Invite a friend and you both get a free month of Plus. Share your code
from Settings — when your friend joins and solves their first problem,
the free month lands on both accounts. Up to 3 free months.

Also new:
• Choose your theme — System, Light or Dark
• Watch an ad for an extra solve, right from the home screen
• Plus and Pro no longer see banner or pop-up ads
• Confirm your email when creating an account, so your work can be
  recovered if you change phone
• Daily study reminders are now on by default

Fixed:
• Text fields no longer hide behind the keyboard
• Corrected spacing and layout across every screen, including long names
• Your new plan now shows straight away after subscribing
• A busy solver retries instead of using up your daily solve
• Settings shows the version number clearly