Comparison

InBody vs Source Performance

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

Head to head
About

InBody

Track your body composition, blood pressure, and daily activity to understand your overall health. Sync with devices to monitor progress and set fitness goals.

Highlights
  • Body composition analysis
  • Blood pressure monitoring
  • Activity and nutrition logging
  • Progress tracking
  • Device syncing
  • National ranking and friend competitions
Features
Read full description

At InBody, our goal is to bring evidence-based health and wellness data to more individuals so they can find health clarity that stretches far beyond a singular number on a scale. Using our mobile app in conjunction with one of our body composition analyzers or blood pressure monitors, users can directly measure muscle, fat, water, and blood pressure to see how these values, when combined with activity levels and nutritional habits, create a snapshot of whole body health. By regularly reviewing this information, individuals will be able to track progress over time and use this progress as momentum for continued, healthy improvement. Use the InBody App to: ● Evaluate key summaries of recent InBody Tests, active minutes, and nutritional information from the new overview dashboard ● View historic data for body composition in up to one month increments ● Review accurate body composition testing results, graphs, and interpretations ● Monitor blood pressure levels by comparing test results over time ● Manage caloric outputs and monitor daily movement, such as step counts and active minutes, through our training log. Use values to see how they correlate with changes in body composition over time ● Record daily exercise and food intake using our digital tracking log ● See your national ranking and start healthy competitions with friends and family, based on your InBody Score and weekly step count ● Track sleep time by syncing the InBody BAND 2 with the app What’s New Hey there. You’re not alone during this transformative time. We’re currently undergoing some healthy composition changes to help further simplify your understanding of personal health and wellness. Our new makeup looks a little something like: - An improved app dashboard, which displays data on your latest InBody Tests, blood pressure outputs, daily activity levels, body composition goals, and nutritional progress. - A blood pressure hub where you can review the history of your BP 170 and BP 250 test results. - An updated Result Sheet that provides visual representations of changes in body composition analysis, including fluctuations in skeletal muscle, body fat, body water, and more. *Please note: Output availability will vary depending on the InBody device used for testing. - A graphic depiction of differences in segmental body composition that is available to testing facilities using LookinBody Web with an InBody 570 or 770 unit. - A digital diet and exercise log that can be used to fit healthy changes into your current lifestyle. Within this section, you can also set attainable muscle and fat goals based on scientific data formulated by the InBody Clinical Research team. *Please note: The guide(s) are for reference purposes only and should not be taken as professional medical advice. - An enhanced connection between your InBody wearable device and the app. By working together, these technologies can help you effectively track daily activity levels and sleep habits over time. - An online training journal that you can use to record time spent exercising and analyze body composition changes in relation to activity type, time, and intensity. - A way to see how you measure up. Use our national rankings board to start a friendly competition between peers at your testing facility, friends, or family members. *InBody App provides that Users can sync steps / body composition data to the Apple Health app. * This app is not intended for medical diagnosis or treatment. It provides health and wellness information for general reference only. Medical decisions should be made in consultation with healthcare professionals.

About

Source Performance

This app provides personalized workout programs and tracks your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach support. Achieve your health goals with guided exercises and progress tracking.

Highlights
  • Access and track training plans
  • Follow exercise and workout videos
  • Track meals and food choices
  • Monitor daily habits
  • Set and track health goals
  • Message your coach in real-time
  • Track body measurements and progress photos
Features
Read full description

With the Source Performance App, you will have access to workout programs designed specifically to help you reach your fitness and health goals! You can follow & track your workouts, your nutrition, your lifestyle habits, measurements and results–all with the help of your coach. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!

Screenshots

InBody4 screens
Source Performance4 screens

Verdict

The call

The clearest difference is review sentiment: Source Performance at 100% against InBody's 51%. Source Performance also leads on rating (5.0 vs 3.9). InBody's advantage is update cadence (every 5 days vs every 2 months) and ratings volume (1.9K vs 9). On price, ads, in-app purchases and monetization model 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

Source Performance holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: InBody has 1.9K ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 51% of InBody's written reviews are positive against 100% of Source Performance's.

UpkeepUpdate frequency

InBody ships an update every 5 days, Source Performance every 2 months. The most recent releases landed on October 1, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 5 level
InBody versus Source Performance: the parameters behind the verdict, then further details
ParameterInBodySource Performance
PriceFreeFree
Rating3.9 (1.9K ratings)5.0 (9 ratings) — better
Positive reviews51.0% of reviews100.0% of reviews — better
Number of ratings1.9K — better9
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#53 — better—
DevicesiPhone, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS13.0 — better15.1
Further details — not scored
Size275 MB180 MB
Age rating4+4+
DeveloperInBody Co., Ltd.Source Performance LLC

Customer experience

InBody

All ratings1,858 ratings
Positive71.5%
Neutral4.1%
Negative24.4%
Written reviews633 reviews
Positive51.0%
Neutral9.6%
Negative39.3%

Source Performance

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

InBody

Reported bugs

5 issues
  • Unable to verify email/phone
  • Inconsistent sync with gym devices
  • Crashes when manually entering data
  • Password reset issues
  • Disappearing historical data

Requested features

5 requests
  • Support for latest device models
  • Integration with Apple Health
  • Ability to export data
  • More guidance on interpreting results
  • Option to set fitness goals

Source Performance

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

InBody

No in-app purchases

None

Source Performance

No in-app purchases

Questions

Is InBody free?
InBody is free to download, with no in-app purchases.
Is Source Performance free?
Source Performance is free to download, with no in-app purchases.
Which has better reviews, InBody or Source Performance?
Source Performance is rated higher. InBody averages 3.9 out of 5 from 1.9K ratings, while Source Performance averages 5.0 from 9 ratings.
Do InBody or Source Performance have ads?
Neither InBody nor Source Performance shows ads.
Which is updated more often, InBody or Source Performance?
InBody ships an update every 5 days, and Source Performance every 2 months. Most recently, InBody was updated on October 1, 2026 and Source Performance on September 18, 2026.

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