Comparison

Burn Boot Camp vs Underground Athlete Coaching

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

Head to head
About

Burn Boot Camp

This app offers a comprehensive fitness experience with live-streamed boot camps, on-demand workouts, and nutritional guidance. It focuses on building strength, confidence, and community for women and their families, including features for booking classes and tracking progress.

Highlights
  • Live-streamed boot camps
  • On-demand workout library
  • Nutritional support
  • Book classes and meetings
  • Track fitness progress
  • Purchase activewear and supplements
Features
Read full description

At Burn Boot Camp, we believe it's not what you lose; it's what you gain. Strength. Confidence. Community. We empower women and their families through challenging workouts, nutritional support, 1:1 Focus Meetings, and complimentary Childwatch, all backed by the best fitness community in the world. Your Training. Your Plan. Your Progress. Introducing My Plan, your personalized fitness hub inside the app. Track your personal records across exercises, follow periodized training cycles designed by our coaches, and get personalized macro and nutrition targets based on your goals. Whether you're focused on Max Loss, Body Recomposition, or Max Muscle, My Plan builds a plan around you. Connect Your Wearable. See Everything. Sync your wearable to automatically track steps, calories burned, heart rate, hydration, and daily workout activity all in one place. Live, On Demand, and More The app is home to Burn Boot Camp Live, our signature 45-minute boot camp live-streamed Monday–Friday at 9 AM EST. Work out at home or on the go with Burn On Demand. Choose from hundreds of videos, including 20-minute Quick Camps, Burst Training, Super Finishers, Form University, Kids Camps, and recovery content like stretching, foam rolling, and motion. Here's what else you'll experience: View the weekly protocol, book Camps, Body Scans, and Focus Meetings, and book multiple children into complimentary Childwatch · Track Camp streaks and lifetime Camps in our Keep Moving Club · Start a trial membership, purchase single gym or universal memberships, or no-commitment Fit Cards · Comment on and engage with workout videos alongside the Burn community · Refer friends and family to your gym with our built-in referral feature · Purchase Burn Boot Camp activewear and nutrition including Afterburn Protein, Ignite pre-workout, Replenish post-workout, and Creatine

About

Underground Athlete Coaching

Track your workouts, meals, and progress towards fitness goals with personalized guidance from your coach. Schedule sessions, manage nutrition, and monitor body measurements. Stay motivated with real-time messaging and reminders.

Highlights
  • Workout and meal tracking
  • Progress monitoring
  • Nutrition management
  • Real-time coach messaging
  • Body measurement tracking
  • Push notification reminders
  • Wearable device integration
Features
Read full description

With the Underground Athlete Coaching App, you can start tracking your workouts and meals, measuring results, and achieving your fitness goals, all with the help of your personal trainer. - Access training plans and track workouts - Schedule workouts and stay committed by beating your personal bests - Track progress towards your goals - Manage your nutrition intake as prescribed by your coach - Set health and fitness goals - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect to wearable devices like Apple Watch (synced to Health app), Fitbit and Withings to sync body stats instantly Download the app today!

Screenshots

Burn Boot Camp4 screens
Underground Athlete Coaching4 screens

Verdict

The call

The clearest difference is monetization model: Underground Athlete Coaching at free against Burn Boot Camp's free with in-app purchases. Burn Boot Camp's advantage is ratings volume (17K vs 24) and update cadence (every 3 weeks vs every 2 months). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for Burn Boot Camp against 4.9 for Underground Athlete Coaching. That said, the two scores are not equally well evidenced: Burn Boot Camp has 17K ratings behind it against 24, so its average is the more settled of the two.

UpkeepUpdate frequency

Burn Boot Camp ships an update every 3 weeks, Underground Athlete Coaching every 2 months. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

Scorecard4 real differences · 6 level
Burn Boot Camp versus Underground Athlete Coaching: the parameters behind the verdict, then further details
ParameterBurn Boot CampUnderground Athlete Coaching
PriceFreeFree
Rating4.9 (17K ratings)4.9 (24 ratings) — better
Positive reviews68.6% of reviews—
Number of ratings17K — better24
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.0 — better15.5
Further details — not scored
Size107 MB171 MB
Age rating4+4+
DeveloperKLINE FRANCHISING, INC.Underground Athlete

Customer experience

Burn Boot Camp

All ratings17,085 ratings
Positive98.0%
Neutral1.2%
Negative0.8%
Written reviews487 reviews
Positive68.6%
Neutral8.6%
Negative22.8%

Underground Athlete Coaching

All ratings24 ratings
Positive95.8%
Neutral4.2%
Negative0.0%

Bugs and requests

Burn Boot Camp

Reported bugs

4 issues
  • App crashes and freezes
  • Membership not recognized
  • Inconsistent camp booking functionality
  • Syncing issues with Mindbody account

Requested features

5 requests
  • Yearly camp attendance tracking
  • Ability to book multiple childcare spots
  • Automated waitlist notifications
  • Customizable profile pictures
  • Option to review individual camps

Underground Athlete Coaching

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Burn Boot Camp

No in-app purchases

None

Underground Athlete Coaching

No in-app purchases

Questions

Is Burn Boot Camp free?
Burn Boot Camp is free to download, with no in-app purchases.
Is Underground Athlete Coaching free?
Underground Athlete Coaching is free to download, with no in-app purchases.
Which has better reviews, Burn Boot Camp or Underground Athlete Coaching?
Underground Athlete Coaching is rated higher. Burn Boot Camp averages 4.9 out of 5 from 17K ratings, while Underground Athlete Coaching averages 4.9 from 24 ratings.
Do Burn Boot Camp or Underground Athlete Coaching have ads?
Neither Burn Boot Camp nor Underground Athlete Coaching shows ads.
Which is updated more often, Burn Boot Camp or Underground Athlete Coaching?
Burn Boot Camp ships an update every 3 weeks, and Underground Athlete Coaching every 2 months. Most recently, Burn Boot Camp was updated on November 2, 2026 and Underground Athlete Coaching on October 25, 2026.

Other comparisons