Strong By Sierra 4+

Plankk Technologies

Designed for iPhone

    • 5.0 • 16 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


Feel strong, empowered and confident with Strong by Sierra!

For the first time ever, I’ve put together all my best workouts and favorite recipes into one easy-to-use, powerful app.

Whether you’re just starting your fitness journey or want to level up, Strong by Sierra will help you get results and build healthier habits that you can sustain in the long-run!

Now you can take me with you anywhere, train alongside me anytime, and nourish your body with whole foods that make you feel amazing.

Get lean, strong and more confident with a holistic approach to fitness that emphasizes wellness from the inside out!

What’s included?

Functional Strength Training

• Effective exercises you can do at home or anywhere
• Modifications for all levels of fitness
• Videos, voice over cues and detailed form tips
• Built-in warm-ups, cool-downs, & rest days

Hundreds of Recipes

• High-protein, nutrient-dense meal plans
• Dynamic recipe library full of whole foods
• Ability to build your custom meal plan from the recipe library
• Recipes for any diet or preference
• Leftovers and recipe swaps included

Community and Motivation

• Track your progress in the automated calendar to stay motivated
• Share photos with friends in the Strong by Sierra community
• Join strong, like-minded women on the same journey as you

Whatever your goals, fitness levels, or diet preferences are, the Strong By Sierra app will help you prioritize your health and feel your best!


The Strong by Sierra app is $19.99 per month or $119.99 annually. Payment will be charged to your credit card through your iTunes account at confirmation of purchase. Yearly subscriptions are billed the total annual free from purchase date. Quarterly subscribers are billed every three months. Monthly subscribers are billed per month. Your subscription will renew automatically unless cancelled at least 24 hours prior to the end of the subscription period.

Subscriptions can be managed and auto-renewal turned off in the Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term.

What’s New

Version 2.0.2

Bug fixes and feature refinements

Ratings and Reviews

5.0 out of 5
16 Ratings

16 Ratings

JNWApple ,

Great workouts. Sierra is awesome. Solid App

Really good. Need to check it out. I followed Sierra on IG. She’s legit.

Developer Response ,

Hello! We're glad that you're enjoying your workouts with Sierra on the app :)

App Privacy

The developer, Plankk Technologies, 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 Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Contact Info

Data Linked to You

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

  • Health & Fitness
  • Contact Info
  • Identifiers
  • Usage Data

Data Not Linked to You

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

  • Diagnostics

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

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