Yes, both Socialinsider and Article Insights offer a Free Trial.
Socialinsider is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Article Insights is designed for Individuals, Freelancers, Medium Business and Small Business.
The starting price of Article Insights begins at $12/Month, while pricing details for Socialinsider are unavailable.
Some top alternatives to Socialinsider includes Zoho Social, Crowdfire and SocialBee.
Some top alternatives to Article Insights includes Topic, Keyword Chef, TechValidate, SimilarContent Pro, WriterZen, Keyword Insights and ContextMinds.