The tool does what it says, it clears unused memory used by cBots and indicators from the algohost, the Spotware team have redesigned the cTrader platform to isolate the memory consumption used by bots. If you are getting heavy memory usage in the main cTrader thread then you should contact Spotware support.
There have been many reports in the past of memory usage issues, this was due to Spotware releasing new updates that had bugs, but they should be fixed now.
When we registered with the ClickAlgo site we accepted that support will be from this website, so this is the place to report any issues or chat about products.
Hope that helps.