# SSTDrillPipe vs TallyRig

The clearest difference is in-app purchases: SSTDrillPipe at none against TallyRig's 1. SSTDrillPipe also leads on iOS requirement (7.1 vs 15.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. TallyRig sells 1 one-off in-app purchase. SSTDrillPipe asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.0 for SSTDrillPipe against 4.0 for TallyRig. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | SSTDrillPipe | TallyRig |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/sstdrillpipe/id919540380/reviews) | [4.0 (1 ratings)](https://appshunter.io/ios/app/tallyrig-well-control-calc/id6758645641/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 months |
| Monetization | Free | Free |
| Size | 3 MB | 33 MB |
| Requires iOS | **7.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sub Surface Tools, LLC](https://appshunter.io/developer/919540379) | [嘉炜 丰](https://appshunter.io/developer/1759511819) |

## 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


### TallyRig

[App page](https://appshunter.io/ios/app/tallyrig-well-control-calc/id6758645641)

This app provides a suite of 17 oilfield and drilling calculators designed for field use. It features a digital tally-book history to save and share results, with offline functionality and a user-friendly interface for rig environments. Supports multiple languages and unit systems.

**Highlights:** 17 oilfield & drilling calculators, Digital tally-book history, Offline-first functionality, Sunlight Mode for outdoor readability, Glove-friendly interface, Formula review and show-work, Imperial and Metric unit support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TallyRig Pro | $14.99 | one-time |


## Frequently asked questions

### Is SSTDrillPipe free?

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

### Is TallyRig free?

TallyRig is free to download, with in-app purchases available.

### Which has better reviews, SSTDrillPipe or TallyRig?

SSTDrillPipe and TallyRig are both rated 4.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do SSTDrillPipe or TallyRig have ads?

Neither SSTDrillPipe nor TallyRig 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.*