App idea: An app where you can share your plans, and others can join

Use case 1: Imagine you're someone who goes to the gym frequently. Most of the time, you go alone. It would be nice to share the gym facility with someone else, and you could split the cost. <br><br>You post on the app "going to gym XYZ on 08/07 from 5pm-10pm. looking for a gym buddy to join."<br><br>Use case 2: Let's say you're going to an event (concert, festival), and you have an extra ticket that you can't seem to sell fast. It would be nice to have an app to share it with, without necessarily looking to make money. <br><br>You post on the app "going to the festival/concert xyz on 08/07 at 7pm. looking for a buddy."<br><br>Use case 3: You're a decent cook, and you're planning to make a big meal. Maybe you're feeling lonely, or maybe your family is out of town. It would be nice to share with someone. <br><br>You post on the app "cooking a meal on 08/07 at 6pm. looking for someone to share with."<br><br>Use case 4: You have a car, and you're going somewhere. You could look for a passenger to carpool with. Many people use public transit because they don't own a car, and they would love to carpool. <br><br>You post on the app "driving from xyz to abc on 08/07 at 10am. Looking for carpool buddies."<br><br>Summary: An app to share your plans, and look for others to join you.<br><br>Edit: seems like a lot of you are thinking this is like Tinder, Bumble, etc. The app is purely platonic. Imagine sharing this with a cousin/family member/friend, but instead, you can share it with the general public, and they can join you if they're interested.