Does it cost anything to use PhonePe Invest on TradingView?

No, there is no extra charge for using TradingView with PhonePe. You can connect your PhonePe Invest account to TradingView without any additional subscription fees. To keep in mind:

Brokerage: You only pay the standard brokerage and statutory charges for your trades, as per PhonePe Invest’s pricing plan.

Optional upgrades: TradingView offers premium subscription plans with extra features like more chart layouts, advanced indicators, custom alerts, and longer data history. These are entirely optional and can be purchased directly from TradingView if you want.

So the trading experience itself comes at no additional cost from PhonePe Invest.