Dreams, is first and foremost a journal, so it includes features like:

Password Protection
The ability to set Tags/Categories and Titles for entries
Autosaving after every keystroke
The ability to create multiple entries per day
The ability to create past entries
The ability to search entries based on words, date, category or theme
Tons of Fonts
Inspiring backgrounds
etc.

In addition to the journaling features,key themes in your dreams are automatically recognized and listed below your entry. Tap on one of these themes to see possible meanings or even to see how many times this theme has popped up in your dreams.
If journaling isn't your thing, you can always up just look up the meaning of word or phrase using the built in dream dictionary. Our dream dictionary has thousands of entries, but we don't claim to be perfect. If you find that our dicitionary doesn't contain a definition for a topic you're looking for, write us and we'll include your suggestion in our next update.