# SSTDrillPipe vs DDToolsPro

The clearest difference is price: SSTDrillPipe at Free against DDToolsPro's $9.99. SSTDrillPipe also leads on in-app purchases (none vs 2) and iOS requirement (7.1 vs 18.2). DDToolsPro's advantage is chart position (#177 vs unranked). On ads and device support there is nothing between them.

SSTDrillPipe is free to download; DDToolsPro costs $9.99 up front. DDToolsPro sells 2 in-app purchases, starting at $12.99 per month. SSTDrillPipe asks for nothing beyond the download.

## The numbers

| Metric | SSTDrillPipe | DDToolsPro |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/sstdrillpipe/id919540380/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Best chart rank | — | **#177** |
| Size | 3 MB | 8 MB |
| Requires iOS | **7.1** | 18.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sub Surface Tools, LLC](https://appshunter.io/developer/919540379) | [Michael Blake](https://appshunter.io/developer/1443250004) |

## What reviewers say

### SSTDrillPipe

[App page](https://appshunter.io/ios/app/sstdrillpipe/id919540380)

Access essential mechanical properties and data for drill pipe. View detailed information like tensile strength, collapse pressure, and capacity. Visualize key data through graphs in landscape mode.

**Highlights:** Mechanical properties data, Tensile strength, Collapse pressure, Drift diameter, Capacity and displacement, Graphical analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### DDToolsPro

[App page](https://appshunter.io/ios/app/ddtoolspro/id6755078356)

**Currently charting:** #177 Top Paid · Utilities (US App Store)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DD Tools Pro Unlock - Monthly | $12.99 | per month |
| DD Tools Pro Unlock - Annual | $129.99 | per year |


## Frequently asked questions

### Is SSTDrillPipe free?

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

### Is DDToolsPro free?

DDToolsPro costs $9.99, and also offers in-app purchases.

### Do SSTDrillPipe or DDToolsPro have ads?

Neither SSTDrillPipe nor DDToolsPro shows ads.

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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.*