RED Study vs Membership App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RED Study
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This app is designed for the RED study, initiated by OCON to evaluate blood loss during this medical research study. This app can only be used on invitation and participation of the RED study.
Membership App
Connect with thousands of orthopaedic professionals, access educational resources, and manage your membership on the go. This app helps you build your knowledge and network within the orthopaedic community.
- Connect with 38,000+ orthopaedic leaders
- Member-to-member direct messaging
- Access CME and online learning
- Manage membership details
- Find JAAOS and podcasts
- Access Advocacy Center
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The new AAOS Membership App gives you quick access to the resources, peers, and tools that will help you build your orthopaedic knowledge and grow within your profession. Boost your network with access to 38,000+ orthopaedic leaders from around the globe in the exclusive AAOS Member Directory. Our new member-to-member direct message feature helps you quickly connect and engage. Easily find what you need most -- your CME, JAAOS, Online Learning, OVT, Podcasts, Advocacy Center, and so many more member resources. Manage your membership while on the go. Easily update your profile, disclosure and personal preferences, view and access your past purchases, pay your balance and more. We're making it as simple as possible so that you can get back to what matters most -- your patients.
Screenshots
Verdict
The clearest difference is update cadence: Membership App at every 6 weeks against RED Study's every 14 months. On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
RED Study ships an update every 14 months, Membership App every 6 weeks. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | RED Study | Membership App |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.8 (19 ratings) — better |
| Positive reviews | — | 40.0% of reviews |
| Number of ratings | — | 19 — better |
| Update frequency | Every 14 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 7 MB | 49 MB |
| Age rating | 17+ | 12+ |
| Developer | ideact | American Academy of Orthopaedic Surgeons Mobile |
In-app purchases
RED Study
No in-app purchases
Membership App
No in-app purchases
