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

Join Mainstay Strength Club

Start with a 7-day free trial. Then $39/month or $390/year.

Sign Up Monthly Sign Up Annual
Allie Jackson setting up a deadlift

Everything you need to get stronger

  • Strength Workouts, Right in the App Follow a progressive strength training program designed to build strength and muscle, with your workouts delivered through the Everfit app.
  • Cardio You Can Pick and Choose Explore the cardio library and choose from HIIT, intervals, Zone 2, and more to complement your strength program.
  • Easy Exercise Swaps Need a different option? Easily swap out exercises in the app to make your workout work for you.
  • Videos and Descriptions for Every Movement See how each movement is performed with video demonstrations and clear exercise descriptions, all in the app.
  • Progress Tracking Built In Track your workout metrics in the app so you can see your progress and know what to build on next.
  • A Community Training Alongside You Connect with others following the program in the app’s community forum. Ask questions, share wins, and support each other along the way.

Start with a 7-day free trial on either plan.
Then $39/month or $390 annually — a savings of two months.

Sign Up Monthly Sign Up Annual

Coming January 2027

MAINSTAY SHIFT

Life shifts. So do we.

Are you eating well, staying active, and doing what you’ve always done, but noticing changes in your body that you can’t quite explain?

The answer isn’t necessarily eating less, exercising more, or starting another diet.

Mainstay Shift is a 16-week group coaching program designed to help you:

  • Understand your body and how nutrition, metabolism, stress, and recovery work together.
  • Build a strong foundation through progressive strength training and sustainable habits.
  • Make informed changes with education, practical strategies, and personalized guidance.
  • Pursue your goals with a realistic, sustainable approach to health and body composition.

Because the goal isn’t to get back to who you were. It’s to know how to take care of who you are now.

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

Not sure where to start?

Let’s talk through your goals in a free 15-minute consult and find the right fit for you.

Schedule Here