Comparison

API 653 helpmate vs CWI Welding Inspector Exam

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

Head to head
About

API 653 helpmate

Features
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"API 653 Helpmate" includes knowledge base required for the current Body of Knowledge for Aboveground Storage Tank Inspector certification, ensuring that users are up to date on the latest requirements. The app also offers features such as progress tracking and the ability to access questions from custom standard, allowing users to tailor their studying to their individual needs. These feature enables users to focus on areas where they need the most improvement and reinforce their understanding of important concepts. With "API 653 Helpmate," users can study anytime, anywhere, and feel confident in their exam preparation. The app assures similar success to all the candidates / inspectors / Engineers / beginners who believe in themselves and are ready to learn without any barriers. Expectations: - Help engineers, engineering students, and designers to quickly learn the engineering codes and standards used in the industry for petroleum and petrochemical industries. - A better understanding of API 653 certification examination questions and real-life exam experience. - latest API 653 Body of Knowledge (BOK) requirements - Improved confidence for the actual exam and higher chances of passing the exam. - Maximum success on your first attempt while minimizing the impact of exam preparation on your working schedule. - 24/7 access to learn at your own pace, place, and convenience. - Availability of various platforms that can be accessed from a tablet or smartphone. - Elimination of the dependency on expensive API 653 exam preparation classroom courses. - Questions from each category listed within the Body of Knowledge (BOK), including API 653, API 650, API RP 575, API RP 651, API RP 652, API RP 576, API RP 577, API RP 571, ASME Sec V, and Section IX. Limitations: - Actual exam questions as they change frequently, but there are ample frequently asked or similar questions that can be found within the app. - This app cannot give you the certification to become an authorized API inspector, but it can help engineers, engineering students, and designers quickly learn the engineering codes and standards used in the petroleum and petrochemical industries. This app is developed by authorized API Aboveground Storage Tank Inspectors who have adopted the systematic self-learning approach and succeeded without any classroom or online course. We believe in you and encourage you to start your learning journey with API 653 Helpmate today. Remember, every step you take will make you stronger, more skilled, more self-confident, and ultimately more successful. As Christopher Robin wisely said, "Always remember you are braver than you believe, stronger than you. For more information, please visit https://helpmateworld.com/about-us/

About

CWI Welding Inspector Exam

Prepare for welding inspector certification exams with practice tests, study plans, and flashcards. Covers AWS D1.1, API 1104, and ASME IX codes. Offers free daily practice and a premium subscription for unlimited access.

Highlights
  • Code-specific practice tests (AWS D1.1, API 1104, ASME IX)
  • Daily study plan
  • Flashcards and study guides
  • Answer explanations and references
  • Weld symbol and filler-metal guides
  • Mock practice scenarios
Features
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Build your welding-inspection knowledge with focused practice, a daily study plan and welding study tools. CHOOSE YOUR CODE Start with AWS D1.1, API 1104 or ASME IX. Practice fundamentals alongside your selected code and see the question count available for your study path. The full bank contains 539 questions; selected paths include 494 for D1.1, 456 for API 1104 and 447 for ASME IX. STUDY WITH A PURPOSE Use a study plan, guides and flashcards to organize your preparation. Review answer explanations and references in shortened mock practice. Written practical scenarios help you reason through stated inspection criteria. WELDING STUDY TOOLS Explore weld symbols, filler-metal classifications, heat input, preheat and carbon equivalent. Use code-navigation exercises and study references alongside your required code-book edition. TRY BEFORE SUBSCRIBING No login is required. Free access includes five practice answers per day, a study plan, three guides and one flashcard deck. Pro unlocks unlimited questions, all guides and decks, and premium tools. Choose monthly, annual or lifetime access. Eligible new subscribers can try the monthly plan free for three days. Annual and lifetime plans have no free trial. Prices and renewal terms are shown before purchase. Subscriptions renew automatically unless canceled; manage or cancel them in your App Store account settings. Restore purchases within the app. CWI Prep is independent and is not affiliated with or endorsed by AWS, API or ASME. Code-specific sets are supplemental and do not represent complete official exam coverage. Mock practice is abbreviated; written Part B scenarios do not replace physical practical preparation. Use current official candidate documents and the code edition required for your exam. Questions, technical content and tools are in English; app navigation supports Spanish. Study tools do not replace professional judgment or governing code requirements. Privacy Policy: https://www.voltexam.com/privacy Terms of Service: https://www.voltexam.com/terms

Screenshots

API 653 helpmate4 screens
CWI Welding Inspector Exam4 screens

Verdict

The call

API 653 helpmate and CWI Welding Inspector Exam are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. API 653 helpmate sells 1 one-off in-app purchase and CWI Welding Inspector Exam sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
API 653 helpmate versus CWI Welding Inspector Exam: the parameters behind the verdict, then further details
ParameterAPI 653 helpmateCWI Welding Inspector Exam
PriceFreeFree
Rating—4.4 (14 ratings) — better
Number of ratings—14 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size33 MB7 MB
Age rating4+4+
DeveloperAustenite Pty LtdDeeun Inc.

In-app purchases

1 purchases

API 653 helpmate

One-time1
  • API 653 Premium - 1 Year Access$49.99
3 purchases

CWI Welding Inspector Exam

Subscriptions2
  • Monthly Access3 Days trial$9.991 Month
  • Annual Access$29.991 Year
One-time1
  • CWI Prep - Lifetime Pro$59.99

Questions

Is API 653 helpmate free?
API 653 helpmate is free to download, with in-app purchases available.
Is CWI Welding Inspector Exam free?
CWI Welding Inspector Exam is free to download, with in-app purchases available.
Do API 653 helpmate or CWI Welding Inspector Exam have ads?
Neither API 653 helpmate nor CWI Welding Inspector Exam shows ads.
Which is updated more often, API 653 helpmate or CWI Welding Inspector Exam?
API 653 helpmate ships an update every 3 weeks, and CWI Welding Inspector Exam every 3 weeks. Most recently, API 653 helpmate was updated on October 25, 2026 and CWI Welding Inspector Exam on October 31, 2026.

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