If you are a piping engineer, designer, or student, Pipeflex - Pipe ThicknessDB is the app you need. Developed by Kezar Engineering, this free app offers a range of modules to aid with piping design, analysis, and management.

The app comes with a database search module that allows you to search for pipe properties and dimensions, pipe fittings, and flanges. The pipe thickness module helps you find the pipe thickness needed to withstand the inner pressure, based on ASME B31.1 and ASME B31.4. The shop module allows you to buy spreadsheets, pdf, and lisp files, updated every day.

If you need even more modules, you can upgrade to Pipeflex Pro, which includes modules such as pipe diameter calculation, project management, unit converter, calculator with built-in piping equations and database, and much more. Both apps use both SI and US unit systems and are compatible with Android 9.0.