Comparison

CORE by Stay Sharp vs SynchroCenter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CORE by Stay Sharp

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
Read full description

Core by RTI is now CORE by Stay Sharp. It's the same library under a new name, and existing subscriptions carry over. CORE is a figure skating reference organised the way skating is taught. Open an area, pick the element and watch it done properly. There are no feeds and no shopping, just the reference. SIX AREAS • Singles: every jump with Mike Weiss, spins from basics to Level 4 features, Dartfish jump analysis with Ben Ferreira, and IJS in 30 seconds • Skating Skills: the Skating Skills tests (formerly Moves in the Field) level by level, with a demonstration of every move in the pattern • Solo Dance: solo pattern dances and dance elements, tutorials first, with the pattern diagrams alongside • Partner Dance: partner pattern dances, demonstrated, with the pattern documents for each dance • Dance Music: music for the pattern dances, track by track, ready for practice • Rules & documents: rulebooks, test sheets and pattern documents you can open at the rink Also in CORE: Club Finder, with skating clubs across the U.S. listed state by state. NEW: CORE AI Ask a question about a rule or element in plain words. CORE AI answers from the official handbooks and CORE videos, and every answer shows where it came from. Tap to open the handbook page or play the video. If the sources don't cover your question, CORE AI says so. CORE AI is a study aid; for competition decisions, check the current rulebook and your officials. NEW: SEARCH Find any element in seconds across every demonstration, tutorial and document. Searching "moves in the field" finds Skating Skills too. NEW: MAC AND APPLE TV • Mac: the whole library in a sidebar, with Search (⌘F) and Resume, plus a jump view with rotation, camera angle and playback speed controls. • Apple TV: featured demonstrations and the free sampler on the big screen, spin pages with a level control, every solo and partner dance, and CORE AI. One subscription unlocks every device. FREE SAMPLER Demonstrations from across the library, open to everyone with no subscription needed. STAY SHARP, INSIDE THE APP Tap Stay Sharp to browse the Stay Sharp range and book skate sharpening. On Apple TV, send a product to your iPhone, ready to buy. SUBSCRIPTION CORE is free to download, with the sampler open to everyone. A CORE subscription unlocks the full library and CORE AI on every device. • Monthly: $8.99 per month • Annual: $89.99 per year Prices are in U.S. dollars and may vary by country. Payment is charged to your Apple Account when you confirm the purchase. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage or cancel any time in your Apple Account settings. Privacy Policy: https://www.staysharpsports.com/policies/privacy-policy Terms of Use: https://www.staysharpsports.com/policies/terms-of-service Giving you the competitive edge, every time.

About

SynchroCenter

Your all-in-one synchronized skating companion. Get real-time competition updates, detailed results with scoring breakdowns, and explore teams worldwide. Track your favorite teams for personalized performance insights.

Highlights
  • Real-time competition schedules
  • Comprehensive results archive
  • IJS scoring breakdowns
  • Global team exploration
  • Favorite team tracking
  • Personalized updates
Features
Read full description

Experience the world of Synchronized Skating right at your fingertips. SynchroCenter is the ultimate companion for skaters, coaches, parents, and fans of synchronized skating. Whether you’re following a local developmental team or the world’s elite Senior lines, our app brings you closer to the ice with real-time updates, comprehensive data, and personalized tracking. STAY AHEAD OF THE COMPETITION Never miss a beat with our updated competition schedules. From U.S. Sectionals and Nationals to the ISU Challenger Series and World Championships, get the dates, locations, and event details you need to plan your season. COMPREHENSIVE RESULTS ARCHIVE Relive the glory and analyze the trends. Access a deep database of past competition results, including IJS scoring breakdowns. See how scores have evolved and track the podium history of the world's most iconic events. EXPLORE TEAMS GLOBALLY Discover synchronized skating teams from across the United States and around the world. TRACK YOUR FAVORITES Make the app your own! Follow your favorite teams to receive dedicated updates on their performances, results, and ranking shifts throughout the season. Join the community and celebrate the precision, teamwork, and passion of synchronized skating with SynchroCenter.

Screenshots

CORE by Stay Sharp4 screens
SynchroCenter4 screens

Verdict

The call

The clearest difference is in-app purchases: SynchroCenter at none against CORE by Stay Sharp's 2. SynchroCenter also leads on update cadence (every 3 days vs every 4 weeks) and ratings volume (15 vs 4). CORE by Stay Sharp's advantage is device support (4 vs 2). On price, rating, ads and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CORE by Stay Sharp sells 2 in-app purchases, starting at $8.99 per month. SynchroCenter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CORE by Stay Sharp against 4.9 for SynchroCenter. Both are backed by a comparable volume of ratings — 4 and 15 respectively.

UpkeepUpdate frequency

CORE by Stay Sharp ships an update every 4 weeks, SynchroCenter every 3 days. The most recent releases landed on November 14, 2026 and November 9, 2026 respectively.

Scorecard5 real differences · 5 level
CORE by Stay Sharp versus SynchroCenter: the parameters behind the verdict, then further details
ParameterCORE by Stay SharpSynchroCenter
PriceFreeFree
Rating5.0 (4 ratings) — better4.9 (15 ratings)
Positive reviews100.0% of reviews—
Number of ratings415 — better
Update frequencyEvery 4 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, Mac, Apple TV — betteriPhone, iPad
Requires iOS17.617.6
Further details — not scored
Size608 MB5 MB
Age rating4+4+
DeveloperMark FitzgeraldFranky Sze

Customer experience

CORE by Stay Sharp

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

SynchroCenter

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

CORE by Stay Sharp

Subscriptions2
  • Core by RTI$8.991 Month
  • Core by RTI$89.991 Year
None

SynchroCenter

No in-app purchases

Questions

Is CORE by Stay Sharp free?
CORE by Stay Sharp is free to download, with in-app purchases available.
Is SynchroCenter free?
SynchroCenter is free to download, with no in-app purchases.
Which has better reviews, CORE by Stay Sharp or SynchroCenter?
CORE by Stay Sharp is rated higher. CORE by Stay Sharp averages 5.0 out of 5 from 4 ratings, while SynchroCenter averages 4.9 from 15 ratings.
Do CORE by Stay Sharp or SynchroCenter have ads?
Neither CORE by Stay Sharp nor SynchroCenter shows ads.
Which is updated more often, CORE by Stay Sharp or SynchroCenter?
CORE by Stay Sharp ships an update every 4 weeks, and SynchroCenter every 3 days. Most recently, CORE by Stay Sharp was updated on November 14, 2026 and SynchroCenter on November 9, 2026.

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