As far as I know, patents can indeed be costly, and traditionally they've been associated more with physical inventions. However, when it comes to mobile apps like Hotstar Mod APK, patenting specific actions or features could still be worth considering, especially if it's a unique and innovative aspect of the app.
In terms of patenting the code or design of the app, it's a bit trickier. While patent law does cover software and design elements to some extent, it's generally more complex and challenging to obtain a patent for these aspects compared to physical inventions.
That said, it's always a good idea to consult with a patent attorney who specializes in intellectual property law. They can provide guidance on whether your specific action or feature is eligible for patent protection and help navigate the patent application process. So, if you believe you've developed something truly novel and valuable for Hotstar, it could be worth exploring the possibility of obtaining a patent.