But unless it's backed up by some biometrics, there is no real way to know who used the app and when. Leave your phone unlocked on a bar counter and someone can edit you right into jail etc etc
All I'm saying is some wheels don't need reinventing. Sometimes just minor tweaks are enough.
When you finish an entry, you electronically sign it with a PIN, password, or biometrics. That's how electronic lab notebooks and medical records work. This is similar to a paper notebook where you draw a line then sign/initial each entry, and if it's critical, you have a witness sign it.
Last edited: