29K iOS Apps Tracked Updated 9 min ago Revenue Forecasts
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50
BU Score
Solid

AO Surgery Reference

4.4 ✍️ Editor
✍️ bumetric analysis

AO Surgery Reference is an iOS app from AO Foundation in the Education category, currently rated 4.4★ across 14 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Our BU Score puts it at 50: Solid (established niche player). For a Education app, that means established niche player.

Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
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since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mature app (15y old)METRIC
+$1,500
Good rating (4.4★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Single-language (English only)METRIC
−$400
Pre-traction phase (14 ratings)METRIC
−$300
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 518 KB🔞 17+📱 iOS 13.0+🔖 v4.1.1🔄 updated 11mo ago🌐 EN📂 Education💰 Paid🚀 Launched 2010 (15y old)

📝 About this app

QUICK ONLINE REFERENCE IN CLINICAL LIFE

Gain easy access to the award-winning AO Surgery Reference. AO Surgery Reference is an online repository for surgical knowledge. It describes the complete surgical management process from diagnosis to aftercare for all fractures of a given anatomical region, and also assembles relevant material that the AO has published before. It gives access to:
 
• aid in surgical decision making for 353 fracture types
• 172 approaches
• 1222 surgical procedures
• all richly illustrated with more than 30'000 Illustrations

and much more.

To ensure the quality of the content, it is authored, edited, and peer reviewed by experienced AO Faculty from all over the world, some of which are also well-known textbook authors/editors.

This is a relaunch of the AO Surgery Reference app utilizing the same responsive user interface that was released February 2020.

The highlights are:
• Consistent navigational logic and user experience on all screen sizes
• Inclusion of feline, canine, and equine fracture care
• Combination of Preparation – Approach – Reduction and Fixation – Aftercare into one step called treatment.
• Introduction of a powerful search function, allowing simplifications of the user interface as it replaces previous shortcuts.

🆕 What's New · v4.1.1

Bug Fixes and Improvements:
Various bug fixes to enhance stability and performance.
Adjustments for a smoother and more reliable app experience.
Thank you for your feedback — we're continuously working to improve your experience

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
AO Surgery Reference
Developer
AO Foundation
Bundle ID
org.aofoundation.aosurgery
App Store URL
Open in App Store
Category
Education
Content rating
17+
Languages
EN

Company

Website
www.aofoundation.org
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$86/mo
Top-grossing rank
Outside top 100 in US Education
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
Not found
Recent App Store Reviews15 latest · avg 4.73★ · 93.3% 5★ · 6.7% 1★
5★
14 (93%)
4★
0 (0%)
3★
0 (0%)
2★
0 (0%)
1★
1 (7%)
+0 ratings/week
Praise: great ×10 best ×2 amazing ×2 perfect ×1 fantastic ×1
Top positive
★★★★★ Great for Oral and Maxillofacial Surgery Residents
A must have for all OMFS residents.…
★★★★★ Great App
I would pay for an offline version. It is that good. Use this in ER a lot.…
Top negative
★☆☆☆☆ App not working
This is a great app when it’s working however, lately whenever I open it, nothing happens and I’m looking at a blank white screen.…
★★★★★ The best kind of effort put in to orthopaedics world!
I'm seriously impressed by the way this app works, it's a huge benefit for any orthopaedic surgeon who is about to deal with a variety of cases after stepping in to operation theatre each morning, surgeons might already know most …
📈Ratings growth14 ratings+1300% lifetimeShow 3-year history estimate ▾Nov 2010Apr 2024May 2026
Tracked (17 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.

More by AO Foundation

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Full revenue analysis
Read the article-style breakdown for AO Surgery Reference: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →