Nomie lets you quickly and privately track your mood, and anything that might affect it (sex, drugs, work, etc).

Nomie 4 is open source under the MIT license and can store data locally, or encrypted in the cloud w/ Blockstack

Privately track your mood and the things that can affect it. Create your own trackers, tap to track, move on with your day.

Nomie 4 is available online, uses Blockstack for encrypted storage, and is open sourced under the MIT License.