"How do we pay (according to the taxi meter or the estimated fare on the app)? Tariff which mentioned in the app is an estimated fare; therefore, you need to pay accordingly to the taxi meter directly to the driver."
Thank you for pointing out via PM that my link was for delivery service only.... and you want to know why?
Because no one will pay for a metered bike service... if they would someone would be doing it....
Oh, wait a minute, someone is using an app...... it is controlled by the Thailand moto taxi association.... no worries, a nonexistent company will out compete them....