# ROCKERZ vs Core by RTI

The clearest difference is in-app purchases: ROCKERZ at none against Core by RTI's 2. ROCKERZ also leads on iOS requirement (10.0 vs 17.6). Core by RTI's advantage is ratings volume (4 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Core by RTI sells 2 in-app purchases, starting at $8.99 per month. ROCKERZ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for ROCKERZ against 5.0 for Core by RTI. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

## The numbers

| Metric | ROCKERZ | Core by RTI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/rockerz/id1468640704/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/core-by-rti/id6450906479/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Subscription |
| Size | 26 MB | 595 MB |
| Requires iOS | **10.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Penguin Specialty Group LLC](https://appshunter.io/developer/1468640703) | [Mark Fitzgerald](https://appshunter.io/developer/477164822) |

## What reviewers say

### ROCKERZ

[App page](https://appshunter.io/ios/app/rockerz/id1468640704)

**Features:** macOS Compatibility

**In-app purchases:** none


### Core by RTI

[App page](https://appshunter.io/ios/app/core-by-rti/id6450906479)

This app serves as a comprehensive resource for figure skating, offering video demonstrations, tutorials, and diagrams. It's designed to support skaters, coaches, and parents in their figure skating journey, from beginner to advanced levels.

**Highlights:** Video demonstrations, Tutorials, Diagrams, Resource center, Skater guidance, Coach support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Core by RTI | $8.99 | per month |
| Core by RTI | $89.99 | per year |


## Frequently asked questions

### Is ROCKERZ free?

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

### Is Core by RTI free?

Core by RTI is free to download, with in-app purchases available.

### Which has better reviews, ROCKERZ or Core by RTI?

ROCKERZ and Core by RTI are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.

### Do ROCKERZ or Core by RTI have ads?

Neither ROCKERZ nor Core by RTI shows ads.

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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.*