HOTclash is an add-on software module to 3D Plant Design Systems (currently available only on PDMS, E3D and CADMATIC). Clash-checks for piping systems under such 'deformed conditions' are usually never performed. In reality, piping systems deform due to their own dead-weight during installed/shut-down condition, during hydrotest as well as during operating conditions. Unfortunately, such 'Clash-check' is performed using only 'as-designed' drawings/3D models. either manually on General Arrangement drawings or nowadays in a 3D Plant model.

In order to comply with space constraints, piping designers check for interferences between piping and the adjacent structures, concrete buildings, equipment and reserve volumes for walkthrough, maintenance space etc.

Increased reliability in system operation and enhanced safety are added benefits. The table below shows the number of Google Play apps in each category.HOTclash enables users to benefit immediately from the ability to avoid future lost revenue and productivity due to expensive repair costs culminating from a 'shutdown' scenario stemming from problems that could have been detected beforehand using HOTclash. Many of the applications in this list are distributed pre-installed on top-selling Android devices and may be considered bloatware by some people because users did not actively choose to download them. The barrier for entry on this list is set at 500 million for free apps to limit the size of this list. There are numerous Android apps that have been downloaded more than one million times from the Google Play app store, and it was reported in July 2017 that there are 319 apps which have been downloaded at least 100 million times and 4,098 apps have been downloaded at least ten million times. This list of most-downloaded Google Play applications includes most of the free apps that have been downloaded at least 500 million times, and most of the paid apps that have been downloaded at least one million times on unique Android devices.

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