For a swimmer
Put your best time in on any event page and the ladder shows the gap to each mark above you. The practice log keeps a personal best per event, holds the two pool lengths apart, and records height and weight beside the times so a swim can be read against the body that swam it.
Use a parent account to keep your swimmer’s details, times and measurements together. Join a club when you want your coach to see the same record.
For a club
A coach keeps the roster; each swimmer's parent keeps the times current from their own phone. The coach reads, and only reads — one record, one person responsible for it. Parents join through a link the coach shares in the club group, and the coach approves every request.
New clubs are checked before they go live, because a coach account can see every swimmer in a club.
What the ladder looks like
An example — 100 m breaststroke, 50 m pool.
You: 1:36.00