An anemometer measures the strength of the wind, read as sensing change and pressure in the air around you. Tradition links it to gauging how strong outside forces are.
Where in your waking life have you met something like this lately?
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.