Muster is a social networking app that allows you to quickly plan informal events with your friends. With Muster, there's no need for emails, social media logins, or clunky text messaging. You can simply create an event, invite your friends, and get notified of their attendance, including "plus one's."

Creating an event on Muster is easy. Just answer who, what, when, and where, and you're all set. As invitees respond in or out, you'll receive notifications. You can even organize your friends into invitee groups for quicker event creation. Muster also allows you to communicate with invitees using event messages, share photos and videos from the event, and even get the weather forecast for upcoming events.

Perfect for quick get-togethers, Muster is ideal for girl's night, sports roll call, and any other "ad hoc" social event where you just need to know who's attending with as little hassle as possible. Please note that Muster is not designed for formal invitations with RSVPs on frilly stationery. It's simply a quick and easy way to get together with your friends.

Muster also offers a premium subscription called Muster Premium. By subscribing to Muster Premium, you can support the app, suppress ads, and get increased media storage limits. The subscription is available for $0.99 USD per month or $9.99 USD per year and can be managed in your iTunes account settings.

Please refer to Muster's Terms of Use and Privacy Policy for more details.