# CORE by Stay Sharp vs Inside Edge

The clearest difference is monetization model: Inside Edge at freemium against CORE by Stay Sharp's subscription. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. CORE by Stay Sharp sells 2 in-app purchases, starting at $8.99 per month and Inside Edge sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for CORE by Stay Sharp against 5.0 for Inside Edge. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

CORE by Stay Sharp ships an update every 4 weeks, Inside Edge fortnightly. Both last shipped on November 14, 2026.

## The numbers

| Metric | CORE by Stay Sharp | Inside Edge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/core-by-stay-sharp/id6450906479/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/inside-edge-figure-skating/id6753609941/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | Subscription | **Freemium** |
| Size | 608 MB | 21 MB |
| Requires iOS | **17.6** | 18.6 |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Mark Fitzgerald](https://appshunter.io/developer/477164822) | [Abril Marina Gonzalez Ramirez](https://appshunter.io/developer/1754092238) |

## What reviewers say

### CORE by Stay Sharp

[App page](https://appshunter.io/ios/app/core-by-stay-sharp/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:** Vision Pro support, iPhone Duo support

**In-app purchases (2)**

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


### Inside Edge

[App page](https://appshunter.io/ios/app/inside-edge-figure-skating/id6753609941)

This app helps figure skaters track their progress and plan training sessions. Log every attempt, monitor jump and spin consistency, and manage equipment like boots and blades. Unlock advanced features with a subscription.

**Highlights:** Plan practice sessions with custom elements, Log jump, spin, and footwork attempts, Track element consistency and progress, Manage skate boot and blade hours, Record coach's corrections and reference videos, Apple Watch integration for rinkside logging

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InsideEdge Pro | $5.99 | per month |
| InsideEdge Pro Founder | $23.99 | per year |
| InsideEdge Pro Yearly | $35.99 | per year |


## Frequently asked questions

### Is CORE by Stay Sharp free?

CORE by Stay Sharp is free to download, with in-app purchases available.

### Is Inside Edge free?

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

### Which has better reviews, CORE by Stay Sharp or Inside Edge?

CORE by Stay Sharp and Inside Edge are both rated 5.0 out of 5 on the App Store, from 4 and 5 ratings respectively.

### Do CORE by Stay Sharp or Inside Edge have ads?

Neither CORE by Stay Sharp nor Inside Edge shows ads.

### Which is updated more often, CORE by Stay Sharp or Inside Edge?

CORE by Stay Sharp ships an update every 4 weeks, and Inside Edge fortnightly. Most recently, CORE by Stay Sharp was updated on November 14, 2026 and Inside Edge on November 14, 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.*