Comparison

Global Knee Summit vs CupCalc

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

Head to head
About

Global Knee Summit

Features
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The Global Knee Innovation Summit app brings the prestigious annual orthopedic event directly to your fingertips. Join a global community of expert knee surgeons, researchers, and industry leaders to explore cutting-edge innovations in knee arthroplasty, sports medicine, and trauma In Dubai. Agenda & Scheduling: View the full 3-day agenda (January 22โ€“24, 2026, Dubai), build a personalized schedule, set reminders. Faculty Directory: Discover profiles of over 150+ world-renowned surgeons and speakers. Abstract Submissions: Submit your research for poster presentations in knee arthroplasty, sports, or trauma tracks. Networking: Connect with fellow attendees, schedule meetings, and access exhibitor information. Exhibitor Showcase: Explore the latest orthopedic technology from top companies, and learn through workshops and live demos.

About

CupCalc

Features
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CupCalc โ€” Spinopelvic Planning Reference CupCalc is an educational reference calculator for orthopaedic surgeons and trainees performing total hip arthroplasty. It applies published mathematical formulas to compute mobility-specific acetabular cup targets based on pelvic incidence, sacral slope, and femoral mobility classification. The calculations in CupCalc are derived entirely from peer-reviewed literature. No proprietary algorithms. No black-box outputs. Every number traces back to a published source โ€” accessible within the app. What CupCalc calculates: โ€” Functional anteversion and inclination targets referenced to either the anterior pelvic plane or standing AP radiograph โ€” Standing and sitting sacral slope with delta sacral slope mobility classification โ€” Pelvic femoral angle (standing and sitting) โ€” Anterior pelvic tilt correction for anatomic landmark guidance โ€” Safe zone plot with CSI thresholds โ€” Exportable PDF planning summary with full reference list Built on the published work of: Bodner, Dorr, Heckmann, Stefl, Kanawade, Wan, and colleagues whose research established the framework for functional spinopelvic planning in THA. For Fellows: CupCalc is free for 12 months for active arthroplasty fellows through the Fellow Access program. Apply within the app โ€” program verification is handled automatically via e-mail. Privacy: CupCalc does not collect, store, or transmit protected health information. Do not enter patient-identifying information into any field. Anonymous case labels only. CupCalc is an educational reference tool intended for use by qualified medical professionals. It performs published mathematical formulas and presents results for independent professional evaluation. It does not provide surgical recommendations, replace clinical judgment, or constitute medical advice. Not a medical device. Not cleared by the FDA. All clinical decisions remain the sole responsibility of the treating surgeon. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Global Knee Summit4 screens
CupCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: Global Knee Summit at none against CupCalc's 2. Global Knee Summit also leads on update cadence (weekly vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. CupCalc sells 2 in-app purchases, starting at $12.99 per year. Global Knee Summit asks for nothing beyond the download.

UpkeepUpdate frequency

Global Knee Summit ships an update weekly, CupCalc fortnightly. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

Scorecard2 real differences ยท 4 level
Global Knee Summit versus CupCalc: the parameters behind the verdict, then further details
ParameterGlobal Knee SummitCupCalc
PriceFreeFree
Update frequencyWeekly โ€” betterFortnightly
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 โ€” better
Further details โ€” not scored
Size36 MB42 MB
Age rating4+4+
DeveloperMatthew StellwagenZekko LLC

In-app purchases

None

Global Knee Summit

No in-app purchases

2 purchases

CupCalc

Subscriptions2
  • CupCalc Express1 Year trial$12.991 Year
  • CupCalc Pro1 Year trial$19.991 Year

Questions

Is Global Knee Summit free?
Global Knee Summit is free to download, with no in-app purchases.
Is CupCalc free?
CupCalc is free to download, with in-app purchases available.
Do Global Knee Summit or CupCalc have ads?
Neither Global Knee Summit nor CupCalc shows ads.
Which is updated more often, Global Knee Summit or CupCalc?
Global Knee Summit ships an update weekly, and CupCalc fortnightly. Most recently, Global Knee Summit was updated on September 19, 2026 and CupCalc on September 20, 2026.

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