Comparison

Boot Camp Challenge vs ZenActivity

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

Head to head
About

Boot Camp Challenge

This app offers a progressive 18-day fitness program guided by a veteran U.S. Army trainer. It features over 200 exercises with video demonstrations, catering to all fitness levels. Workouts combine cardio, stretching, and muscular endurance for efficient results.

Highlights
  • 18-day progressive program
  • Expert U.S. Army trainer guidance
  • 200+ exercises with video
  • Beginner to advanced levels
  • Beat-sync music technology
  • Interactive workout customization
  • Health app syncing
Features
Read full description

Featured by Apple as a Fitness Essential. Whether you're a first time exerciser or an extreme fitness enthusiast looking for a challenge, BCC has the right program for you. Veteran U.S. Army Trainer and Certified Personal Trainer Lori Patterson guides you through a progressive 18-day program that will get you results quickly, safely, and effectively. Each day combines cardio, stretching and muscular endurance training into one challenging workout. Every one of the 200+ exercises include video DURING YOUR WORKOUT, so that you can always double-check your form. FEATURES • Get the authentic boot camp experience from Lori Patterson, a veteran U.S. Army Trainer and Certified Personal Trainer. • 3 programs designed for Beginner, Intermediate, and Advanced exercisers. • Includes over 200 unique exercises. Each one includes a video to help you perfect your form. • Works anywhere! Over 125 body weight exercises to push you to your fitness goal. You can also add in equipment if you want a little extra challenge. • lolo's beat-sync technology perfectly matches the tempo of your music to your workout. • Completely interactive. Swap out exercises to personalize your workouts. Increase or decreases the intensity at anytime and your trainer Lori Patterson — and your music — will respond! • Find a Boot Camp Challenge Boot Camp near you. If you enjoy the Boot Camp Challenge program and want to get the full experience in person, you can find a certified Boot Camp Challenge trainer near you. • Sync your workouts to the Health app. • Compatible with most bluetooth heart rate monitors. EXPERT INSTRUCTION While other trainers throw around the term boot camp to describe their programs, Lori Patterson actually trained soldiers while serving in the U.S. Army. Lori is also an ACE, ASCM, AFAA, and WellCoach certified personal trainer. Boot Camp Challenge programs combine authentic military conditioning with the principles of safety and science from the fitness industry, ensuring you a safe and effective workout. Lori will be with you every step of the way, giving you the tips you need to get the most out of your workout and the motivation to keep going no matter how tough it gets. A COMPLETE WORKOUT The Boot Camp Challenge Program combines cardio, stretching, and muscular endurance training in each workout to help you lose fat, improve strength and endurance, and enhance your functional fitness. Basically, you will be building a better you, and with this circuit-style workout, you will do it faster than you could imagine. BEAT-SYNC Boot Camp Challenge dynamically changes the beat of YOUR music to perfectly match your movements. Research shows that music distracts the brain during exercise and faster music causes people to accept and even prefer a greater degree of effort. This means you will work harder without trying (or without even feeling the difference), you will get better results from the increased effort, and most importantly, the time will fly by. DESIGNED AROUND YOU Lori Patterson has worked with thousands of people and she knows how to safely and effectively guide anyone towards their goal. Whether you're a first time exerciser or an extreme fitness enthusiast looking for a challenge, BCC has the right program for you. Plus Boot Camp Challenge gives you control of your program. Change the exercises to match your equipment or simply pick your favorites. You can even turn the intensity down a bit when you're struggling or crank it up when you're ready for more, and Boot Camp Challenge adjusts your workout — and your music — on the fly. SOCIAL SHARING Your personal network is key to reaching your goals. Share your successes with them through Facebook. Works with Health Bluetooth HR Monitor compatible

About

ZenActivity

Create and save custom interval timers for workouts, yoga, and meditation. This app offers extensive customization for exercise and rest periods, allowing you to build up to five unique routines with unlimited steps. Enjoy background operation and music integration for a seamless practice.

Highlights
  • Save up to 5 workout routines
  • Unlimited customizable steps per routine
  • Second-level interval customization
  • Background operation with music support
  • ZEN-mode for distraction-free timing
  • Airplay support for Apple TV
Features
Read full description

ZenActivity is a powerful, beautifully designed workout timer built for people who want total control over their routines—without complexity. Whether you’re practicing yoga, training MMA, building strength, or meditating, ZenActivity adapts to your flow with precision timing, flexible structure, and a calm, focused experience. Design your workouts exactly the way you want, follow them effortlessly, and track your progress over time. Build Your Perfect Routine • Create unlimited workouts, each with a custom name and type • Add unlimited steps per workout with full control over sequence and structure • Categorize steps: Exercise, Stretch, Rest, Meditation, Weights, Cardio, Core, Kettlebells • Set exact durations down to the second (hours, minutes, seconds) • Reorder steps with intuitive drag-and-drop • Duplicate or delete steps instantly with simple gestures Effortless Workout Experience • Clean, distraction-free running screen with workout name and icon • Tap to play or pause your session • Pinch to exit quickly • Runs smoothly in the background while you listen to music • Optional sounds, vibration, and volume per step • Activate Zen Mode for a minimal, distraction-free timer • Subtle haptics reinforce state changes without breaking focus Smart Reminders • Set reminders for individual workouts • Flexible scheduling: daily, weekdays, or weekly with notifications with sound and banner support Track Your Progress • Automatic workout logging • Visual statistics with 7, 30, and 90-day views • Identify your most consistent and top workouts Home Screen Widget • “Favorite Workouts” widget in multiple sizes • Instantly launch workouts directly from your Home Screen Designed for Real Practice ZenActivity is trusted by yoga practitioners, meditation enthusiasts, athletes, and trainers who want a reliable, customizable timer that stays out of the way and supports their rhythm. It’s equally suited for: • Yoga and breathwork • HIIT and interval training • Boxing and MMA • Strength and conditioning • Meditation and progressive relaxation Thoughtful Design • Intuitive interface that’s easy to learn and fast to use • Clean visuals that feel both calming and energizing • Built-in help to guide you through every feature ZenActivity doesn’t just time your workouts—it supports your discipline, focus, and consistency. Let it guide your daily practice.

Screenshots

Boot Camp Challenge4 screens
ZenActivity4 screens

Verdict

The call

The clearest difference is rating: ZenActivity at 4.5 against Boot Camp Challenge's 3.9. ZenActivity also leads on ratings volume (58 vs 7). Boot Camp Challenge's advantage is update cadence (every 2 months vs every 13 months) and review sentiment (77% vs 65%). On price, ads, in-app purchases and monetization model 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

Boot Camp Challenge costs $3.99 and ZenActivity $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ZenActivity holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: ZenActivity has 58 ratings behind it against 7, so its average is the more settled of the two. Written reviews complicate that: 77% of Boot Camp Challenge's written reviews are positive against 65% of ZenActivity's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Boot Camp Challenge ships an update every 2 months, ZenActivity every 13 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Boot Camp Challenge versus ZenActivity: the parameters behind the verdict, then further details
ParameterBoot Camp ChallengeZenActivity
Price$3.99$3.99
Rating3.9 (7 ratings)4.5 (58 ratings) — better
Positive reviews76.5% of reviews — better65.4% of reviews
Number of ratings758 — better
Update frequencyEvery 2 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPod
Requires iOS7.1 — better14.0
Further details — not scored
Size116 MB13 MB
Age rating4+4+
DeveloperloloGary Saggu

Customer experience

Boot Camp Challenge

All ratings7 ratings
Positive71.4%
Neutral0.0%
Negative28.6%
Written reviews132 reviews
Positive76.5%
Neutral8.3%
Negative15.2%

ZenActivity

All ratings58 ratings
Positive86.2%
Neutral8.6%
Negative5.2%
Written reviews26 reviews
Positive65.4%
Neutral19.2%
Negative15.4%

Bugs and requests

Boot Camp Challenge

Reported bugs

12 issues
  • App crashes during workouts
  • Login page inaccessible after updates
  • Doesn't resume from where user left off
  • Music playlist resets on app restart
  • Trainer voice overlaps with music
Show 7 more
  • Exercise counter out of sync with video
  • MyFitnessPal sync not working
  • App freezes mid-workout
  • Incompatibility with iOS updates
  • Random music playback issues
  • Double talking/audio glitches
  • Visual elements blocking video

Requested features

13 requests
  • iPad and HD version support
  • Extended program beyond 18-30 days
  • More cardiovascular exercises
  • Additional equipment options (kettlebells, exercise balls)
  • Countdown timer for each move
Show 8 more
  • Better MyFitnessPal integration
  • Detailed form and technique instructions
  • Circuit-style workout format
  • More comprehensive exercise descriptions
  • Ability to ignore pause button
  • Centralized exercise editing menu
  • Twitter sharing option
  • Strength vs stamina workout selection

ZenActivity

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Boot Camp Challenge

No in-app purchases

None

ZenActivity

No in-app purchases

Questions

Is Boot Camp Challenge free?
Boot Camp Challenge costs $3.99, with no in-app purchases.
Is ZenActivity free?
ZenActivity costs $3.99, with no in-app purchases.
Which has better reviews, Boot Camp Challenge or ZenActivity?
ZenActivity is rated higher. Boot Camp Challenge averages 3.9 out of 5 from 7 ratings, while ZenActivity averages 4.5 from 58 ratings.
Do Boot Camp Challenge or ZenActivity have ads?
Neither Boot Camp Challenge nor ZenActivity shows ads.
Which is updated more often, Boot Camp Challenge or ZenActivity?
Boot Camp Challenge ships an update every 2 months, and ZenActivity every 13 months. Most recently, Boot Camp Challenge was updated on October 13, 2026 and ZenActivity on October 7, 2026.

Other comparisons