# Core Change vs MetabolicTracker

The clearest difference is monetization model: MetabolicTracker at free against Core Change's free with in-app purchases. MetabolicTracker also leads on update cadence (every 10 days vs every 4 weeks). Core Change's advantage is ratings volume (51 vs 2) and iOS requirement (16.0 vs 26.2). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 4.9 for Core Change against 5.0 for MetabolicTracker. That said, the two scores are not equally well evidenced: Core Change has 51 ratings behind it against 2, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Core Change ships an update every 4 weeks, MetabolicTracker every 10 days. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Core Change | MetabolicTracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (51 ratings)](https://appshunter.io/ios/app/core-change/id6741929031/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/metabolictracker/id6758915298/reviews)** |
| Number of ratings | **51** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 38 MB | 4 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 12+ |
| Developer | [AJC LLC](https://appshunter.io/developer/1796247505) | [William Kastner](https://appshunter.io/developer/1875727802) |

## What reviewers say

### Core Change

[App page](https://appshunter.io/ios/app/core-change/id6741929031)

Browse and purchase class packs or memberships, view the class schedule, and filter by type. Easily manage your reservations, book classes, and track your upcoming sessions to stay committed to your fitness goals.

**Highlights:** Purchase class packs and memberships, View and filter class schedule, Manage class reservations, Book upcoming classes, Track fitness goals

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### MetabolicTracker

[App page](https://appshunter.io/ios/app/metabolictracker/id6758915298)

Track your ketogenic diet, carb intake, weight, and mood to understand how these factors influence each other. Gain insights into your metabolic health and make informed decisions about your diet and lifestyle.

**Highlights:** Ketogenic diet tracking, Carb intake monitoring, Weight tracking, Mood logging, Metric correlation analysis

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Core Change free?

Core Change is free to download, with no in-app purchases.

### Is MetabolicTracker free?

MetabolicTracker is free to download, with no in-app purchases.

### Which has better reviews, Core Change or MetabolicTracker?

MetabolicTracker is rated higher. Core Change averages 4.9 out of 5 from 51 ratings, while MetabolicTracker averages 5.0 from 2 ratings.

### Do Core Change or MetabolicTracker have ads?

Neither Core Change nor MetabolicTracker shows ads.

### Which is updated more often, Core Change or MetabolicTracker?

Core Change ships an update every 4 weeks, and MetabolicTracker every 10 days. Most recently, Core Change was updated on October 5, 2026 and MetabolicTracker on October 3, 2026.

---

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