Hi @Vikram Welcome to Dhan Community.
We have Option Greeks on Dhan app for a while now. Please check the same on this post: Introducing: Option Greeks on Dhan
If you are Options Trader, I would suggest exploring our app that is designed specifically for Option Traders. More on that here: Introducing: All New Options Trader App by Dhan (Glass Edition)
Yes, we do not ship features in sync on mobile or web; instead we continue to ship features as and when they are built, tested and ready to be made live. Also we add or remove features based on usage - so not essentially all features make across all platforms or stay across all. All updates on product features are communicated across all our channels, this community is first.