Just wondering if I have to buy access to the free trial, and then cancel if I do not want to continue. Thanks.
No, you shouldn't pay. Just get your copy for free and make experiments with it. If you don't like what happens - just remove it and that's it. No need to pay or cancel something.
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Should be you are using the "WPFTS :: Live Search" widget. This widget is intended to show this live search data. If you don't want them, simply use the native WP Search widget.
Hope it helps.