Comparison

P Numbers vs NDT Work Log

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

Head to head
About

P Numbers

Quickly access weldability grouping numbers for welding procedures and performance qualifications. This app provides data from authoritative sources like ASME Section IX and AWS B2.1.

Highlights
  • Base metal weldability grouping lookup
  • Welding procedure qualification data
  • Performance qualification data
  • ASME Section IX Table QW/QB-422 data
  • AWS B2.1 Table C1 and C2 data
  • ISO/TR 20173 data
Features
Read full description

P-Numbers: Quick lookup of base metal weldability grouping numbers for welding procedure and performance qualification. Data is provided by C-spec from the master source used for generation, proof-reading and maintenance of ASME Section IX Table QW/QB-422, AWS B2.1 Table C1 and C2, and ISO/TR 20173.

About

NDT Work Log

This app simplifies tracking work experience hours for non-destructive testing professionals. It allows users to log entries for 11 NDT methods, attach details like pictures and work orders, and automatically calculates progress towards certification requirements. Reports can be generated and shared in various formats.

Highlights
  • Log work experience for 11 NDT methods
  • Add photos, work orders, and notes to entries
  • Automatically track progress towards certification
  • Generate reports in PDF, Excel, and Text formats
  • Share reports via email
Features
Read full description

NDT Work Log replaces the time consuming process of writing down all of your work experience hours into a paper logbook with an easy to use mobile phone app. Almost everyone always has their phone on or around them, so for those pursuing a career in non-destructive testing, why carry around a booklet with hand-written work experience hours when you can store it all in your phone instead? NDT Work Log solves that. The NDT Work Log app is a utility application that makes keeping up with your NDT work experience hours as convenient as ever. With a few taps, you can make a work log entry in seconds for 11 different NDT methods. Make that entry as thorough as you like with options to include pictures, work order numbers, part numbers, and any extra notes for reference. The app then adds up all of your total hours in each method and then compares it to the NDT requirements for certification. It lists the hours required, the hours that you have completed, and how many hours remain as you enter job entries and work hours into the log. This information can be shared through email to supervisors, employers, or the technician with options to create reports in Excel Spreadsheet, PDF, and Text File formats that can be downloaded and stored for records. Features: Easy and intuitive interface Choose from 11 NDT methods Make entries as thorough as you like Automatically adds total hours to show your progress Create reports in PDF, .txt, and Excel formats that can be sent through email *****IMPORTANT INFORMATION***** YOUR NDT WORK LOG EXPERIENCE IS STORED ON YOUR APP NOT ON YOUR PHONE. IF YOU DELETE THE APP, YOU WILL LOSE ALL OF YOUR INFORMATION IF YOU HAVE NOT EMAILED REPORTS TO YOURSELF OR YOUR SUPERVISOR. A $14.99 one year subscription purchase will be applied to your iTunes account upon your confirmation. Subscriptions will automatically renew unless canceled within 24 hours before the end of the subscription purchase date time period of 1 year. You can cancel anytime with your iTunes account settings. Any unused portion of a free trial, if offered, will be forfeited if you purchase a subscription. For more information, see our Terms of Use http://www.ndtqualitytraining.online/ndt-work-log-app-terms-of-use/ and Privacy Policy http://www.ndtqualitytraining.online/ndt-work-log-privacy-policy/

Screenshots

P Numbers4 screens
NDT Work Log4 screens

Verdict

The call

The clearest difference is review sentiment: P Numbers at 100% against NDT Work Log's 0%. P Numbers also leads on rating (4.8 vs 3.5) and in-app purchases (none vs 2). NDT Work Log's advantage is update cadence (every 4 months vs every 39 months). On price, ratings volume, ads and device support 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. NDT Work Log sells 1 in-app purchase, starting at $14.99 per year. P Numbers asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

P Numbers holds the better App Store score, 4.8 against 3.5. Both are backed by a comparable volume of ratings — 5 and 6 respectively. Written reviews point the same way: 100% of P Numbers's written reviews are positive against 0% of NDT Work Log's.

UpkeepUpdate frequency

P Numbers ships an update every 39 months, NDT Work Log every 4 months. The most recent releases landed on June 11, 2026 and September 16, 2026 respectively.

Scorecard5 real differences · 5 level
P Numbers versus NDT Work Log: the parameters behind the verdict, then further details
ParameterP NumbersNDT Work Log
PriceFreeFree
Rating4.8 (5 ratings) — better3.5 (6 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings56 — better
Update frequencyEvery 39 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size13 MB23 MB
Age rating4+4+
DeveloperASMEIX CORPORATIONMID AMERICA TESTING LLC

Customer experience

P Numbers

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NDT Work Log

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews3 reviews
Positive0.0%
Neutral33.3%
Negative66.7%

In-app purchases

None

P Numbers

No in-app purchases

1 purchases

NDT Work Log

Subscriptions1
  • App Access Subscription2 variants$14.991 Year

Questions

Is P Numbers free?
P Numbers is free to download, with no in-app purchases.
Is NDT Work Log free?
NDT Work Log is free to download, with in-app purchases available.
Which has better reviews, P Numbers or NDT Work Log?
P Numbers is rated higher. P Numbers averages 4.8 out of 5 from 5 ratings, while NDT Work Log averages 3.5 from 6 ratings.
Do P Numbers or NDT Work Log have ads?
Neither P Numbers nor NDT Work Log shows ads.
Which is updated more often, P Numbers or NDT Work Log?
P Numbers ships an update every 39 months, and NDT Work Log every 4 months. Most recently, P Numbers was updated on June 11, 2026 and NDT Work Log on September 16, 2026.

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