244+ iOS apps curated and reviewed
Oilfield Calc is the household name in oilfield calc, but it's far from the only option. We track 244+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $9.99 | — | No | No | Jul 2026 |
| 2 |  | Free | — | No | No | May 2026 |
| 3 |  | $1.99 | — | No | No | Aug 2026 |
| 4 |  | $0.99 was $1.99 | — | No | No | Aug 2026 |
| 5 |  | $1.99 | — | No | No | Aug 2026 |
| 6 |  | $1.99 | — | No | No | Aug 2026 |
| 7 |  | $1.99 | — | No | No | May 2026 |
| 8 |  | Free | — | No | Yes | Jul 2026 |
This app provides essential hand calculations for oilfield specialists and petroleum engineers. It offers a comprehensive collection of formulas and tools for drilling, exploration, and mud engineering, aiming to simplify complex calculations.
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.
This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.
This app provides on-the-go hydraulic fracturing calculations for the oilfield. It helps determine chemical rates, fluid clean-up, proppant amounts, and pump speeds. Includes a unit converter for common oilfield measurements.
This tool provides essential calculations for oil well chemical applications. It features the most frequently used formulas for field operations, designed for efficiency and accuracy.
This application provides essential calculations for directional drilling in oil and gas exploration. It offers multiple methods for calculating directional drilling data and dogleg severity between survey points. Designed for ease of use, it supports professionals in the field.
This utility app helps oil and gas professionals quickly calculate theoretical strokes for downhole operations. It assists in spotting pills and clearing pipes by providing surface-to-bit and surface-to-surface stroke calculations. Designed for ease of use, it's an essential tool for anyone working with downhole volumes.
This app supports oilfield engineers and specialists with daily operations. It offers a news generator, over 300 calculators for drilling and production, reference tables, market prices, and a unit converter.
This app provides essential data and calculations for oil and gas professionals involved in coiled tubing operations. It includes dimensions, stretch tables, and nitrogen calculations based on API data to support daily operations and ensure safe working times.
This tool simplifies Equivalent Circulating Density (ECD) calculations for oilfield professionals. It allows for easy input of pressure, depth, and mud weight, providing instant, accurate ECD values. Supports both imperial and metric units for global operations.
