Being asked to solve a captcha is read with gentle irony as having to prove you are human. Tradition ties it to feeling tested, mechanical, or not taken at your word.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.