Test-takers need a way to measure and track their progress over time, so they know how they are improving.
Specifically:
  1. Capture test data, target test score and current baseline score and estimate number of prep hours likely needed to hit target score.
  2. Send reminders and alerts (user can modify in settings) to nudge user back on platform.
  3. Accountability tracker can be like "close your ring" in Apple Fitness.