Comparison

Piping DataBase vs NDT Master

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

Head to head
About

Piping DataBase

This mobile reference tool provides essential data for piping engineers and professionals in various industries. It offers standard dimensions for steel and stainless steel pipes, supporting both US Customary and SI units.

Highlights
  • Standard pipe dimensions (OD, wall thickness, mass)
  • Welded and seamless steel pipes
  • Wrought stainless steel pipes
  • Supports pipe sizes up to 80"
  • Interchangeable US Customary and SI Units
  • Includes all Schedule and Identifications
Features
Read full description

The best mobile reference tool for Piping Engineers, Designers, Draftsmen, Pipe Fitters, Students and more for the Oil & Gas Industry, Petrochemical & Manufacturing Plants as well as Design Engineering Consulting Companies. This application covers the standard dimensions of outside diameter (OD), nominal wall thickness ( t ) and nominal plain end mass (Wpe) of welded and seamless wrought steel pipes & wrought stainless steel pipes. User interface is presented in an easy one page set up, interchangeable to both US Customary Units and SI Units by scrolling the pickers and touching the button switch. Features: *** Pipe Sizes up to 80"*** *** includes Stainless Steel Pipes *** *** all Schedule and Identifications *** Note: -A sub-series version of Piping DataBase - Xtreme -This has been released for users interested in Pipe Schedule for welded and seamless wrought steel pipes.

About

NDT Master

This app streamlines ultrasonic testing for field inspections. It offers rapid weld rating, DAC/TCG curve building, 3D beam simulation, and OCR parameter capture. Includes essential UT calculators and material presets for efficient flaw detection and setup confidence.

Highlights
  • AWS D-Rating in 5 Seconds
  • DAC/TCG Curve Building
  • 3D Beam Simulation
  • OCR Parameter Capture
  • 9 UT Calculators
  • Offline-First Workflow
Features
Read full description

NDT Master is built for field ultrasonic testing workflows. It brings AWS D-Rating, DAC/TCG curve building, 3D beam simulation, OCR parameter capture, and practical UT calculators into one offline-first app. Core field workflows - AWS D-Rating in 5 Seconds: Fast weld indication workflow for field UT - Build DAC/TCG Curves Fast: Plot reference echoes and gain table instantly - Scan Readings. Auto-Fill Parameters.: OCR maps velocity, MHz and dB in seconds - Locate Flaws Faster: Instant depth and projection outputs - Critical Angles at a Glance: Snell + beam spread for setup confidence - Beam Spread You Can Trust: Visualize setup impact before inspection starts Tools included - 9 UT calculators: Wavelength, Near Field, Beam Spread, Flaw Location, Snell's Law, ToFD PCS, dB Calc, Acoustic Impedance, Resonance. - Material presets for steel, aluminum, stainless steel, and common inspection setup. - Code-aware workflows for weld inspection decisions, with AWS and ASME terminology kept visible. Offline and private - Built for Real Field Work: Local data, no account, offline-first workflow

Screenshots

Piping DataBase2 screens
NDT Master4 screens

Verdict

The call

The clearest difference is review sentiment: Piping DataBase at 100% against NDT Master's 0%. Piping DataBase also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 1). NDT Master's advantage is price (Free vs $3.99) and update cadence (every 2 weeks vs every 4 months). On 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

NDT Master is free to download; Piping DataBase costs $3.99 up front. NDT Master sells 1 one-off in-app purchase. Piping DataBase asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Piping DataBase holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 100% of Piping DataBase's written reviews are positive against 0% of NDT Master's.

UpkeepUpdate frequency

Piping DataBase ships an update every 4 months, NDT Master every 2 weeks. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

Scorecard7 real differences · 3 level
Piping DataBase versus NDT Master: the parameters behind the verdict, then further details
ParameterPiping DataBaseNDT Master
Price$3.99Free — better
Rating5.0 (2 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews — better0.0% of reviews
Number of ratings22
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15
Further details — not scored
Size3 MB20 MB
Age rating4+4+
DeveloperRadin Alcira雪 蔺

Customer experience

Piping DataBase

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NDT Master

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Piping DataBase

No in-app purchases

1 purchases

NDT Master

One-time1
  • Professional Unlock$9.99

Questions

Is Piping DataBase free?
Piping DataBase costs $3.99, with no in-app purchases.
Is NDT Master free?
NDT Master is free to download, with in-app purchases available.
Which has better reviews, Piping DataBase or NDT Master?
Piping DataBase is rated higher. Piping DataBase averages 5.0 out of 5 from 2 ratings, while NDT Master averages 3.0 from 2 ratings.
Do Piping DataBase or NDT Master have ads?
Neither Piping DataBase nor NDT Master shows ads.
Which is updated more often, Piping DataBase or NDT Master?
Piping DataBase ships an update every 4 months, and NDT Master every 2 weeks. Most recently, Piping DataBase was updated on October 27, 2026 and NDT Master on October 25, 2026.

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