Checkout MSA’s Individual Result History to see all your PBs (it’s easiest to look at on a proper computer). Just type your full name into the Name field and click show. You can easily change the settings to show all your results (not just PBs), or results for a specific year, or specific age category. (There’s a Mobile View option, but it’s a lot more limited in what and how you can see the results.)
If there’s a line underneath your result time, that means there’s split times available, that look like this:
Notice that it means you have to do a bit of arithmetic to figure out the time for each 100m? That’s the one time where looking at results via SwimCentral → Results is helpful. You have to put in whether it’s Long Course or Short Course, and what the distance was, and what year it was, but you get nicer splits:
