Sign in with the account your office gave you.
This account can sign in, but it has not been given Site Diary access. Ask whoever manages your company account to switch it on for you.
Tap who was on site. The count appears once you pick them.
Count the trades, or add your men by name — whichever tells you more. What you use is remembered for next time.
Percentage complete for each section of this project.
Tap what is holding the work up, say what the problem is, and — if you can — how many hours of work it cost. The hours are optional, and they are what an extension-of-time claim is built from later.
Photos are the entry. Four photos and Submit is a complete day. Add a line under any photo if it needs explaining — a defect, a delivery, what was closed up.