Yes, both AddSearch and Splunk Enterprise offer a Free Trial.
AddSearch is designed for Large Enterprises, Medium Business and Small Business.
Splunk Enterprise is designed for Large Enterprises and Medium Business.
Pricing for AddSearch Starts at $25/Month when Billed Yearly whereas for Splunk Enterprise Starts at $150/Month.
Some top alternatives to AddSearch includes Site Search 360, Swiftype Search, SearchBlox Search, Algolia Site Search, Elasticsearch, Sajari, Searchanise, Searchbar, CloudSh and SEOcrawl.
Some top alternatives to Splunk Enterprise includes Reveal, Sprinkle Data, Data Monkey, Knarr, Iteratively, Splunk Cloud, Easy Insight, dataSights, Squirro Service Insights and Data Suisse.