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Comparison

Workout Performance Diary vs BTB Workout Log

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

Head to head
Workout Performance Diary
Workout Performance Diary

Goals, Notes, Reps & Progress

Free
πŸ’ͺ Health & Fitness
No ratingsView app β†’
BTB Workout Log: Gym Tracker
BTB Workout Log

Weightlifting log & rest timer

Free
πŸ’ͺ Health & Fitness
No ratingsView app β†’
About

Workout Performance Diary

Log your gym workouts with detailed progress tracking. Build custom plans, monitor your stats like volume and one-rep max, and stay consistent with calendar tracking. Integrates with Apple Health for a comprehensive fitness overview.

Highlights
  • Custom workout plan creation
  • Calendar and streak tracking
  • Built-in exercise library
  • Detailed charts and stats
  • Workout history and trends
  • Rest timer
  • Apple Health integration
Features
Read full description

A convenient and user-friendly workout log with progress tracking. Strength training, fitness, calisthenics, or home workouts of any kind. Build better habits, stay consistent, and see real progress over time. - Create custom workout plans - Calendar and streak tracking - Built-in exercise library - Add your own exercises with custom categories - Charts & stats: total training volume, one-rep max, sets, reps - Volume, reps, and workout trends - Exercise-specific charts & stats: total volume, max weight, one-rep max, max reps, duration - Workout history - Rest timer - Apple Health integration - Body weight tracking - Data export/import - Dark and light themes The app is evolving β€” I’m looking forward to your suggestions and feedback. Thank you! Terms of Use (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy https://rubymedia.tech/workoutlogging/policy

About

BTB Workout Log

Features
Read full description

One more rep than last time. BTB is a training notebook for stacking small gains. Open it, copy your last session, and change today's numbers. Logging a set takes seconds. β–  ONLY WHAT HELPS YOU KEEP GOING β€’ Copy your last session into today with one tap β€’ A dedicated keypad and last-time suggestions finish each entry in seconds β€’ Tick off sets from Apple Watch or the iPhone Lock Screen, with the time since your last set shown right there β€’ Offline-first design: stays fast even in gyms with no signal No social feed, no ads. β–  THE LOG YOU KEEP ACTUALLY PAYS OFF Look back any time at weight and volume trends per exercise and your full history. Export every record as CSV. β–  FREE AND BTB PREMIUM Free β€” logging, volume trends and history per exercise, CSV export, offline use, set check-off from Apple Watch and the Lock Screen BTB Premium β€” the "Analysis" screen, with weekly sets per muscle and week-by-week trends in one place Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://btbworkoutlog.com/privacy-policy.html

Screenshots

Workout Performance Diary4 screens
BTB Workout Log4 screens

Verdict

The call

The clearest difference is update cadence: BTB Workout Log at every 4 days against Workout Performance Diary's every 9 days. BTB Workout Log also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

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

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

Both are free to download. Workout Performance Diary sells 2 in-app purchases, starting at $1.99 per month and BTB Workout Log sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Workout Performance Diary ships an update every 9 days, BTB Workout Log every 4 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard3 real differences Β· 5 level
Workout Performance Diary versus BTB Workout Log: the parameters behind the verdict, then further details
ParameterWorkout Performance DiaryBTB Workout Log
PriceFreeFree
Positive reviews100.0% of reviewsβ€”
Update frequencyEvery 9 daysEvery 4 days β€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumβ€”
DevicesiPhoneiPhone, iPod, Apple Watch β€” better
Requires iOS18.015.0 β€” better
Further details β€” not scored
Size49 MB48 MB
Age rating4+4+
DeveloperDenis RomantsovYoshitake Tani

In-app purchases

2 purchases

Workout Performance Diary

Subscriptions2
  • Monthly$1.991 Month
  • Yearly$9.991 Year
2 purchases

BTB Workout Log

Subscriptions2
  • Premium14 Days trial$1.991 Month
  • Premium Yearly1 Month trial$19.991 Year

Questions

Is Workout Performance Diary free?
Workout Performance Diary is free to download, with in-app purchases available.
Is BTB Workout Log free?
BTB Workout Log is free to download, with in-app purchases available.
Do Workout Performance Diary or BTB Workout Log have ads?
Neither Workout Performance Diary nor BTB Workout Log shows ads.
Which is updated more often, Workout Performance Diary or BTB Workout Log?
Workout Performance Diary ships an update every 9 days, and BTB Workout Log every 4 days. Most recently, Workout Performance Diary was updated on October 30, 2026 and BTB Workout Log on October 31, 2026.

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