Do you have to pay for stride app?

Hello there! I'm just curious about something related to the Stride app. I've heard it's a popular tool for managing expenses and invoices, especially for freelancers and small businesses. But I'm not entirely sure if it's a free service or if there's a fee involved. So, can you please clarify for me: do you have to pay for the Stride app to use it, or is it available for free? Thanks in advance for your help!