Calculate the cord length needed to mark holes on a flange's pitch circle diameter. Ideal for fabrication professionals, this tool simplifies bolt hole marking on various industrial equipment.





31+ iOS apps & games curated and reviewed
Out of 31+ flange hole marker apps on iOS, 14 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.













Calculate the cord length needed to mark holes on a flange's pitch circle diameter. Ideal for fabrication professionals, this tool simplifies bolt hole marking on various industrial equipment.


Calculate precise flange hole markings for equispaced holes, angles, and equivalent hole counts. Supports both millimeters and inches for various fabrication and engineering applications.


Access dimensional and weight data for over 70 common ASME piping components. Provides information in Metric, US Customary Units, and Inch/Fractions, with audited weights for valves, flanges, and other parts. Ensures accuracy and up-to-date information based on the latest ASME specifications.


This business app provides industrial flanges for various industries, offering calculations and industry news. It connects users through social networks and offers a wide range of flange types and sizes.


Access comprehensive piping and flange data on your mobile device. Quickly find dimensions, weights, and stud requirements for various pipe components, fittings, and flanges. Ideal for field professionals and designers needing instant access to critical information.


This utility app provides instant contact with well control services for emergencies. It also includes helpful calculators and lookup tables for casing, flange, coiled tubing, and nitrogen volume.


This application provides a digital slide rule for finding critical dimensions of high-pressure wellhead equipment, including integral flange and ring groove measurements. It functions like a traditional paper slide rule, offering convenience and accessibility for users needing these specific engineering calculations.


Engage in intense helicopter combat to rescue a hostage from relentless waves of enemies. Utilize a variety of weapons and slow-motion abilities to eliminate threats and protect your objective. Upgrade your gear and face challenging boss battles in this action-packed shooter.


This app helps sales professionals manage clients and optimize routes. It allows for precise location marking, detailed client information, follow-up records, and route tracking. Teams can collaborate by sharing client data and visit histories for improved efficiency.


This app provides a mobile reference for pipe flange specifications, including dimensions, bolt details, and types. It's designed for professionals and students in industries like oil & gas and petrochemicals, offering unit conversion between US Customary and SI.


This navigation app allows GPS users to mark and save locations with custom shapes and radii. Saved locations are accessible through your GPS client account, functioning both online and offline.




This app calculates the true position of holes based on engineering drawing dimensions and tolerances. It helps determine if hole positions meet required specifications, with or without Maximum Material Condition. It's a tool for manufacturing quality control.




Compete in thrilling races against rivals, navigating challenging obstacle courses with speed and strategy. Master precise controls to dodge, jump, and outmaneuver opponents to reach the finish line first. Each race offers unique tracks and escalating difficulty.


This utility app enables WIFI communication between a handheld device and a Patmark pin marker. It allows users to easily input text and initiate marking operations.



