understanding. Term explanations connect the vocabulary with the lesson instead of leaving you with a definition alone. MAKE FORMULAS MEAN SOMETHING Read what a formula is used for, what its symbols and units mean, which assumptions apply and how to interpret the result. Explore chemical equations and diagrams alongside the relevant concepts. Use the periodic table, molar-mass calculator and equation-balancing tools when you need a practical reference. PRACTISE WITH PURPOSE Build quizzes using the available topic, grade, difficulty and content filters. Questions include calculations, practical situations and diagram interpretation, with alternatives that address common misunderstandings. Review explanations after answering and revisit the source material. Saved results help you see how your practice is progressing. KEEP STUDY ORGANIZED Search for a topic, save useful entries to Favorites and follow your reading progress. Adjust text size, choose a color theme, and use light or dark appearance. Content is bundled for offline study; favorites and progress are stored locally, with no app account required. Learning content and quizzes are available in English, Albanian, German, French, Spanish, Italian, Portuguese, Turkish, Arabic, Hindi, Indonesian, Vietnamese, Simplified Chinese and Traditional Chinese. ChemiPro is a study companion; topic coverage and teaching order vary between courses. Practical chemistry should follow your teacher's instructions and appropriate laboratory safety procedures. PREVIEW AND FULL ACCESS Start a free 10-minute local preview when you are ready. Once started, the timer continues when you leave or close the app. It does not start a subscription or charge you. Choose an annual subscription or a one-time purchase for full access. The one-time purchase provides permanent access with no recurring fee and does not cancel an existing subscription. The Store shows the current price and any eligible introductory offer before confirmation. Subscriptions renew automatically unless canceled in your Store account before renewal. Any Store free trial converts to a paid subscription unless canceled in time. Purchases, restoration and periodic subscription checks require internet. Support: support@etemidev.com Terms of Use (EULA) & Privacy Policy: https://etemidev.com/privacy/chemipro/#terms https://etemidev.com/privacy/chemipro/

Screenshots

CLF3 screens
ChemiPro4 screens

Verdict

The call

The clearest difference is update cadence: ChemiPro at weekly against CLF's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. CLF sells 3 in-app purchases, starting at $3.99 per month and ChemiPro sells 2 in-app purchases, starting at $2.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CLF ships an update every 2 months, ChemiPro weekly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard1 real difference ยท 7 level
CLF versus ChemiPro: the parameters behind the verdict, then further details
ParameterCLFChemiPro
PriceFreeFree
Positive reviewsโ€”0.0% of reviews
Update frequencyEvery 2 monthsWeekly โ€” better
AdsNoNo
In-app purchasesYesYes
Monetizationโ€”Free with in-app purchases
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.0 โ€” better16.4
Further details โ€” not scored
Size27 MB85 MB
Age rating4+9+
DeveloperDavy RaittGentiana Etemi

In-app purchases

3 purchases

CLF

Subscriptions2
  • Pro Monthly$3.991 Month
  • Pro Yearly7 Days trial$14.991 Year
One-time1
  • Pro Lifetime$19.99
2 purchases

ChemiPro

Subscriptions1
  • ChemiPro Premium3 Days trial$2.991 Year
One-time1
  • ChemiPro Full Access$12.99

Questions

Is CLF free?
CLF is free to download, with in-app purchases available.
Is ChemiPro free?
ChemiPro is free to download, with in-app purchases available.
Do CLF or ChemiPro have ads?
Neither CLF nor ChemiPro shows ads.
Which is updated more often, CLF or ChemiPro?
CLF ships an update every 2 months, and ChemiPro weekly. Most recently, CLF was updated on October 30, 2026 and ChemiPro on November 5, 2026.

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