# Core.X vs Stacksy

The clearest difference is in-app purchases: Core.X at none against Stacksy's 2. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Stacksy sells 2 in-app purchases, starting at $9.99 per month. Core.X asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Core.X against 5.0 for Stacksy. Both are backed by a comparable volume of ratings — 10 and 16 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Core.X ships an update every 3 days, Stacksy every 2 days. The most recent releases landed on October 1, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Core.X | Stacksy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (10 ratings)](https://appshunter.io/ios/app/corex/id6755406927/reviews) | [5.0 (16 ratings)](https://appshunter.io/ios/app/stacksy/id6782694853/reviews) |
| Number of ratings | 10 | **16** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Every 2 days** |
| Monetization | **Free** | Subscription |
| Size | 113 MB | 65 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [WILSON INNOVATIONS LLC](https://appshunter.io/developer/1787937367) | [Velor4 LLC](https://appshunter.io/developer/6782694855) |

## What reviewers say

### Core.X

[App page](https://appshunter.io/ios/app/corex/id6755406927)

This platform streamlines gym and fitness studio operations by integrating class scheduling, member engagement, analytics, and payments. It offers members instant booking and progress tracking, while owners gain tools for managing operations, analyzing performance, and processing payments.

**Highlights:** Class scheduling and booking, Member engagement tools, Progress tracking and goals, Community social feed, Advanced analytics, Integrated payments and billing, Custom branding

**In-app purchases:** none


### Stacksy

[App page](https://appshunter.io/ios/app/stacksy/id6782694853)

Organize and track your personal peptide protocol with this private application. Manage your entire routine, including what peptides to take and when. Offers monthly and yearly subscription plans for full access.

**Highlights:** Organize peptide protocols, Track peptide dosages, Schedule peptide intake, Private routine management, GLP-1 tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stacksy Pro (Monthly) | $9.99 | per month |
| Stacksy Pro (Yearly) | $39.99 | per year |


## Frequently asked questions

### Is Core.X free?

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

### Is Stacksy free?

Stacksy is free to download, with in-app purchases available.

### Which has better reviews, Core.X or Stacksy?

Core.X and Stacksy are both rated 5.0 out of 5 on the App Store, from 10 and 16 ratings respectively.

### Do Core.X or Stacksy have ads?

Neither Core.X nor Stacksy shows ads.

### Which is updated more often, Core.X or Stacksy?

Core.X ships an update every 3 days, and Stacksy every 2 days. Most recently, Core.X was updated on October 1, 2026 and Stacksy on September 18, 2026.

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