OilField iHandbook vs Workstrings
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OilField iHandbook
This app provides essential calculations for oil and gas exploration and drilling specialists. It includes formulas for common operations and supports various units of measurement for convenience.
- Annular Volume calculation
- Annular Velocity calculation
- Equivalent Circulating Density
- Formation Fracture Gradient
- Hydraulic Horse Power
- Kill Weight Mud calculation
- Support for multiple units
Read full descriptionHide full description
OilField iHandbook application made for all specialist who are involved in Oil & Gas exploration and drilling. OilField iHandbook has most useful calculations which are using in daily Drilling and Oilfield operations. Also this application is the good supporting tool for oilfield Engineers. Application builded by last updated API (American Petroleum Institute) Data. Tested on oilfield of: US,Canada,UAE,Oman. P.S.: Quick Calculation - Safe Operation Time. The app uses formulas from Drilling Data Handbook (IFP Publications). OilField iHandbook. include: * Annular Volume; * Annular Velocity; * Buoyancy Factor; * Equivalent Circulating Density; * Formation Fracture Gradient; * Hydraulic Horse Power; * Mud Gradient; * Pipe Displacement; * Pump Outputs; * True Vertical Depth; * Well Hydrostatic Pressure; * Kill Weight Mud; The following units are supported: * Inches or Millimeters; * Feet or Metres; * Barrels or Cubic Meters; * PPG or SG; * PSI or kPa; Please email us on info@oilfieldengineer.com for clarifications or corrections. Good Luck in Your Job...
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
Read full descriptionHide full description
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
Screenshots
Verdict
The clearest difference is review sentiment: Workstrings at 100% against OilField iHandbook's 0%. Workstrings also leads on price (Free vs $1.99) and update cadence (every 8 days vs every 6 months). 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; OilField iHandbook costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
OilField iHandbook ships an update every 6 months, Workstrings every 8 days. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.
| Parameter | OilField iHandbook | Workstrings |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | — | 5.0 (14 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | — | 14 — better |
| Update frequency | Every 6 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | zhandos uakanov | SESI Holdings, Inc. |
Customer experience
OilField iHandbook
Workstrings
In-app purchases
OilField iHandbook
No in-app purchases
Workstrings
No in-app purchases
Questions
Is OilField iHandbook free?
Is Workstrings free?
Do OilField iHandbook or Workstrings have ads?
Which is updated more often, OilField iHandbook or Workstrings?
Other comparisons
