# Edge Exercises vs Core by RTI

The clearest difference is rating: Core by RTI at 5.0 against Edge Exercises's 2.6. Edge Exercises's advantage is in-app purchases (none vs 2) and update cadence (every 3 days vs every 3 weeks). On price, ratings volume, 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. Edge Exercises asks for nothing beyond the download.

Core by RTI holds the better App Store score, 5.0 against 2.6. Both are backed by a comparable volume of ratings — 5 and 4 respectively.

Edge Exercises ships an update every 3 days, Core by RTI every 3 weeks. The most recent releases landed on September 16, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Edge Exercises | Core by RTI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (5 ratings)](https://appshunter.io/ios/app/edge-exercises/id1602940912/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/core-by-rti/id6450906479/reviews)** |
| Number of ratings | **5** | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | **Free** | Subscription |
| Size | 20 MB | 595 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dana Tang](https://appshunter.io/developer/1256600380) | [Mark Fitzgerald](https://appshunter.io/developer/477164822) |

## What reviewers say

### Edge Exercises

[App page](https://appshunter.io/ios/app/edge-exercises/id1602940912)

This app generates random figure skating edges, turns, and exercises to help skaters of all levels create unique practice sequences. It offers a vast number of combinations for varied training sessions.

**Highlights:** Random edge generation, Turn and exercise creation, Thousands of unique sequences, Suitable for all skill levels, Practice tool for figure skaters

**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 Edge Exercises free?

Edge Exercises 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, Edge Exercises or Core by RTI?

Core by RTI is rated higher. Edge Exercises averages 2.6 out of 5 from 5 ratings, while Core by RTI averages 5.0 from 4 ratings.

### Do Edge Exercises or Core by RTI have ads?

Neither Edge Exercises nor Core by RTI shows ads.

### Which is updated more often, Edge Exercises or Core by RTI?

Edge Exercises ships an update every 3 days, and Core by RTI every 3 weeks. Most recently, Edge Exercises was updated on September 16, 2026 and Core by RTI on October 8, 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.*