Not with the Standard Plan! (see the question above for clarification on what the standard plan is)
With the Advanced Plan, I highly recommend students buy the PrepPros Complete Guide to Digital SAT Math and the answer explanation videos, which total to around $50.
OnePrep and PrepPros are both great resources for practice problems. However, PrepPros has a greater share of niche challenging problems. If you're going for an 800, these are essential! But for a 700-750, these niche problems can end up a distraction from the core material. That's why I no longer buy every student the PrepPros book (like I did in the fall).