Comparison

btwb vs B3 Gym

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

Head to head
About

btwb

Log your workouts, discover new ones, and connect with your fitness community. Track progress, analyze performance, and manage nutrition with a comprehensive fitness tracking tool.

Highlights
  • Daily workout programming
  • Discover millions of WODs
  • Track workout results
  • Macro and nutrition tracking
  • Community and social features
  • Performance analysis and badges
  • Gym virtual programming
Features
Read full description

btwb, the world's premier workout tracker, brings fitness communities together, in person & remotely. We are the world's largest workout Log with 100+ million results and counting. WORKOUTS - Get daily programming at your fingertips with btwb's Varied Not Random workouts. 4 versions available daily: Performance, Fitness, Dumbbell Only, and No Equipment. - Post results for every workout and/or create your own. - Discover the perfect workout among 12+ Million Unique WODs. - Perfectly capture and share your workout experience with attached images and location tagging. - See how you stack up against the world with World-Wide Leaderboards. GYMS - Keep your community connected by taking your gym virtual. Deliver custom programming to groups and individuals, include personalized movement demos and WOD briefs, view member activity and results via gym feeds and leaderboards, and encourage members with emojis & comments through private Squads. MACROS - Track your Macros. Get the best features of other macro tracking apps combined with our best-in-class workout tracking. With over 700k grocery items, 160k restaurant items, and 13k common foods, find exactly the food you’re looking for by searching our library or by scanning the barcode of your favorite packaged item! You can even create your own custom entries! Set your own macronutrient targets, or have coaches set them for you. - Set your own macronutrient targets, or have coaches set them for you. SOCIAL - Create private Squads and build Follow lists to keep up with your friends' results. - Use direct messaging to converse about fitness with individuals and groups. ANALYSIS - Earn badges for various workouts, gymnastics maxes, 1RM lifts, and running & rowing intervals. - Discover potential major and minor strength, mobility, and technique issues in specific categories with Imbalances. - How fit are you? (1-100) Work to unlock your Fitness Level. Track body fat, benchmarks and more!

About

B3 Gym

This app allows B3 Gym members to manage their gym experience. Reserve spots in classes, sign up for gym events, and update personal account details like payment information and profile pictures.

Highlights
  • Class reservation
  • Gym event sign-ups
  • Account management
  • Update profile picture
  • Manage payment information
Features
Read full description

For members of B3 Gym to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.

Screenshots

btwb4 screens
B3 Gym4 screens

Verdict

The call

The clearest difference is ads: btwb at none against B3 Gym's shown. btwb also leads on ratings volume (1.5K vs 1) and update cadence (weekly vs monthly). B3 Gym's advantage is rating (5.0 vs 4.6) and monetization model (ad-supported vs free with in-app purchases). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

B3 Gym holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: btwb has 1.5K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

btwb ships an update weekly, B3 Gym monthly. The most recent releases landed on October 8, 2026 and September 15, 2026 respectively.

Scorecard5 real differences · 5 level
btwb versus B3 Gym: the parameters behind the verdict, then further details
ParameterbtwbB3 Gym
PriceFreeFree
Rating4.6 (1.5K ratings)5.0 (1 ratings) — better
Positive reviews53.2% of reviews—
Number of ratings1.5K — better1
Update frequencyWeekly — betterMonthly
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod
Requires iOS15.615 — better
Further details — not scored
Size265 MB94 MB
Age rating4+4+
DeveloperBTWB, LLCBody By Boris, LLC

Customer experience

btwb

All ratings1,529 ratings
Positive89.5%
Neutral2.7%
Negative7.8%
Written reviews203 reviews
Positive53.2%
Neutral9.4%
Negative37.4%

B3 Gym

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

btwb

Reported bugs

5 issues
  • Subscription cancellation and billing problems
  • Frequent crashes and white screens
  • Inability to log certain workout types
  • Barcode scanner and movement tracking issues
  • Problems with data syncing and history display

Requested features

5 requests
  • Add dark mode or black background option
  • Integrate with Apple Health and other fitness apps
  • Improve custom workout creation and logging
  • Provide better social/community features
  • Fix issues with loading and saving workout data

B3 Gym

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

btwb

No in-app purchases

None

B3 Gym

No in-app purchases

Questions

Is btwb free?
btwb is free to download, with no in-app purchases.
Is B3 Gym free?
B3 Gym is free to download, with no in-app purchases.
Which has better reviews, btwb or B3 Gym?
B3 Gym is rated higher. btwb averages 4.6 out of 5 from 1.5K ratings, while B3 Gym averages 5.0 from 1 ratings.
Do btwb or B3 Gym have ads?
B3 Gym shows ads; btwb does not.
Which is updated more often, btwb or B3 Gym?
btwb ships an update weekly, and B3 Gym monthly. Most recently, btwb was updated on October 8, 2026 and B3 Gym on September 15, 2026.

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