This app helps firefighters and engineers perform hoseline calculations for training and certification. It offers customizable settings for specific departments and includes interactive study modes for various pump operator topics. The tool is designed for offline use and provides quick reference field topics.
2.0.0
August 24, 2026
• Finished the visual hydraulic calculator • Build custom layouts with hoses, nozzles, appliances, hydrants, standpipes, and multiple pumpers • New customizable pump charts • Share and import customizations using QR codes • Redesigned Study Mode with visual diagrams and better visual explanations • Improved profile and preset management • Refreshed resources, navigation, interface, and app icon • Performance improvements and bug fixes Thank you for using DO Calcs Buddy!
MoreHello, Thank you for the detailed feedback! I believe version 1.1.2 released on Jan 6, 2026 may have fixed all of the navigation issues on iOS. Please let me know if you continue to experience issues or have any other suggestions and I will address them promptly. Thank you for your support!
DO Calcs Buddy is a training and reference tool for firefighters and driver/operators. It helps perform accurate hoseline calculations, covering topics like friction loss, pump discharge pressure, and nozzle reaction.
Yes, DO Calcs Buddy is highly customizable. You can set up specific hoses, nozzles, and appliances to match your department's equipment and share these settings with colleagues.
No, DO Calcs Buddy is offline ready. Once installed, you do not need an internet connection to use its features, making it convenient for use in various training environments.
DO Calcs Buddy includes an interactive study mode with randomized D.O. questions on key topics like friction loss and relay pumping. The app breaks down the math step-by-step to aid learning.
No, DO Calcs Buddy is intended solely as a training and reference tool. It does not replace formal training or department-approved procedures during actual emergency operations.
DO Calcs Buddy is available on iPhone, iPad, and iPod. It is designed for iOS devices.
The latest version of DO Calcs Buddy is 1.1.2, and it was last updated on January 6, 2026. This indicates regular updates to maintain functionality and content.
DO Calcs Buddy has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals learning about the subject matter.
