ElectriCalc: Engineering Tool by Yihua Xu




246+ iOS apps curated and reviewed
Finding the right engineering tool apps can be overwhelming with so many options. We've analyzed 246+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | No | May 2026 | |
| 2 | Free | — | No | Yes | Aug 2026 | |
| 3 | Free | — | No | Yes | Jul 2026 | |
| 4 | $1.99 | 4.8★ (1.2K) | No | Yes | Aug 2026 | |
| 5 | Free | 1.2★ (6) | No | Yes | Aug 2026 | |
| 6 | Free | 4.0★ (5) | No | No | Jul 2026 | |
| 7 | Free | 4.4★ (196) | No | No | Aug 2026 | |
| 8 | Free | 4.5★ (11) | No | No | Aug 2026 |














This app provides artists with rotatable 3D models of hands, heads, and feet for drawing reference. Customize poses and lighting to achieve realistic results for your artwork. Additional packs for animal skulls and foot rigs are available for purchase.


This tool analyzes your vehicle's engine performance, displaying max power and torque against RPM. It connects via an OBD II adapter to gather sensor data and generate detailed charts. Ensure compatibility before unlocking full features.


This app provides HVAC professionals with a comprehensive suite of hydronic calculation tools. It assists with tasks like valve sizing, pressure drop calculations, and radiator power estimation. The tool offers unit conversion and language selection for user convenience.


Access manufacturing classes on your mobile device. This app provides easy access to your scheduled courses, including audio, video, and interactive content, for a convenient learning experience on the go.


This app empowers security system installers and company employees to manage and configure Ajax security systems. It facilitates quick connections, adjustments, and testing of devices, offering extensive control over an unlimited number of security systems, user access, and automation scenarios.


This app offers machinists and engineers tools and resources for holemaking and finishing applications. It helps convert cutting tool parameters and select the right boring inserts. Users can also access product literature and connect with an engineering helpline.


Access the leading magazine for the metalworking industry, covering all aspects of machining processes. Explore cutting and grinding operations, tools, fluids, and machine technologies. Published 12 times a year, it's a key resource for industry decision-makers.


This app provides essential calculations and a comprehensive reference guide for oilfield operations. It offers quick access to critical data and tools, ensuring efficient and safe project execution for mud engineers and industry professionals.


This application provides quick access to steam tables with thermodynamic data for water/steam and a tool to help size saturated steam pipelines. It allows users to input pressure or temperature to retrieve relevant data and offers output in various standardized units.


This comprehensive toolkit offers over 160 electronic applications, calculators, and reference tools for engineers, students, and hobbyists. It features a multi-functional keyboard, color code tools, audio scope, frequency generator, and component references with datasheet access. The app supports real-time circuit simulations and includes a file manager for saving calculations.








This comprehensive tool offers over 500 calculations for civil engineering disciplines. It covers structural design, concrete, beams, hydraulics, foundations, surveying, soil mechanics, road construction, timber, and bridges. Supports both SI and Imperial units.





