Comparison

Inspectors Path vs API Inspector Cert Prep

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

API Inspector Cert Prep

Features
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API Inspector Cert Prep helps you study for the API individual certification exams β€” 510 (Pressure Vessel), 570 (Piping), and 653 (Aboveground Storage Tank) β€” with a large bank of exam-style practice questions and realistic timed mock exams. Each certification is its own module you can unlock, built from that exam's published Body of Knowledge and the codes and recommended practices it references. WHAT'S INSIDE API 510 – Pressure Vessel Inspector: 323 questions API 570 – Piping Inspector: 291 questions API 653 – Aboveground Storage Tank Inspector: 251 questions PRACTICE THE WAY YOU LEARN - Practice mode covers the whole module, ordered to surface your weak areas first - Drill any single topic on its own - Every question includes a worked explanation with the relevant code reference - Timed mock exams mirror exam-day pace, with a running clock and a scored result TRACK YOUR READINESS - Per-topic and overall readiness show exactly where you stand - Spaced-repetition scheduling brings back what you keep missing - Review any missed question, and save the tricky ones for later - Exam history keeps a record of your past mock exams PLAN AROUND YOUR TEST DATE - Set your exam date and get a daily target to cover the bank in time - See days remaining and current readiness at a glance BUILT TO JUST WORK - No account, no login β€” everything stays on your device - Works fully offline; the only network use is purchases - Light, dark, and system themes Buy only the modules you need. A free sample of each module is available before you unlock it.

Screenshots

Inspectors Path4 screens
API Inspector Cert Prep4 screens

Verdict

The call

The clearest difference is update cadence: Inspectors Path at fortnightly against API Inspector Cert Prep's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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 API Inspector Cert Prep sells 3 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, API Inspector Cert Prep every 3 months. Both last shipped on October 31, 2026.

Scorecard1 real difference Β· 5 level
Inspectors Path versus API Inspector Cert Prep: the parameters behind the verdict, then further details
ParameterInspectors PathAPI Inspector Cert Prep
PriceFreeFree
Update frequencyFortnightly β€” betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 β€” better15.1
Further details β€” not scored
Size56 MB32 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
3 purchases

API Inspector Cert Prep

One-time3
  • API 510 – Pressure Vessel Inspector$19.99
  • API 570 – Piping Inspector$19.99
  • API 653 – Storage Tank Inspector$19.99

Questions

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

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