Stream Hatchet is a great way to analyze your Twitch Channel statistics. When the service first released it was free to the public for a short amount of time. After the free trial basis was over they went to a subscription based system, until now.
Starting April 11th, Stream Hatchet will be free to all users, for those who dropped Stream Hatchet due to the subscription cost, you can now enjoy their service for free again. Click the link below to read their announcement via their blog.