Have you observed variations in the prices of digital gold when buying and selling through this App, and how do you believe these differences influence users’ investment choices and strategies?
It’s because jupiter want to earn profit
Welcome to the community @Aditya_S1 
Could you please provide more details about the issue?
Isn’t it that difference/variation is GST?
Additionally, some sites and apps may have promotional offers that could lead to variations when compared to Jupiter.
You can refer this thread:
Invest in the gold fund instead. They have the same price for the both just small exit load.
Sovereign Gold Bonds > digital gold