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Erin Killeen
Erin Killeen

SHAPE SHIFT

with Erin Killeen

98% User Satisfaction Score

Your Access Includes

  • ✔️ Proven 5-Day Training Split: Build curves and drop unwanted fat with a program designed to actually change your body... from home or the gym!
  • ✔️ 30–60 Minute Workouts. Oh, you're busy?? No problem.
  • ✔️ $85,000+ USD of cash prizes // 6-Week Challenge starts October 13th, 2025

Transformations

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: October 13th, 2025

END DATE: November 23rd, 2025

OPEN TO: Women & men of all fitness levels, worldwide

THIS ISN’T A PHASE — IT’S A SHIFT.

WHAT YOU GET WITH "SHAPE SHIFT"

✔️ Gym + Home Program Access for Life
✔️ 5 Workouts per Week
✔️ Video Demos + Substitutions
✔️ Tracking for Reps + Weights Inside the App
✔️ Private Facebook Group + 1-on-1 Messaging
✔️ Supportive Community

No matter where you’re starting, SHAPE SHIFT is designed to transform your body, elevate your energy, and build unstoppable momentum for your journey. For 6 weeks, we’re training with intent: you’ll follow structured workouts & progressive training

Whether you're in the gym or training at home, you’ll follow a clear, strategic split to push your limits, shape your physique, and create momentum that lasts.

WHAT MAKES THIS CHALLENGE DIFFERENT?

GYM PROGRAM BUILT FOR RESULTS

This is more than “just going to the gym.” The 5-day split is structured for maximal strength, muscle building, and body recomposition:

  • Day 1: Glutes + Hams

  • Day 2: Shoulders + Back

  • Day 3: Quads

  • Day 4: Chest + Arms

  • Day 5: Glutes

Each workout blends strength + hypertrophy work with intentional finishers so you leave the gym feeling accomplished (and sore in all the right ways). You’ll lift heavy, build curves, and get stronger both mentally and physically.

HOME PROGRAM THAT STILL HITS

No gym? No problem. These 30–45 min home workouts are built to be efficient and effective using just a pair of dumbbells.
Think circuits, EMOMs, and core finishers that challenge you without eating up your whole day... Perfect for busy schedules so NO excuses.

PS: If you're new to training, don't stress. This is actually a perfect place to start. You’ll learn proper form, build habits, and gain confidence in and out of the gym.

ZERO GUESSWORK

Every workout is fully mapped out for you with:
✔️ Video demonstrations
✔️ Substitutions for injuries/equipment
✔️ In-app progress tracking
✔️ Clear instructions for each movement

BUILT-IN ACCOUNTABILITY

Rest assured that you’re not doing this alone. You’ll be surrounded by a community of people all going through the same thing — to go through the challenge together, share advice, cheer each other on and be locked in together.

We’ve got private messaging, group check-ins, and real support from me to help you get through these next 6 weeks!


SOLIN SHOWDOWN

This challenge is also part of the 2nd annual Solin Showdown: $85k Transformation Challenge – with $85,000 in cash prizes up for grabs!

The Solin Showdown features 30+ unique challenges hosted by top creators on Solin, and this challenge is one of them.

By joining, you're automatically part of the overall competition that includes participants from all hosted challenges.

Prizes

One set of 26 winners will be selected from across all challenges. The winners will split $85,000 in cash prizes based on their best transformations (be sure to read the transformation instructions carefully once you join!).

Winners will be chosen at the sole discretion of Solin. It’s possible that none or multiple winners could come from this specific challenge.

Prize Breakdown:

💸 26 total winners splitting $85,000

💸 $50,000 for 1 first-place winner

💸 $2,000 for 10 second-place winners

💸 $1,000 for 15 third-place winners

How It Works

Once you sign up, you’ll gain instant access to the challenge mobile app, a private community, and the welcome area.

Leading up to October 13th, we’ll be hanging out in the community, introducing ourselves, and motivating each other.

Important Dates:

  • October 10th: The workout program will be released in the app (3 days before the official start).

  • October 13th: The challenge begins! You’ll track your sets, reps, weights, and progress in the app.

  • October 17th: Deadline to upload 3 "before" photos (front, side, back) by 11:59pm ET.

  • November 28th: Deadline to upload 3 "after" photos by 11:59pm ET.

Want to Compete for Prizes?

If you want to be in the running for cash prizes, make sure to upload your before and after photos by the deadlines above.

Full instructions for uploading photos will be available in the app – participating is completely optional.

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: October 13th, 2025

END DATE: November 23rd, 2025

OPEN TO: Women & men of all fitness levels, worldwide

Erin's Reviews

98% User Satisfaction Score

326 Reviews

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

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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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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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Kristi W.

December 2025

SHAPE SHIFT

I'm so very grateful for this program with Ektfit, not only did I gain strength but I saw what I was made of. I passed my goal and I feel like a winner 💫 this challenge came at the most difficult time in my life. My father-in-law passed away, my husband just lost his job the very next day we found out they were closing his company's cutter in 5 weeks, I found this a glimmer of hope in solving my health and helping my family. I went from 29% body fat to 24% in 6 weeks. Insane lost 12lbs. Thankfully my husband found another job, and I turned around and did this for myself. To see how far I can push. I sure did! I cried pretty often in the middle of workouts, staying in good health truly protected my mental health during this time. As a mom of 4, I would highly recommend this app, based on the ability to work out from home and the gym. The community gave me accountability, the push to keep showing up. Thank you.

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Emily L.

December 2025

Sleigh The Season

My second challenge with Erin and loving every bit of it.

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Jennah T.

November 2025

BUNS & GUNS

I love this app and the workout program so far. It’s easy to follow the workouts, watch a quick demo on the moves, and track your weight and reps, all in the same app. I feel more productive in the gym not that I have a plan instead of just doing whatever I felt like at the moment. I’m one week in and I’m so sore all over in places I haven’t felt sore before.

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TM

Tammy M.

October 2025

SHAPE SHIFT

I did this to hold myself accountable, what I didn’t know is I would have the worst 2 weeks of my life. Some very personal things have put me into a dark place. But I’ve been able to focus on this challenge and stay engaged with some of the most amazing people! Thank you Erin ❤️❤️❤️❤️

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Hope D.

October 2025

SHAPE SHIFT

Only in week 2 but I love this program and get done challenges with Erin before and she’s always awesome!

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Addison E.

October 2025

SHAPE SHIFT

I love this app. The workouts are so different and diverse which I needed so much after being a college athlete!

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Eliza H.

October 2025

SHAPE SHIFT

I’m so in love with this training program so far. For the last three years I haven’t been taking care of myself like I should. I feel like this challenge has given me the motivation and excitement that I’ve needed. I’m so excited to see my transformation pictures in five weeks.😃

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Michelle W.

October 2025

SHAPE SHIFT

This new mindset pushing myself when no one is around 🙌🏻 pushing my limits, feeling sore and strong. I can’t wait to see how I feel at the end!

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Abby V.

August 2025

LOCKED IN: 8 Week Challenge

I have being loving all of Erin’s programs. The option to pick gym or at home workouts has been really helpful because some days I only have time to workout at home. They are the perfect length/challenge. Highly recommend!

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Nikki p.

July 2025

SUNS OUT BUNS OUT

This program is so easy to follow, with videos showing each exercise!

Transformations

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
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2nd Place in Be Legendary Spring Challenge

Jolee
program transformation testimonial image from Kelsey
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3rd Place in Be Legendary 2023 Challenge

Kelsey
program transformation testimonial image from Amanda
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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

238.7K 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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