Our website provides a free download of MAPP XT 1.1.5. This free software was originally created by Meyer Sound Laboratories, Inc. MAPP XT is categorized as Photo & Graphics Tools.
From the developer:
MAPP XT is a free to use system design tool for Windows OS. The measurements in MAPP XT are independently verifiable and highly precise (1/24th octave frequency resolution), so users can trust that their predictions will closely match the results onsite.
You may want to check out more software, such as ARC XT PRO, ARC XT or DoubleCAD XT, which might be related to MAPP XT.