Comparison

STRONG by Erika Hammond vs FlexWheeler Development System

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

STRONG by Erika Hammond

Access a library of boxing-inspired cardio, HIIT, strength, and sculpt workouts. Achieve a champion mindset and a knockout body with curated programs and community support. Try it free for 7 days.

Highlights
  • On-demand boxing-inspired workouts
  • Curated fitness programs and challenges
  • Workout schedules for accountability
  • Private community for support
  • Signature workouts like BOXAPALOOZA and TOTAL BODY KNOCKOUT
  • Offline workout downloads
Features
Read full description

Download the STRONG app now for access to an on-demand library full of fun and challenging boxing-inspired cardio, HIIT, strength, and sculpt workouts/programs. Each workout is designed to help you tap into your physical and mental strength aka achieve a CHAMPION mindset and a KNOCKOUT body. With a STRONG membership you’ll receive access to all of our curated programs. Join the community of strong AF men and women for a challenge, or take the classes on your own time on-demand. GET 7 DAYS FOR FREE! What’s included: Instant access to 200+ on-demand workouts ranging from 10-60 minutes Curated challenges to SEE & FEEL results Workout schedules to hold you accountable & provide structure Access to a private group to connect and get support from the STRONG community Erika, in your corner of the ring— providing endless encouragement and support STRONG Signature Workouts: BOXAPALOOZA- Kind of like lollapalooza but better. This workout is ALL shadowboxing. Think combo builds, movement, speed, power, defense, and reactions. Walk away feeling like a champ!  TOTAL BODY KNOCKOUT- A full body workout that combines the skills and drills of boxing with strength moves for the ULTIMATE sweat + shred. (Weighted and bodyweight both offered) PUNCH HARDER- A strength training workout featuring weighted dynamic and compound moments to make you stronger and complement your boxing moves IE increase the power on that knockout punch. JUMP IN THE RING- No punches, no weights... bodyweight conditioning designed to build stamina and endurance. HIIT and MetCon style to burn calories and get your heart rate raising the roof! GOING THE DISTANCE- Audio guided interval and HIIT style runs programmed for you to take it to the streets or the treadmill to get your cardio game on. BOX + SCULPT- A low impact, high intensity, muscle quivering, workout to build strong lean muscles AKA toning meets cardio ---A mix of cardio boxing and pilates inspired moves.  Workout anywhere, anytime with STRONG! Stream workouts via iPhone and iPad, anywhere in the world. No wifi? No problem. Ability to download workouts for offline viewing. What are you waiting for? Let’s get you throwing a Jab, a Cross and get HOOK(ED) on STRONG by Erika Hammond! DOWNLOAD NOW --- ▷ Already a Member? Sign-In to access your subscription. ▷ New? Try it for free! Subscribe in the app to get instant access. STRONG offers auto-renewing subscriptions. You'll receive unlimited access to content on all your devices. Payment is charged to your account at confirmation of purchase. Pricing varies by location and is confirmed prior to purchase. Subscription automatically renews each month unless canceled at least 24 hours before the end of the current billing period, or the trial period (when offered). Cancel anytime in Account Settings. For more information see our: -Terms of Service: https://thestrongcollective.uscreen.io/pages/t-c -Privacy Policy: https://thestrongcollective.uscreen.io/pages/t-c

About

FlexWheeler Development System

Features
Read full description

Download the Flex Wheeler Development System members app to take ownership of your health and fitness today. This app will serve as your pocket companion throughout your fitness journey where you can access all your plans and programs specifically designed to help you achieve your fitness goals.

Screenshots

STRONG by Erika Hammond4 screens
FlexWheeler Development System4 screens

Verdict

The call

The clearest difference is update cadence: STRONG by Erika Hammond at every 2 months against FlexWheeler Development System's every 50 months. FlexWheeler Development System's advantage is iOS requirement (13.4 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. STRONG by Erika Hammond sells 4 in-app purchases, starting at $19.99 per month and FlexWheeler Development System sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

STRONG by Erika Hammond ships an update every 2 months, FlexWheeler Development System every 50 months. Both last shipped on November 3, 2026.

Scorecard2 real differences · 8 level
STRONG by Erika Hammond versus FlexWheeler Development System: the parameters behind the verdict, then further details
ParameterSTRONG by Erika HammondFlexWheeler Development System
PriceFreeFree
Rating4.9 (66 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings66 — better—
Update frequencyEvery 2 months — betterEvery 50 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.013.4 — better
Further details — not scored
Size66 MB25 MB
Age rating4+4+
DeveloperThe Strong Collective, LLCThe GOAT 33, Inc.

Bugs and requests

STRONG by Erika Hammond

Requested features

2 requests
  • More new workouts released weekly
  • Increase the frequency of new workout content

FlexWheeler Development System

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

STRONG by Erika Hammond

Subscriptions4
  • The Strong Collective Monthly7 Days trial$19.991 Month
  • MONTHLY7 Days trial$19.991 Month
  • The Strong Collective Yearly7 Days trial$194.991 Year
Show 1 more
  • YEARLY7 Days trial$194.991 Year
1 purchases

FlexWheeler Development System

One-time1
  • Training and Nutrition Package$299.99

Questions

Is STRONG by Erika Hammond free?
STRONG by Erika Hammond is free to download, with in-app purchases available.
Is FlexWheeler Development System free?
FlexWheeler Development System is free to download, with in-app purchases available.
Do STRONG by Erika Hammond or FlexWheeler Development System have ads?
Neither STRONG by Erika Hammond nor FlexWheeler Development System shows ads.
Which is updated more often, STRONG by Erika Hammond or FlexWheeler Development System?
STRONG by Erika Hammond ships an update every 2 months, and FlexWheeler Development System every 50 months. Most recently, STRONG by Erika Hammond was updated on November 3, 2026 and FlexWheeler Development System on November 3, 2026.

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