Comparison

Black Iron Training vs Body.build

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

Head to head
About

Black Iron Training

Features
Read full description

We train busy people to do hard things. Our programs help lifters, runners, and skiers get stronger, fitter, and faster. Whether you're chasing faster splits, longer distances, heavier lifts, more muscle, or bigger lines, we've got the programming to back you up. We're here to build strength and endurance that shows up when it counts most with expert coaching and a whole crew in your pocket. Because fitness should power your life, not limit it. Features: • Training Programs: Access a variety of structured lifting and running programs tailored for all fitness levels, from beginners to experienced athletes. • Pregnancy & Postpartum Workouts: Created by our in-house pelvic floor physical therapist. • Workout Collections: Metcon, Cardio, Plyo, Complex, and Bodyweight workout collections to enhance and further customize your training. • Resource Collections: E-books, podcast episodes, calculators, quick guides, blog posts, training playlists, and more. • Optional Coach Messaging: Upgrade your training with coach access to connect with a BIT coach for personalized support. Message them anytime with questions, voice memos, or for extra guidance and strategy. • Health Metric Syncing: Sync with Apple Health, Oura, Garmin, or Fitbit to automatically update metrics like steps, sleep, resting heart rate, and HRV. • Optional Progress Tracking: Track weight, measurements, and progress photos over time. • Community Forums: Join a thriving community of like-minded individuals for accountability, encouragement, and inspiration. Black Iron is here to help you cut through the noise and provide real, no-BS coaching to help you feel, look, and perform your best.

About

Body.build

Features
Read full description

Body.build is an advanced weight lifting app for advanced lifters. - explore exercise tweaks and variations with links to external expert content and studies - implement those tweaks and variations and track detailed performance metrics at the gym - coming soon: analyze your performance with statistics and find the tweaks that work best for your gains - other features include: anatomy information, weight logging with 7-day averaging and weekly trends

Screenshots

Black Iron Training4 screens
Body.build4 screens

Verdict

The call

Black Iron Training and Body.build are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Black Iron Training ships an update every 3 weeks, Body.build every 6 weeks. The most recent releases landed on October 20, 2026 and October 28, 2026 respectively.

ScorecardNo meaningful differences
Black Iron Training versus Body.build: the parameters behind the verdict, then further details
ParameterBlack Iron TrainingBody.build
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size427 MB31 MB
Age rating4+4+
DeveloperBlack Iron Gym, LLCDieter Plaetinck

In-app purchases

None

Black Iron Training

No in-app purchases

None

Body.build

No in-app purchases

Questions

Is Black Iron Training free?
Black Iron Training is free to download, with no in-app purchases.
Is Body.build free?
Body.build is free to download, with no in-app purchases.
Do Black Iron Training or Body.build have ads?
Neither Black Iron Training nor Body.build shows ads.
Which is updated more often, Black Iron Training or Body.build?
Black Iron Training ships an update every 3 weeks, and Body.build every 6 weeks. Most recently, Black Iron Training was updated on October 20, 2026 and Body.build on October 28, 2026.

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