Three weeks after any inspection app goes live, the same thing happens. Usage holds, then it slides. By month three the forms are filled in the site office at day's end, not on site where the hazards are. That is not laziness. It is friction, and friction is the whole game.
Here is what a UK site safety inspection must actually cover, a template you can use today, and why the report method that wins runs in an app every engineer already has open.