Happy to help! :)
We do have SAT Digital prep! You can switch to our Digital SAT Prep right from your Account Settings page. To do this, just click Edit Account Information and you'll be able to update your settings there:
Please note: our Digital SAT Prep comes with 800 practice questions and about 100 quiz questions, while our regular SAT prep comes with 1750+ practice questions. You'll have access to both when you sign up.
You can learn more about the Digital SAT here: What You Need to Know About the Digital SAT
I hope this helps! Please let me know if you have further questions! :)