New version (0.9.4) is now available for Android and macOS (iOS version still under review but is expected to become available later today).
This update contains quite a lot of changes:

• Major updates
  • Solo levels are now separated into three worlds each with distinct block style, mobs and boss levels at the end
  • Arcade mode difficulty tweaks
  • Ability to reroll upgrades in Arcade mode by spending Infinity Coins
  • New game soundtrack
  
  
• Other notable tweaks and fixes
  • Balls now have a slight outline and are always rendered on top to better stand out against the effects
  • Balls will no longer collide with each other
  • "Foresight" upgrade in Shop that allows you to preview ball spawn direction
  • Selecting "Cat ball" upgrade in Arcade will make balls meow on collisions
  • Fixed a bug when blocks would sometimes instantly spawn back after being destroyed
  • Levels screen will now auto scroll to last played level on launch
  • Added predictive ball direction auto correction after several missed hits
  • Fixed bug with potentially incorrect final score calculation for levels
  • UI tweaks in horizontal mode for tablets and desktop devices