Muster 4+

Getting together made easy

Stalefish Labs

Designed for iPhone

    • 4.9 • 36 Ratings
    • Free
    • Offers In-App Purchases


Quickly plan informal events with your friends and find out who's in and who's out. No need for emails, social media logins, or clunky text messaging when you can quickly create an event, invite friends, and get notified of their attendance, even "plus one's." It's just enough for quick get-togethers and nothing more!

Create an event by simply answering who, what, when, and where, and receive notifications as invitees respond in or out. Organize friends into invitee groups for quicker event creation, communicate with invitees using event messages, share photos and videos from the event, even get the weather forecast of upcoming events. Perfect 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. Want to send a formal invitation on frilly stationery with an RSVP? Well this app isn't for you! But it's perfect if you just want a quick and easy way to get together.

Can't bear the thought of doing anything outside of text messaging? We've got you covered...just use Muster inside Messages to create and respond to events for a conversation.

Muster Premium:
Subscribe to Muster Premium to help support the app, suppress ads, and get increased media storage limits. If you choose to subscribe to Muster Premium, payment will be charged to your iTunes account, and your account will be charged for renewal 24 hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase. The current price for Muster Premium is $0.99 USD monthly or $9.99 USD annually, and may vary from country to country.

Terms of Use:

Privacy Policy:

What’s New

Version 3.1.0

The most requested Muster you can create and respond to events directly in a Messages conversation using the Muster iMessage app extension. Event settings also now supports co-hosts, where you can designate attendees as co-hosts so they can help you invite others. Also a few bug fixes and improved notifications. Enjoy!

Ratings and Reviews

4.9 out of 5
36 Ratings

36 Ratings

AJonesTN ,


One of the first thinks that captivated me about Muster was its clean design. Muster boasts a impressive array of features to meet your Event planning needs. From creating the event, posting pictures of the event, weather, and maps. What truly sets it apart is the minimum/maximum feature. If you have limited tickets or limited number of golfers needed for a tee-time, you can set those parameters. Reminder are set to ensure no party, game, concert, or tee-time is missed. Highly recommended!

Antimindy ,

Works great!

It’s easy to use and makes it a lot easier to get groups together. Highly recommend it to reduce chaos in organizing events from team sports to group dinners.

Poopdud ,


This app is exactly what you need to get people together at a time and a place super easy. Needed to get some people together on a boat worked wonders!!!

App Privacy

The developer, Stalefish Labs, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content

Privacy practices may vary, for example, based on the features you use or your age. Learn More

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