Tail Tracker, Upword Notes and Dear Days (free at the app store)
A number of paid apps are currently going for free on the app store. An example is Dear Days. It used to sell for $1.99. Users rely on it to write their journal. It has a feature that allows you to transform your diary into an infographic. UpWord Notes used to sell for $2.99. For a limited time you can download it for free. Just like Dear Days, Tail Trackers was selling at $1.99. You don't have to spend that much anymore. It is for free. Keep in mind that the developer can choose to rise the prices up anytime they want to so take advantage of this offer while it is still available.