Comparison

CoreWeight vs FitCat

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

Head to head
About

CoreWeight

Features
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CoreWeight — Everything You Need to Track Your Training. CoreWeight is a complete workout log for iPhone, iPad, Mac, and Apple Watch. Track strength training, cardio, body weight, body measurements, progress photos, personal records, and more — all in one place. Log your workouts quickly, review your progress with detailed charts, and stay motivated with goals and personal records. CoreWeight also includes a built-in HIIT & Tabata timer, photo comparisons, CSV import, and seamless iCloud sync across your Apple devices. KEY FEATURES • Quickly log exercises, sets, reps, and weight with minimal taps • Create workout menus and routines, or easily repeat previous workouts • Track training volume, estimated 1RM, body weight, body fat percentage, body measurements, heart rate zones, and more • Visualize your progress with detailed charts • Set goals and automatically track personal records • Compare Before & After photos side by side or with an overlay • Export progress photos as transition videos • Built-in HIIT & Tabata interval timer with customizable preparation, work, rest, and round settings • Sync your data across iPhone, iPad, Mac, and Apple Watch with iCloud • Import your existing workout history from CSV files • Create custom tracking fields and units • Share workouts and personal records with a single tap • Generate AI-ready prompts based on your recent training data FREE VERSION & LIFETIME LICENSE All CoreWeight features are available for free. The free iPhone and iPad versions display a banner ad on the Home screen. A one-time Lifetime License removes ads and lets you use CoreWeight without restrictions. The Mac version is ad-free. PRIVACY Your workout history, body measurements, and photos are stored on your device and in your own iCloud account. No CoreWeight account or login is required. Google AdMob is used only to display ads in the free iPhone and iPad versions. By using this app, you agree to Apple’s Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.vision-structure.com/coreweight/privacy/

About

FitCat

Features
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Keeping up with your workout log? FitCat is a strength training log app that brings together workout tracking, body composition management, and condition tracking in one place. It is designed not to record your training, but to make your data easy to review later and useful for planning your next session. FitCat is built for people who already track workouts, want to consistently manage weight, reps, sets, and RPE, and want to follow physical changes through data. Workout Tracking Record exercises, weight, reps, sets, RPE, and notes in detail. Enter each workout while checking your previous records. The app also supports assisted sets and rest logging for each set. Training time and cardio can be managed together. You can reorder input cards, browse past logs, and search with search history. Custom exercises, muscle groups, workout types, and groups can be freely created and edited. FitCat supports one-rep max calculation, RM conversion tables, total volume checks, and weight progression tracking. Body Composition and Daily Condition Track body weight, body fat percentage, BMI, and other body composition data. You can also manage sleep, meals, mental condition, physical condition, and muscle soreness in one place. Sleep start time, sleep end time, and daily notes can also be recorded. OCR and AI OCR support body composition input to reduce manual entry. FitCat shows a gym readiness score based on your daily condition. Review and Analysis FitCat helps you do more than save records. Training data, body composition data, and lifestyle records can all be visualized together. On the history screen, you can switch between graphs and lists, change time periods, and check trends. The home screen supports date selection and a weekly calendar. Sync and Data Management FitCat supports Apple Health and Health Connect. You can import and export body composition and workout data. CSV import and export are also available for workout history, body composition records, lifestyle data, and exercise data. You can quickly check the last sync time and permission status. Sharing and Community Copy workout logs as text or create shareable images. Shared images can be customized by toggling dark mode, notes, RPE, type names, muscle group names, assistance flags, and rest display. Image editing, blur tools, clear tools, and camera capture are also supported. FitCat includes posts, likes, comments, and follows. Consistency Support Workout and lifestyle tracking only matter if you can keep going. FitCat supports your routine with lifestyle reminders, body weight trend notifications, body composition change alerts, lifestyle change alerts, and exercise change alerts. You can also manage notification lists, read status, mark all as read, and delete notifications. What You Can Do with FitCat FitCat combines strength training logs, workout records, training history, body composition tracking, lifestyle records, fitness management, exercise logs, and condition tracking in one app. It is a good fit for people who want to keep recording weight, reps, sets, and RPE, review their training history while adjusting future sessions, check RM and total volume, track changes in body weight and body fat, and review sleep, meals, mental state, and physical condition together. It supports goals including strength gains, body recomposition, weight management, and general health tracking. However, FitCat is not mainly an app for complete beginners. It is best suited for people who already train and want to record, review, and analyze their own data. It is ideal for anyone looking for a strength training log, workout tracker, fitness tracker, or exercise record app. Terms of Use (EULA): https://fitcat.emyu.co.jp/en/terms Privacy Policy: https://fitcat.emyu.co.jp/en/privacy

Screenshots

CoreWeight4 screens
FitCat4 screens

Verdict

The call

The clearest difference is update cadence: CoreWeight at every 6 days against FitCat's fortnightly. CoreWeight also leads on device support (4 vs 2). FitCat's advantage is iOS requirement (15.5 vs 18.0). On price, ads and in-app purchases 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. CoreWeight sells 3 in-app purchases, starting at $1.99 per month and FitCat sells 2 in-app purchases, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

CoreWeight ships an update every 6 days, FitCat fortnightly. The most recent releases landed on September 23, 2026 and September 1, 2026 respectively.

Scorecard3 real differences · 3 level
CoreWeight versus FitCat: the parameters behind the verdict, then further details
ParameterCoreWeightFitCat
PriceFreeFree
Update frequencyEvery 6 days — betterFortnightly
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPod
Requires iOS18.015.5 — better
Further details — not scored
Size15 MB154 MB
Age rating4+4+
DeveloperHiroomi KuboEmyu K.K.

In-app purchases

3 purchases

CoreWeight

Subscriptions2
  • Monthly Membership$1.991 Month
  • Annual Membership$9.991 Year
One-time1
  • Lifetime License$4.99
2 purchases

FitCat

Subscriptions2
  • FitCat Plus Monthly Plan$0.491 Month
  • FitCat Pro Monthly Plan$5.991 Month

Questions

Is CoreWeight free?
CoreWeight is free to download, with in-app purchases available.
Is FitCat free?
FitCat is free to download, with in-app purchases available.
Do CoreWeight or FitCat have ads?
Both CoreWeight and FitCat show ads.
Which is updated more often, CoreWeight or FitCat?
CoreWeight ships an update every 6 days, and FitCat fortnightly. Most recently, CoreWeight was updated on September 23, 2026 and FitCat on September 1, 2026.

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