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Erin Killeen
Erin Killeen

The 2025 Challenge

with Erin Killeen

99% User Satisfaction Score

Your Access Includes

  • ✔️ 8 Week Challenge // Build lean muscle, lose fat, establish routine, and fall in love with yourself!
  • ✔️ Gym & Home Versions // In-app videos, tracking, & lifetime access
  • ✔️ A supportive community to share your journey as you achieve your goals! // PLUS $3500 Total Cash Prize (3 winners)

Testimonials

user tranformation testimonial
Kristi

"1st Place in Be Legendary 2023 Challenge"

user tranformation testimonial
Kryssy

"1st Place in Be Legendary SHRED Challenge"

user tranformation testimonial
Ali

"1st Place in Be Legendary Spring Challenge"

Challenge Highlights

challenge highlights from creator

From Erin

Erin

Start date January 6th, 2025

End date March 2nd, 2025

Open to women & men of all fitness levels, worldwide

Welcome to the 2025 Challenge, where your fitness goals become reality and your transformation story begins!

This is not just another fitness challenge; it's a commitment to yourself, to your health, and to becoming the best version of you. And it's an opportunity to push your limits, transform your body, and build serious strength.

Beginning January 6th, you’ll be following a new & improved 8 week protocol designed to help you build muscle, lose fat, and establish routine.

I can’t wait to help you get in the best shape & give you the best chance to win! It will be a grind but commit for the purpose of falling in love with yourself & your life by embracing the level of work that you’re capable of. The stakes are too high not to give it our all.

This may be your first time taking a step in your fitness journey or you may be a regular – 2025 is OUR YEAR – as individuals & as a team! I understand that staying committed to your goals can be challenging, which is why I'll take out any guesswork and make sure you have everything you need. The 2025 Challenge is the first step in building consistency this year!

Here's what you can expect:

📱 Gain access to an extensive library of exercise videos to ensure proper form and technique.

🏋️‍♂️ Follow a well-structured, 8-week workout program consisting of 5 challenging workouts per week.

✅ Gym & At-Home options for all workouts

💞 Engage with our supportive community, where you can share your progress and celebrate achievements with fellow participants.

🏆 And now, the thrilling part – a chance to win a share of $3,500 in cash prizes as recognition for your dedication and hard work!

Remember, true strength and fitness are achieved through consistent effort and dedication. Stay motivated, stay committed, and let's elevate your story.

Get ready for limit-pushing workouts, expert guidance, and a vibrant community that’s here to motivate you every step of the way.

Now is the time to reach the next level – not just in your physical fitness, but in discovering what you’re truly capable of.

Welcome to The 2025 Challenge! 💪🏼🏋️‍♂️🏆



HERE'S WHAT'S INCLUDED

✔️ Gym & Home Versions

✔️ 5 workouts/week

✔️ Glutes, Shoulders & Arms, Quads, Back & Arms, Full Body

✔️ Optional Core Workouts

✔️ Instructional Videos for exercises

✔️ Specialized in-app tracking for weights/reps

✔️ Access to in-app Community

✔️ Access to FB Group

✔️ 1-on-1 Messaging

🏆 PRIZES

✅ 1st Place: $2000

✅ 2nd Place: $1000

✅ 3rd Place: $500

HOW TO WIN

1st place and 2nd place winners will be chosen based on the top 2 final transformation results from before/after photos. The 3rd place winner will be chosen based on consistency of participating in the challenge & engagement in the community:

✔️ Transformation results

✔️ Strength progression

✔️ Participating in workouts & being a part of the community

HOW TO ENTER

  1. Sign up by purchasing this challenge

  2. Once you've purchased, submit your before photos by Sunday, January 12th, 2025, and your after photos by Sunday, March 2nd, 2025

  3. Once you've registered, make sure you READ THE IMPORTANT INFORMATION INSIDE THE PLATFORM for directions on how to proceed! 

If you have any questions, feel free to reach out to my team at support@solinfitness.com, and we’ll be happy to assist!

Start date January 6th, 2025

End date March 2nd, 2025

Open to women & men of all fitness levels, worldwide

Erin's Reviews

99% User Satisfaction Score

389 Reviews

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Sheila E.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

Loving how easy the app is to use!! Game changer for tracking macros and workouts!

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Jake T.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

This is my 2nd Program with Erin and it has changed my life in so many ways. Down 20 pounds since joining the “New you better me” program and gonna keep going till 170 and gonna put on healthy weight after that!

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Pamela M.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

I loved it all! Really felt so much burn in every single lift (which we know we love to feel!)

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Alicia K.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

Absolutely loving the program. Lots of new exercises so the videos are super helpful!!

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anna l.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

love erin’s programs on solin, love that I can track my workouts without even thinking about it. no notes app or book needed

CD

Chelsea D.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

This is a great challenge to hold me accountable and make gainz. Love the booty work

AM

Ashley M.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

I absolutely LOVE this app! The community of girls on here are so great and encouraging! Already feeling good after my 1st week of workouts with Erin!

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Allison B.

March 2026

SPRING SHRED || $100K+ CASH PRIZES

I like the layout of the app and the program is very easy to access and plug in your weights etc. I can’t wait to do another program on here soon.

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Tara P.

February 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Erin's challenges have completely transformed my life! I started my very first challenge with her back in 2021 and haven't looked back! They keep me on track and completely focused on my overall health & wellness. This last New Year Better You was such a win for me! I highly recommend Erin and all of her challenges!

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Lesley D.

February 2026

SHAPE SHIFT

The leg gains in this program are insane!! 15/10!!!

NS

Nicole S.

February 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I really enjoyed the workouts each week and being able to track your weight so that I could push myself to hit PRs. Will definitely do another challenge to keep me motivated and accountable!

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Candice R.

February 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

This is my favorite program I have ever purchased!

AR

Ashley R.

February 2026

BUILT IN SIX

Starting week 2 and loving this program! Gets me excited to get up and go to the gym! 💪🏼

LA

Lindy A.

February 2026

BUILT IN SIX

I love all of Erin's programs! After my workout I always feel so accomplished! Her app is also very easy to use ! 10 outta 10 recommend!!

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Carson A.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love this program! I love that there is a gym & home option along with videos showing how to complete exercises safely and correctly. I also love that Erin is completing this challenge with us. The community is incredible and everyone is so supportive.

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Ginger K.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love the community and workouts but workouts are often posted last minute

Cl

Caryn l.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Love it

HG

Heather G.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Maybe some audio during video to explain things to focus on

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Erica G.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love the back and abs combo. Back is my favorite part to workout and the abs at the end adds to that burn a little more. ;)

AM

Ashley M.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Love this program and app so far!!

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Aryan C.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Workouts are freaking great! They are killer. The coach is amazing she is very active in the chats and answers all of the questions! It’s been amazing already

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Kelsey H.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

so far i’m loving this entire program! it’s fun to do different exercises and learn new movements

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Carla L.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Loving it!!💪🏼👏🏼

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Joanna B.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Have a love hate relationship with all of these!

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Kaitlyn s.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Loved the burn!

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Crystal C.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Best workout of my life ❤️

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Kylie L.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Love the layout of the workouts and also how easy it is to track weights!

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Christy D.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Into week two and I’m already feeling stronger!! I love this program.

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Marissa J.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love the gym and home options. Based on the equipment I have available at home, I chose the option that works best for me. Love the programming!

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Sandra P.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Loving this program! Feeling strong and motivated 💪🏼

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Jimi M.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Great work, Erin!!!

Sc

Sheena c.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Loved it all!!!

AW

Ashton W.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Loving the challenge!!

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Rhiannon M.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

My favorite day!! I wish there was alternatives for those who are just starting or getting back in. Found others ways to help me out though and get it done 💪🏼

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BS

Brandi S.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Love this workout plan. Had a little back issue today so couldn’t add weight but won’t stop me!

AK

Alex K.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love it so far! Great program and supportive community!

CH

Chantil H.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Even though I’m engaging my core, my lower back still hurt quite a bit!

HF

Haley F.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

So user friendly!

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Ashlynn M.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Love the set ups of these workouts. It’s also super helpful to have the home version!

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Katie N.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

The assisted RDL’s with a bench were awesome. Love those!

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Minyonne S.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I love this challenge and the app makes it 10x easier to stay consistent and track my goals!

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Tay C.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

10/10 workout. This group is amazing. This challenge and team are amazing as well.

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Christina P.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

So far it’s been amazing! Little leg day flex

AS

Annie S.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

Week 2 Day 1: in the books 💪🏼 Loving the addition of core finishers!

BZ

Bore Z.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

like this workouts 🥰🤩

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Tristan R.

January 2026

NEW YEAR, BETTER YOU || $100K+ CASH PRIZES

I have been having the best time with this program and trying out this app! I’m excited for my workouts! Tracking g is super easy and very user friendly.

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Carla L.

December 2025

Sleigh The Season

Love Erin’s programming! Excited for the new one!

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Shaylee B.

December 2025

Sleigh The Season

Best decision I ever made was choosing Erin’s challenges!! Next week marks 12 weeks of consistency and I cannot believe I’m saying that!!

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Sarah M.

December 2025

Sleigh The Season

As always… absolutely unreal challenge and program from Erin!! She is a training program wizard.

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Stephanie H.

December 2025

Sleigh The Season

Great experience overall! This is my 2nd challenge on the Solin app, and I have no complaints. I love Erin’s challenges! Super informative and a great community.

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Testimonials

program transformation testimonial image from Kristi
quote

1st Place in Be Legendary 2023 Challenge

Kristi
program transformation testimonial image from Kryssy
quote

1st Place in Be Legendary SHRED Challenge

Kryssy
program transformation testimonial image from Ali
quote

1st Place in Be Legendary Spring Challenge

Ali
program transformation testimonial image from Victoria
quote

2nd Place in Be Legendary 2023 Challenge

Victoria
program transformation testimonial image from Taylor
quote

2nd Place in Be Legendary SHRED Challenge

Taylor
program transformation testimonial image from Jolee
quote

2nd Place in Be Legendary Spring Challenge

Jolee
program transformation testimonial image from Kelsey
quote

3rd Place in Be Legendary 2023 Challenge

Kelsey
program transformation testimonial image from Amanda
quote

3rd Place in Be Legendary SHRED Challenge

Amanda
program transformation testimonial image from Taylor
quote

3rd Place in Be Legendary Spring Challenge

Taylor
program transformation testimonial image from
quote

My Transformation

Erin Killeen

Learn More

251.9K views

Trending on Solin

Top 5% Creator

In 2017, I began my fitness journey and lost 70 pounds, completely transforming my life in the process. What started as a personal mission to feel better and healthier grew into a passion for the gym and a drive to help others achieve their goals. Over the years, I’ve had the privilege of helping thousands of people transform their bodies and minds. Now, I’m bringing that same expertise to you with programs designed to help you crush your goals—whether it’s losing fat, building muscle, or simply falling in love with fitness. Let’s make your transformation happen. Your journey starts here.

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