211+ iOS apps curated and reviewed
Out of 211+ gas rate calculator apps on iOS, 15 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | $4.99 | — | No | No | Jul 2026 |
| 2 |  | $4.99 | — | No | No | Jul 2026 |
| 3 |  | Free | — | No | No | May 2026 |
| 4 |  | Free | — | No | Yes | May 2026 |
| 5 |  | Free | — | No | No | May 2026 |
| 6 |  | $1.99 | — | No | No | Jul 2026 |
| 7 |  | Free | — | No | Yes | Jul 2026 |
| 8 |  | Free | 4.5★ (98) | No | Yes | Jul 2026 |
Calculate domestic gas rates for Imperial and Metric gas meters up to 16 cubic metres. This tool is designed for Gas Service Engineers and Installers, offering the ability to email results directly.
This app provides tools for calculating gas rates, performing tightness and let-by tests, and converting units. It includes a comprehensive guide with detailed procedures and supports various gas types and meter configurations for accurate results.
This tool simplifies calculating natural gas heat input and gas rates for installations. It allows users to time their meter, input readings, and get instant results, eliminating the need for manual charts or complex calculations.
This app provides quick conversions for various gas measurements, including natural gas and LPG, as well as water volumes and flow rates. It also handles metric to imperial measurements and electrical unit conversions.
This tool simplifies calculating heat input and gas rates for natural gas installations. It offers an enhanced version with adjustable calorific values and accommodates shorter timing intervals for metric meters, providing quick and accurate results without manual chart lookups.
This comprehensive app helps gas, oil, and plumbing professionals streamline their business operations. It allows for the creation of industry-specific certificates, issuance of quotes and invoices, and efficient job scheduling. Manage your team, customers, and finances from any device, anywhere, saving time and boosting revenue.
Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.
This application assists operators of natural gas production wells that use Well Master plungers. It aids in deliquification and production optimization for improved well performance.
Easily calculate natural gas orifice flow rates using the AGA 3 standard. This utility app allows users to determine MCF production for a given duration, save calculations, and export data to CSV. It functions offline, requiring no cell service.
This utility app calculates gas flow rates in pipes, accounting for friction and fitting losses using compressible isothermal equations. It offers extensive databases for materials, fittings, and gases, with customizable units and reporting options.
Calculate liquid flow rate, pipe diameter, or velocity with ease. Customize units for diameter, velocity, and flow rate, and set your preferred decimal places for precise results.
Find the cheapest fuel prices in your area and earn rewards for saving money on gas. This app helps you locate stations, compare prices, and redeem points for discounts through various activities like snapping receipts and playing games.
Easily calculate your vehicle's gas mileage on a single screen. Track your fuel efficiency over time with historical data and quick comparison features. Ideal for anyone needing a straightforward way to monitor MPG.
Streamline your gas and heating business with digital reporting and invoicing. Automate customer reminders, create PDF reports, and integrate with accounting software. Eliminate paper forms and manage all your job documentation efficiently.
This utility app helps oilfield professionals quickly calculate pump rates, volume pumped, and time spent pumping. Simply input the pump coefficient and tap along with the pump strokes for instant results.
Easily convert volumetric to weight-based units for 15 industrial gases. Get additional information like enthalpy and boiling points. Simple three-step process for quick calculations.
This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.
This app offers a versatile calculator with both basic and scientific functions. It includes advanced features like currency and unit conversions, customizable themes, and history tracking. Optimized for both portrait and landscape modes, it's designed for users needing precise calculations and conversions.