# Oilfield LWD Calculation vs Workstrings

The clearest difference is price: Workstrings at Free against Oilfield LWD Calculation's $1.99. Workstrings also leads on update cadence (every 8 days vs every 38 months) and iOS requirement (13.0 vs 16.6). On ads, in-app purchases and device support there is nothing between them.

Workstrings is free to download; Oilfield LWD Calculation costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Oilfield LWD Calculation ships an update every 38 months, Workstrings every 8 days. The most recent releases landed on September 21, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Oilfield LWD Calculation | Workstrings |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (14 ratings)](https://appshunter.io/ios/app/workstrings/id6740924535/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 38 months | **Every 8 days** |
| Monetization | — | Free |
| Size | 9 MB | 135 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [zhandos uakanov](https://appshunter.io/developer/625286817) | [SESI Holdings, Inc.](https://appshunter.io/developer/1777501957) |

## What reviewers say

### Oilfield LWD Calculation

[App page](https://appshunter.io/ios/app/oilfield-lwd-calculation/id1058846027)

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

**In-app purchases:** none


### Workstrings

[App page](https://appshunter.io/ios/app/workstrings/id6740924535)

Access and share detailed product specifications for a wide range of tubular goods and specialized joints. Easily search, view, and download spec sheets for items like drill pipe, landing string, and drill collars.

**Highlights:** Search product specifications, View detailed spec sheets, Download specification documents, Share product information, Browse tubular goods, Access Worktech Joints specs

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oilfield LWD Calculation free?

Oilfield LWD Calculation costs $1.99, with no in-app purchases.

### Is Workstrings free?

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

### Do Oilfield LWD Calculation or Workstrings have ads?

Neither Oilfield LWD Calculation nor Workstrings shows ads.

### Which is updated more often, Oilfield LWD Calculation or Workstrings?

Oilfield LWD Calculation ships an update every 38 months, and Workstrings every 8 days. Most recently, Oilfield LWD Calculation was updated on September 21, 2026 and Workstrings on June 10, 2026.

---

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