# Material Numbers vs Ultimate NDT Pocketbook

The clearest difference is in-app purchases: Material Numbers at none against Ultimate NDT Pocketbook's 2. Material Numbers also leads on update cadence (every 2 days vs weekly) and iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Ultimate NDT Pocketbook sells 2 in-app purchases, starting at $5.99 per month. Material Numbers asks for nothing beyond the download.

Material Numbers ships an update every 2 days, Ultimate NDT Pocketbook weekly. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Material Numbers | Ultimate NDT Pocketbook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (6 ratings)](https://appshunter.io/ios/app/ultimate-ndt-pocketbook/id6759848851/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Weekly |
| Monetization | — | Subscription |
| Size | 14 MB | 52 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ASMEIX CORPORATION](https://appshunter.io/developer/911716652) | [james rose](https://appshunter.io/developer/1881188690) |

## What reviewers say

### Material Numbers

[App page](https://appshunter.io/ios/app/material-numbers/id6503355283)

**Features:** macOS Compatibility

**In-app purchases:** none


### Ultimate NDT Pocketbook

[App page](https://appshunter.io/ios/app/ultimate-ndt-pocketbook/id6759848851)

This app provides nondestructive testing (NDT) technicians with a comprehensive toolkit for field inspections. It offers essential calculations, references, and guidance across various NDT methods, with core features accessible offline. A subscription is required for full access.

**Highlights:** Field calculators for exposure, barricade distance, and more, Inspection references for RT, UT, ET, and VT, Technician tools for quick calculations and code helpers, Offline functionality for core features, Multiple language support, Support for various NDT methods

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| NDT Pocketbook Premium (Monthly) | $5.99 | per month |
| NDT Pocketbook Premium (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is Material Numbers free?

Material Numbers is free to download, with no in-app purchases.

### Is Ultimate NDT Pocketbook free?

Ultimate NDT Pocketbook is free to download, with in-app purchases available.

### Do Material Numbers or Ultimate NDT Pocketbook have ads?

Neither Material Numbers nor Ultimate NDT Pocketbook shows ads.

### Which is updated more often, Material Numbers or Ultimate NDT Pocketbook?

Material Numbers ships an update every 2 days, and Ultimate NDT Pocketbook weekly. Most recently, Material Numbers was updated on November 8, 2026 and Ultimate NDT Pocketbook on November 5, 2026.

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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.*