Hi friend! The extension is free to use forever by default with a daily limit. If you want to remove all limits, you can pay a small, optional, one-time payment that buys access for life. I have no expectation that the extension will make me "rich" as you say — it's just that I cannot afford to offer the extension for free. If there was no paid tier, there would be no extension. So I'd appreciate it if you could rate the extension's functionality fairly!