Comparison

Build and Burn vs Define.

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

Head to head
About

Build and Burn

Achieve your fitness goals with daily 30-minute workouts requiring minimal equipment. This app offers strength, HIIT, and mobility routines suitable for all levels, including beginners, athletes, and postpartum mothers. Enjoy personalized weekly schedules to build a sustainable fitness journey.

Highlights
  • 30-minute daily workouts
  • Minimal equipment required
  • Strength training
  • HIIT routines
  • Mobility exercises
  • Personalized weekly schedules
Read full description

Build and Burn is your digital platform for creating a sustainable fitness routine in just 30 minutes per day. Our workouts are designed with minimal equipment in mind so they can be done anywhere, anytime. Whether you’re a seasoned athlete, a beginner, or a postpartum or pregnant mom, Build and Burn has you covered with a weekly curated schedule just for you. We can’t wait to sweat with you and watch you become your best self. To access all features and content you can subscribe to Build & Burn on a monthly or yearly basis with an auto-renewing subscription right inside the app.* Pricing can vary by region and will be confirmed before purchase in the app. In app subscriptions will automatically renew at the end of their cycle. All payments will be paid through your iTunes Account and may be managed under Account Settings after the initial payment. Subscription payments will automatically renew unless deactivated at least 24-hours before the end of the current cycle. Your account will be charged for renewal at least 24-hours prior to the end of the current cycle.Any unused portion of your free trial will be forfeited upon payment.Cancellations are incurred by disabling auto-renewal. 
Terms of Service: https://watch.buildandburn.co/tos Privacy Policy: https://watch.buildandburn.co/privacy

About

Define.

This app offers a variety of workouts designed by fitness experts to create a balanced approach to exercise and overall health. It provides live and on-demand classes, with new content added weekly, suitable for all fitness levels.

Highlights
  • Variety of workouts
  • Live and on-demand classes
  • New classes added weekly
  • Workouts 30 minutes or less
  • Suitable for all fitness levels
  • Balanced approach to health
Features
Read full description

Define was created by fitness experts Jo and Jacqs of Sweat and Tell to offer workouts you can do anytime, anywhere. This app is designed to create a balanced approach to exercise and your overall health and wellness routine. Define is an all access app that offers five new follow along workouts each week, a weekly live community workout & a robust on demand library. Each workout is uniquely designed to sculpt and tone while developing a stronger mind-body connection. Whatever your fitness level, you will feel supported, connected and empowered as we guide you through each movement.

Screenshots

Build and Burn4 screens
Define.4 screens

Verdict

The call

The clearest difference is rating: Build and Burn at 4.9 against Define.'s 4.3. Build and Burn also leads on review sentiment (96% vs 63%) and ratings volume (285 vs 12). Define.'s advantage is in-app purchases (none vs 7) and update cadence (every 5 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. Build and Burn sells 7 in-app purchases, starting at $29.99 per month. Define. asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Build and Burn holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Build and Burn has 285 ratings behind it against 12, so its average is the more settled of the two. Written reviews point the same way: 96% of Build and Burn's written reviews are positive against 63% of Define.'s.

UpkeepUpdate frequency

Build and Burn ships an update every 3 months, Define. every 5 weeks. The most recent releases landed on September 24, 2026 and September 12, 2026 respectively.

Scorecard6 real differences · 4 level
Build and Burn versus Define.: the parameters behind the verdict, then further details
ParameterBuild and BurnDefine.
PriceFreeFree
Rating4.9 (285 ratings) — better4.3 (12 ratings)
Positive reviews96.3% of reviews — better62.5% of reviews
Number of ratings285 — better12
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.4 — better
Further details — not scored
Size103 MB121 MB
Age rating17+12+
DeveloperROSEY SOLUTIONS LLCSutra Fitness, Inc.

Customer experience

Build and Burn

All ratings285 ratings
Positive97.5%
Neutral1.4%
Negative1.1%
Written reviews215 reviews
Positive96.3%
Neutral2.3%
Negative1.4%

Define.

All ratings12 ratings
Positive75.0%
Neutral8.3%
Negative16.7%
Written reviews8 reviews
Positive62.5%
Neutral12.5%
Negative25.0%

Bugs and requests

Build and Burn

Reported bugs

2 issues
  • Audio/music issues during workouts
  • Occasional app crashes or freezes

Requested features

2 requests
  • Add option to mark completed workouts
  • Improve app navigation and filtering

Define.

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Build and Burn

Subscriptions2
  • Build & Burn Monthly7 Days trial$29.991 Month
  • Build & Burn Yearly7 Days trial$299.991 Year
One-time5
  • Build and Burn - 13999$139.99
  • Build and Burn - 19999$199.99
  • Build and Burn - 21999$219.99
Show 2 more
  • Build and Burn - 24999$249.99
  • Build and Burn - 29999$299.99
None

Define.

No in-app purchases

Questions

Is Build and Burn free?
Build and Burn is free to download, with in-app purchases available.
Is Define. free?
Define. is free to download, with no in-app purchases.
Which has better reviews, Build and Burn or Define.?
Build and Burn is rated higher. Build and Burn averages 4.9 out of 5 from 285 ratings, while Define. averages 4.3 from 12 ratings.
Do Build and Burn or Define. have ads?
Neither Build and Burn nor Define. shows ads.
Which is updated more often, Build and Burn or Define.?
Build and Burn ships an update every 3 months, and Define. every 5 weeks. Most recently, Build and Burn was updated on September 24, 2026 and Define. on September 12, 2026.

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