# NDT Reference vs ECNDT 2023

The clearest difference is device support: NDT Reference at 4 against ECNDT 2023's —. ECNDT 2023's advantage is iOS requirement (11.0 vs 15.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | NDT Reference | ECNDT 2023 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/ndt-reference/id577761888/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 11 months | — |
| Monetization | Free | — |
| Size | 7 MB | 21 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac** | — |
| Age rating | 4+ | 17+ |
| Developer | [The British Institute of Non-Destructive Testing](https://appshunter.io/developer/554280129) | [AIM PORTUGAL - VIAGENS, CONGRESSOS E INCENTIVOS, LDA](https://appshunter.io/developer/1482130540) |

## What reviewers say

### NDT Reference

[App page](https://appshunter.io/ios/app/ndt-reference/id577761888)

This app provides essential mathematical formulas and constants used in various non-destructive testing (NDT) methods. It's designed for NDT practitioners and students to easily access and understand the calculations involved in radiography, ultrasonics, magnetic particle testing, and eddy current testing.

**Highlights:** NDT mathematics and formulae, Radiography and radiology formulas, Ultrasonics formulas and velocities, Magnetic particle testing formulas, Eddy current testing formulas, Reference for NDT practitioners and students

**In-app purchases:** none


### ECNDT 2023

[App page](https://appshunter.io/ios/app/ecndt-2023/id6450366896)

**In-app purchases:** none


## Frequently asked questions

### Is NDT Reference free?

NDT Reference is free to download, with no in-app purchases.

### Is ECNDT 2023 free?

ECNDT 2023 is free to download, with no in-app purchases.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*