Ryde Pass includes certain number of minutes, depending on the city. The pass expires once you use up the minutes or the time limit is reached, whichever comes first. For example, a Day Pass might be valid for 24 hours and include 75 minutes of riding.
Free Unlock Pass removes the unlock fee, so you only pay for the riding time by the minute.
The pass will only apply for the first trip of a Group Ryde. All subsequent trips will be paid with credits, or the added payment method.