# InBody vs Source Performance

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.

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

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.

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.

## The numbers

| Metric | InBody | Source Performance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (1.9K ratings)](https://appshunter.io/ios/app/inbody/id884923678/reviews) | **[5.0 (9 ratings)](https://appshunter.io/ios/app/source-performance/id6590602459/reviews)** |
| Number of ratings | **1.9K** | 9 |
| Positive reviews | 51.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Free | Free |
| Best chart rank | **#58** | — |
| Size | 275 MB | 180 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [InBody Co., Ltd.](https://appshunter.io/developer/524989563) | [Source Performance LLC](https://appshunter.io/developer/1760047672) |

## What reviewers say

### InBody

[App page](https://appshunter.io/ios/app/inbody/id884923678)

**Currently charting:** #58 Top Free · Health & Fitness (US App Store)

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:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 👍 Accurate and helpful data
- 🚀 Easy to navigate
- 💪 Comprehensive features
- 📊 Useful for tracking progress
- 🤩 Great app for fitness journey

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔒 Privacy concerns
- 💻 Poor user experience
- 🤯 Frustrating sign-up process
- 🤖 Buggy and glitchy

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/source-performance/id6590602459)

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:** Apple Wallet

**In-app purchases:** none


## Frequently asked 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.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*