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Get One Week Free!

Let’s do this! If you are a San Francisco resident, try one of our monthly memberships free for the first week at our Castro or Mission District locations. We hope you like what you see! Just follow the three simple steps below to get started.

Step 1. Create an Account

Create a free account to get started. You will be required to verify your San Francisco residency before your trial is fully activated.


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Step 2. Verify Your Email

Send Verification Code

Step 3. Start Your Trial

1x Per Week: Set Up Now

2x Per Week: Set Up Now

3x Per Week: Set Up Now

7x Per Week: Set Up Now
7x trial includes 3 credits

If you decide to continue after your one-week trial is complete, your membership will start and you will be automatically billed each month. You can cancel your membership at any time before your trial is complete.

You can upgrade or downgrade your membership level anytime during your trial period. Just let us know, and we can send instructions. Welcome to the MX3 Fitness family!