API Pipe Properties vs Workstrings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
API Pipe Properties
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API Pipe Properties is your compact engineering assistant for drilling operations. Access essential specs and calculations based on API pipe grades. Features: • API Pipe Grade Viewer View pipe specs: - Minimum Ultimate Tensile (psi) - Yield Stress (psi) - Minimum Elongation (%) • Tension & Collapse Load Limits Calculate tensile yield, collapse & burst pressure Based on OD, wall thickness, and grade • Drill Collar Sag Calculator Compute sag using Lubinski’s method Input: weight, OD, length, inclination • Pipe Stretch Calculator Estimate axial elongation under load Input: load, pipe specs Built for field engineers. Fast, simple, and reliable. Have a safe hitch!
Workstrings
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.
- Search product specifications
- View detailed spec sheets
- Download specification documents
- Share product information
- Browse tubular goods
- Access Worktech Joints specs
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The Workstrings International Spec Sheet finder allows you to search for, view, download, and share specifications for a variety of Workstrings' products including Drill Pipe, Landing String, Heavy Weight Drill Pipe, Drill Collars, Tubing, Completion and Intervention Tubulars, and Worktech Joints
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Verdict
The clearest difference is price: Workstrings at Free against API Pipe Properties's $1.99. Workstrings also leads on update cadence (every 8 days vs every 39 months) and iOS requirement (13.0 vs 18.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Workstrings is free to download; API Pipe Properties costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
API Pipe Properties ships an update every 39 months, Workstrings every 8 days. The most recent releases landed on September 4, 2026 and June 10, 2026 respectively.
| Parameter | API Pipe Properties | Workstrings |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (14 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 14 — better |
| Update frequency | Every 39 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 18.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | SESI Holdings, Inc. |
In-app purchases
API Pipe Properties
No in-app purchases
Workstrings
No in-app purchases
