Comparison

Inspectors Path vs NDT Cert Study

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

Head to head
About

Inspectors Path

Features
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Inspectors Path is built for inspectors, technicians, craft professionals, and certification candidates preparing for their next inspection credential. Practice for API 510, API 570, API 653, API 936, API 1169, API 1184, SIFE, SIRE, SIEE, and other inspection-focused exams in one place. Use realistic practice questions, timed exam sessions, answer explanations, code references, voice practice, performance tracking, and smart recommendations to focus your study where it matters most. Whether you already work in inspection or you’re building on experience in welding, NDT, piping, tank construction, refractory, pipeline work, or vendor surveillance, Inspectors Path helps you prepare for your next move. Key features include: β€’ Practice questions for multiple inspection certifications β€’ Timed practice to build speed and confidence β€’ Detailed answer explanations and code references β€’ Voice practice for hands-free study β€’ Progress tracking and exam history β€’ Smart recommendations based on performance β€’ Flexible practice from the jobsite, truck, office, or home Don’t just study for the exam. Practice for it. Prepare for your next inspection certification with Inspectors Path.

About

NDT Cert Study

Features
Read full description

NDT Cert Study is a practice-question app for anyone preparing for nondestructive testing certification exams. It covers the main methods and code references: β€’ Ultrasonic (UT) Levels I and II, plus phased array (PAUT) β€’ Penetrant (PT) Levels I and II β€’ Magnetic particle (MT) Levels I and II β€’ Radiographic (RT) Levels I and II β€’ API 1104 weld acceptance-criteria questions integrated into the UT and RT tracks Each question includes a worked explanation, so you learn why an answer is right, not just which one. The app tracks how ready you are by topic, lets you save tricky questions for another pass, and includes timed practice exams. Everything works offline. Your progress stays on your device. Modules unlock with a single one-time purchase. No subscription. NDT Cert Study is an independent study aid. It is not affiliated with, endorsed by, or sponsored by API, ASNT, ISO, CGSB, BINDT/PCN, or TWI/CSWIP. All certification names and marks are the property of their respective owners.

Screenshots

Inspectors Path4 screens
NDT Cert Study4 screens

Verdict

The call

Inspectors Path and NDT Cert Study are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Inspectors Path sells 10 in-app purchases, starting at $30.00 per month and NDT Cert Study sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Inspectors Path ships an update fortnightly, NDT Cert Study every 3 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Inspectors Path versus NDT Cert Study: the parameters behind the verdict, then further details
ParameterInspectors PathNDT Cert Study
PriceFreeFree
Update frequencyFortnightly β€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 β€” better15.1
Further details β€” not scored
Size56 MB35 MB
Age rating4+4+
DeveloperInspectors Path llcSimon Shih

In-app purchases

10 purchases

Inspectors Path

Subscriptions1
  • Pro Plan 1 Months$30.001 Month
One-time9
  • API 1184 Exam - 1 Month$24.99
  • API 1169 Exam - 1 Month$24.99
  • API 510 Exam - 1 Month$24.99
Show 6 more
  • API 936 Exam - 1 Month$24.99
  • API 570 Exam - 1 Month$24.99
  • SIRE Exam - 1 Month$24.99
  • API 653 Exam - 1 Month$24.99
  • SIFE Exam - 1 Month$24.99
  • SIEE Exam - 1 Month$24.99
10 purchases

NDT Cert Study

One-time10
  • CGSB / MT Level II$9.99
  • CGSB / MT Level I$9.99
  • CGSB / RT Level I$9.99
Show 7 more
  • CGSB / PT Level II$9.99
  • CGSB / PT Level I$9.99
  • CGSB / RT Level II$9.99
  • CGSB / UT Level II$9.99
  • CGSB / UT Level I$9.99
  • CGSB / PAUT Level I$9.99
  • CGSB / PAUT Level II$9.99

Questions

Is Inspectors Path free?
Inspectors Path is free to download, with in-app purchases available.
Is NDT Cert Study free?
NDT Cert Study is free to download, with in-app purchases available.
Do Inspectors Path or NDT Cert Study have ads?
Neither Inspectors Path nor NDT Cert Study shows ads.
Which is updated more often, Inspectors Path or NDT Cert Study?
Inspectors Path ships an update fortnightly, and NDT Cert Study every 3 weeks. Most recently, Inspectors Path was updated on October 31, 2026 and NDT Cert Study on October 28, 2026.

Other comparisons