# Doawise NDT Guide vs NDT Cert Study

The clearest difference is in-app purchases: Doawise NDT Guide at none against NDT Cert Study's 10. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. NDT Cert Study sells 10 one-off in-app purchases. Doawise NDT Guide asks for nothing beyond the download.

## The numbers

| Metric | Doawise NDT Guide | NDT Cert Study |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 59 MB | 35 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CANER YAVUZ](https://appshunter.io/developer/1877125543) | [Simon Shih](https://appshunter.io/developer/1870707682) |

## What reviewers say

### Doawise NDT Guide

[App page](https://appshunter.io/ios/app/doawise-ndt-guide/id6759167647)

**Features:** macOS Compatibility

**In-app purchases:** none


### NDT Cert Study

[App page](https://appshunter.io/ios/app/ndt-cert-study/id6785204471)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CGSB / MT Level II | $9.99 | one-time |
| CGSB / MT Level I | $9.99 | one-time |
| CGSB / RT Level I | $9.99 | one-time |
| CGSB / PT Level II | $9.99 | one-time |
| CGSB / PT Level I | $9.99 | one-time |
| CGSB / RT Level II | $9.99 | one-time |
| CGSB / UT Level II | $9.99 | one-time |
| CGSB / UT Level I | $9.99 | one-time |
| CGSB / PAUT Level I | $9.99 | one-time |
| CGSB / PAUT Level II | $9.99 | one-time |


## Frequently asked questions

### Is Doawise NDT Guide free?

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

### Is NDT Cert Study free?

NDT Cert Study is free to download, with in-app purchases available.

### Do Doawise NDT Guide or NDT Cert Study have ads?

Neither Doawise NDT Guide nor NDT Cert Study shows ads.

---

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