The right inflection point is honestly when you first think, "I need to think I need to think about my pricing", anything after that is already too late imo.
Hey, Manish here, CEO and Founder of Flexprice. We actually do have a lot more integrations and these particularly include stripe, razorpay, quickbooks and more, we aim to solve almost all tough use-cases, thus our focus on integrations in general and yes, while the "space" is crowded, we aim to solve the entire monetization layer, do check us out :D