Built for strength. Made for life.

Mainstay Performance brings together thoughtful strength training with guidance around nutrition, recovery, and everyday habits to help you feel strong, capable, and confident in what your body can do through every stage of life.

Allie Jackson setting up a deadlift

Structured strength training, delivered in the app

Mainstay Strength Club

You don’t need more random workouts. You need a program.

Mainstay Strength Club is progressive strength training with a plan behind it. Each week, you’ll get programming to help you get stronger, build muscle, and make progress you can actually see.

What about cardio? There’s a whole library for that, with plenty of options to complement your strength training.

Allie Jackson doing a pull-up in her home gym

Your membership includes:

  • Progressive Strength Programming Follow structured training cycles designed to help you build strength and muscle and make measurable progress over time.
  • Exercise Swaps Built In Easily swap exercises right in the app when you need a different option.
  • An Optional Cardio Library Choose from a variety of cardio workouts when you want to add more conditioning to your week.
  • Warm-Ups, Cool-Downs + Exercise Descriptions Everything you need to walk into the gym, open the app, and get to work.
  • Training Delivered Through the Everfit App Access your workouts, video demonstrations of each movement, track your progress, and stay connected wherever you train.
  • Join the Mainstay Strength Club Community Ask questions, share wins, and train alongside others following the same program.
  • Simple, Flexible Membership Join for $39/month or save two months with a $390 annual membership. Monthly memberships can be canceled anytime right in the app.
Allie Jackson riding a bike erg

Fully customized programming and personal training

Premium Coaching

Sometimes you need more than a program designed for the group. Premium Coaching offers individualized support based on your goals, needs, and the level of coaching you’re looking for, from custom fitness programming to comprehensive wellness coaching and 1:1 personal training.

Custom Programming

$295/month · 3-month commitment

Individualized training built around your goals, schedule, equipment, and needs, with virtual check-ins, ongoing adjustments, and support through the Everfit app. A great fit if you’re returning from an injury, training for a specific event or performance goal, working around limitations, or simply need more individualization than a general strength program provides.

This option is focused on training and does not include comprehensive nutrition, habit, or wellness coaching.

Custom Programming + Wellness Coaching

$450/month · 3-month commitment

Everything included in Custom Programming, plus individualized coaching for the pieces outside the gym that affect how you feel, perform, and progress. We’ll look at nutrition, recovery, sleep, stress, habits, and accountability together, and adjust the approach as your needs change. When needed, Mainstay can also help you connect with the right health and wellness professionals so you aren’t left trying to piece everything together on your own.

This option is best for someone who wants a coach in their corner for the whole picture, not just their workouts.

1:1 Personal Training

Virtual + in-person · Pricing varies by package

Personal training includes individualized 1:1 sessions along with the comprehensive wellness support above. You’ll also receive additional workouts through the Everfit app, designed around your goals and what we’re working on together, so your progress isn’t limited to the time spent in training sessions. Whether training virtually or in person, your coaching can extend beyond exercise to include nutrition, recovery, habits, accountability, and the other pieces that support your goals.

Personal training availability is limited, and pricing varies based on session length, frequency, and package.

Meet your coach

Meet Your Coach

Hi, I’m Allie.

I’ve spent more than 15 years coaching people to get stronger, and a lot of that time learning that the “best” program isn’t worth much if it doesn’t work in someone’s actual life.

I hold both bachelor’s and master’s degrees in Exercise Science & Health Promotion and have worked across personal training, strength programming, health coaching, behavior change, yoga, and women’s fitness. That combination shapes how I approach programming today: evidence matters, progression matters, and so does creating training that people can realistically keep doing.

I started Mainstay Performance to bring all of that experience together, to help people build strength, navigate change, and feel more confident in what their bodies can do. Whether through training, nutrition, or everyday habits, Mainstay is about giving you the structure, support, and tools to keep moving forward through every stage of life.

  • M.S. Exercise Science & Health Promotion
  • Certified Master Health Coach
  • Certified Personal Trainer
  • Certified Nutrition Coach
  • Certified Pre & Postnatal Fitness Coach
  • Registered Yoga Teacher
Allie Jackson seated on a bench in her home gym, smiling

Get in touch

Have a question? Let’s talk.