Comparison

Van Os Coaching vs BTB Workout Log

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

Head to head
About

Van Os Coaching

Features
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PLEASE NOTE: YOU NEED A Van Os Coaching ACCOUNT TO ACCESS THIS APP. IF YOU'RE A MEMBER GET IT FOR FREE AT YOUR GYM! Begin your journey to a healthier lifestyle and let Van Os Coaching help you along the way. Introducing Van Os Coaching, most comprehensive fitness platform with: Check class schedules and opening hours Track your daily fitness activities Track your weight and other body metrics Over 2000+ exercises and activities Clear 3D exercise demonstrations Preset workouts and the option to create your own Over 150 badges to earn Select workouts online and synchronize them with your app to workout at home or in the gym while keeping track of your progress. From strength to weight lifting, this app acts as your own personal trainer guiding and giving you the motivation you need. You can sync this app with Apple Health App. If you enable this connection, any workout in the Health app with automatically be added to your Activity Calendar.

About

BTB Workout Log

Features
Read full description

In modern training science, the two metrics most strongly associated with hypertrophy are progressive overload of volume per exercise (e.g. Plotkin 2022) and weekly hard sets per muscle (e.g. Schoenfeld 2017, Pelland 2025). BTB Workout Log is a workout tracker built to follow exactly these two โ€” so you can tell whether the training you are doing is worth continuing. โ–  "HOW MANY SETS DID MY CHEST GET THIS WEEK?" Just log weight, reps, and sets. BTB maps each exercise to the muscles it works, so weekly hard sets per muscle โ€” chest, back, shoulders, arms, legs โ€” pile up on their own. That question doesn't get answered by your memory. It gets answered by the numbers. โ–  "IS MY BENCH ACTUALLY MOVING?" Volume trends per exercise show progressive overload as numbers, not as a feeling. No score, no grade, no black box: BTB shows the raw figures behind every conclusion, so you can check the reasoning yourself. โ–  THE DATA PILES UP WITHOUT YOU REALLY LOGGING Copy last session into today with one tap. A custom keypad and last-time suggestions finish your entry in seconds. Tick sets off on Apple Watch or the iPhone Lock Screen โ€” no unlocking, no app to open, so you never touch your phone mid-exercise. No social feed, no tutorial videos, no templates: we left them out to keep logging as short as possible. โ–  WHAT BTB ANSWERS โ€ข How many sets has this muscle had this week? โ€” weekly hard sets per muscle, tallied automatically โ€ข Is this exercise progressing? โ€” volume trend charts โ€ข Can I log without breaking my rhythm? โ€” copy last session + custom keypad โ€ข Can my phone stay in my pocket? โ€” tick sets on Apple Watch and the Lock Screen โ€ข Is my data mine? โ€” CSV export, even on the free plan โ€ข Will it get in the way? โ€” fully offline, zero ads Catch undertrained muscles before they stall your progress. Balance your week by the numbers, not by feel. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://btbworkoutlog.com/privacy-policy.html

Screenshots

Van Os Coaching4 screens
BTB Workout Log4 screens

Verdict

The call

The clearest difference is in-app purchases: Van Os Coaching at none against BTB Workout Log's 2. Van Os Coaching also leads on iOS requirement (13.0 vs 15.0). BTB Workout Log's advantage is update cadence (every 4 days vs every 13 months). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. BTB Workout Log sells 2 in-app purchases, starting at $1.99 per month. Van Os Coaching asks for nothing beyond the download.

UpkeepUpdate frequency

Van Os Coaching ships an update every 13 months, BTB Workout Log every 4 days. Both last shipped on September 10, 2026.

Scorecard3 real differences ยท 3 level
Van Os Coaching versus BTB Workout Log: the parameters behind the verdict, then further details
ParameterVan Os CoachingBTB Workout Log
PriceFreeFree
Update frequencyEvery 13 monthsEvery 4 days โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPodiPhone, iPod, Apple Watch โ€” better
Requires iOS13.0 โ€” better15.0
Further details โ€” not scored
Size176 MB43 MB
Age rating12+4+
DeveloperVan Os CoachingYoshitake Tani

In-app purchases

None

Van Os Coaching

No in-app purchases

2 purchases

BTB Workout Log

Subscriptions2
  • Premium$1.991 Month
  • Premium Yearly1 Month trial$19.991 Year

Questions

Is Van Os Coaching free?
Van Os Coaching is free to download, with no in-app purchases.
Is BTB Workout Log free?
BTB Workout Log is free to download, with in-app purchases available.
Do Van Os Coaching or BTB Workout Log have ads?
Neither Van Os Coaching nor BTB Workout Log shows ads.
Which is updated more often, Van Os Coaching or BTB Workout Log?
Van Os Coaching ships an update every 13 months, and BTB Workout Log every 4 days. Most recently, Van Os Coaching was updated on September 10, 2026 and BTB Workout Log on September 10, 2026.

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