Sites offering "free" cracked software are notorious for bundling dangerous software, including ransomware, keyloggers, and spyware. Installing these can compromise your computer and personal data.
Clip Studio frequently runs sales where you can get the software at a significant discount.
Cracks often corrupt software, leading to frequent crashes, corrupted files, and lost work.
You can buy a perpetual license for the desktop version (Ver. 3.0), which is a one-time fee.
Using a keygen might seem like a way to save money, but it often results in: Lost hours of artwork due to crashes. Potential costs to repair a computer infected by malware. Risk of legal action. Official Alternatives for Clip Studio Paint EX
Suggest like Krita or Medibang Paint.