Like Hootsuite, you can schedule your tweets in advance and the free service allows you to access five different social media accounts across Twitter, LinkedIn and Facebook. You can schedule up to five messages per hour for the free service. There are numerous charts and graphs to show you various statistics, such as the number of LinkedIn posts per day as you can see below:
Gremln has lots more to it than just stats, though. It works with Brev.is or Bit.ly to shorten and track your URLs in your Tweets, you can add RSS feeds to your dashboard, and it even has a UI that looks a lot like Hootsuite, if you don't want to leave that behind.
There are various paid plans that start at $6 a month and expand the number of Tweets per hour scheduled, the number of saved report templates, and that add the ability to include Web analytics so you can track the results of your social networking campaigns to see if they actually resulted in increased Web traffic. And there are ways for work teams to share and jointly manage their accounts, something that Hootsuite isn't good at. If you are obsessive about your Klout score, you can link to your account and watch it ebb and flow as the company tweaks its algorithms too.