While SocialOomph does indeed have a free plan, the features are limited and mostly lean towards Twitter management. On the free plan you can do things like schedule tweets, track keywords, shorten URL’s, and manage up to five Twitter accounts, but some of the more sophisticated features require a paid plan. If you’re looking to manage multiple social platforms aside from Twitter you will need to pay to play.

Your social media strategy is your plan of attack. But in a space like this that literally changes by the day, with surprise newsfeed algorithm updates, new channels, and audiences always ready for something new, you need to remain flexible and keep your finger on the pulse of the internet to constantly improve without getting distracted by every new shiny object.
The activity of tracking social media channels. Organizations measure and use social media analytics tools to find out where are the discussions about them, their competition and other topics of interest. Social media monitoring includes measuring opinions and sentiment of groups and influencers. It includes historical data and other information. The goal is to assess the reputation and be alerted to significant events taking place in social channels. — Dreamgrow
You’ll be able to drill down into traffic from social and isolate specific elements of activity, such as individual links. I’ve used this for differentiating between different content formats, such as text vs. image vs. video updates for the same campaign. You can overlay ecommerce goals and conversion data to see what is adding the most value, and use the learning to fine tune your social marketing.
You'll be able to set up Queries and Rules within the social tool suite to see if it produces the data that you determined was needed at the outset. If one tool doesn't produce the data the way you need to see it, then try another. Here's a link to a LinkedIn Boolean search primer. Several of the platforms reviewed have strong pureplay analytics enhanced with a Boolean search option, including Brandwatch Analytics, Crimson Hexagon, Synthesio, and Talkwalker. It's necessary for anyone using them to have a reasonably strong command of Boolean scripting.
In addition, social media platforms have become extremely aware of their users and collect information about their viewers to connect with them in various ways. Social-networking website Facebook Inc. is quietly working on a new advertising system that would let marketers target users with ads based on the massive amounts of information people reveal on the site about themselves.[109] This may be an unethical or ethical feature to some individuals. Some people may react negatively because they believe it is an invasion of privacy. On the other hand, some individuals may enjoy this feature because their social network recognizes their interests and sends them particular advertisements pertaining to those interests. Consumers like to network with people who have interests and desires that are similar to their own.[110] Individuals who agree to have their social media profile public, should be aware that advertisers have the ability to take information that interests them to be able to send them information and advertisements to boost their sales. Managers invest in social media to foster relationships and interact with customers.[111] This is an ethical way for managers to send messages about their advertisements and products to their consumers.