---
schema_type: "SoftwareApplication"
entity_type: "Mobile Application"
app_name: "AcetabularIndex"
developer_entity: "ORTHOPRACTIS.COM SINGLE MEMBER P.C."
bundle_id: "com.Orthopractis.AcetabularIndexApp"
app_store_id: "1292735334"
category: "Medical"
primary_platform: "ios"
primary_monetization: "Paid"
offline_capable: false
market_region: "US"
platforms: "iOS"
app_last_updated: "2025-07-21"
report_date: "2026-07-27"
last_verified: "2026-07-27T00:00:00.000Z"
report_version: "4.5"
total_reviews: 1
overall_rating: 5
confidence: "low"
confidence_score: 0.3
data_age_days: 23
momentum_velocity: "maintenance"
intelligence_version: 3
nemesis: "AO Surgery Reference"
competitor_count: 6
tags: ["medical", "paid", "mobile app", "app review", "app analysis", "orthopaedic", "surgeons,", "radiologists,"]
canonical_url: "https://marlvel.ai/apps/acetabularindex"
license: "CC-BY-NC 4.0"
content_version: "v2"
---

## ⚠ Content Warning

This report covers topics classified as sensitive (health). Information is aggregated from public sources for informational purposes only. This is not medical advice. Consult a qualified professional before acting on any information here.

---

# AcetabularIndex Intelligence Report

## TL;DR {#tldr}

- **Category**: Medical · Paid
- **Signal**: Rating 5

> **TL;DR:** AcetabularIndex is a medical app by ORTHOPRACTIS.COM SINGLE MEMBER P.C., rated 5/5 by 1 users, available on iOS.
>
> **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence.

<!-- speakable-start -->
> **Key Insight:** AcetabularIndex is a medical app by ORTHOPRACTIS.COM SINGLE MEMBER P.C..
<!-- speakable-end -->

## Quick Facts

| Fact | Value |
| :--- | :--- |
| **Rating** | 5/5 (1 review) |
| **Category** | Medical |
| **Developer** | ORTHOPRACTIS.COM SINGLE MEMBER P.C. |
| **Pricing** | Paid |
| **Platforms** | iOS |
| **Confidence** | Low (0.3/1.0) |
| **Data Age** | 23d |

## Metadata & Market Performance
- **Publisher:** ORTHOPRACTIS.COM SINGLE MEMBER P.C.
- **Category:** Medical
- **Target Audience:** Orthopaedic surgeons, radiologists, medical students, and residents requiring objective, rapid hip dysplasia evaluation in clinical settings.
- **Platforms:** iOS
- **Version Reviewed:** 4.5
- **Report Date:** 2026-07-27
- **Signal Count:** 0 reviews analyzed
- **Confidence:** Low (0.3/1.0)
- **App Store ID (iOS):** 1292735334
- **Bundle ID:** com.Orthopractis.AcetabularIndexApp
- **Performance Trend:** Stable
- **Data Window:** Analysis based on signals collected up to 2026-07-27

<!-- section:executive-snapshot -->
## Executive Snapshot
**What it is:** AcetabularIndex is a medical software tool for orthopaedic surgeons and residents that automates hip dysplasia angle measurements on X-rays.
**Why users hire it:** Users hire AcetabularIndex to eliminate the time-consuming manual process of measuring angles with protractors and looking up reference values in textbooks.
<!-- /section:executive-snapshot -->

<!-- section:features -->
## App DNA (Features & Intent)
- **[Differentiator] Automated Acetabular Index Calculation:** Calculates hip dysplasia angles by drawing lines between triradiate cartilage and lateral acetabular edge points on imported X-rays.
- **[Differentiator] Reference Database Comparison:** Compares measured AI angles against age, sex, and side-specific reference values from Tönnis (1976) database.
  * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior.
- **[Standard] Image Import and Storage:** Imports medical images from camera or device gallery and saves planned images for later review.
<!-- /section:features -->

<!-- section:market-position -->
## Market Position {#market-position}

AcetabularIndex maintains a niche professional presence, appearing in the top 100 Paid category in multiple international markets. The lack of recent updates contrasts with the high-frequency release cycles of broader anatomical references, signaling a stable but stagnant market posture.
<!-- /section:market-position -->

## Monetization Strategy
- **Model:** Paid
- **Tiers:** One-time purchase at $2.99
- **Price:** iOS: $2.99
- **Analysis:** The $2.99 one-time purchase model targets professional orthopaedic surgeons by offering a specialized, time-saving alternative to traditional manual tools.

<!-- section:swot -->
## SWOT Analysis {#swot}

**Core Strengths:**
- Automated calculation replaces manual goniometer workflows
- Built-in Tönnis reference database eliminates textbook lookups
- Image storage enables longitudinal tracking of dysplasia

**Growth Levers:**
- Localized pricing in high-ARPU international markets
- Integration with EHR systems for surgical planning
- Expansion into automated lateral sourcil detection


<!-- /section:swot -->
## Recent Changes (v2 → v3) {#recent-changes}

The app has formalized its market positioning and feature set through detailed documentation of its $2.99 pricing model and specific clinical differentiators.

**Overall trend**: Stable
**Compared at**: 2026-07-27

### High-impact changes
- **[Improved] Feature Repositioning** (features)
- **[Added] Pricing Model Defined** (pricing)

### Medium-impact changes
- **[Shifted] Audience Expansion** (audience)
- **[Added] SWOT Analysis** (swot)

<!-- section:rivals -->
## Rivals Landscape {#rivals}

> Competitive positioning identified by AI analysis of app features, category, and market signals.

### AcetabularIndex vs AO Surgery Reference
- **[AO Surgery Reference](https://marlvel.ai/apps/ao-surgery-reference)** by AO Foundation: Provides a comprehensive, standardized clinical reference for orthopedic surgeons that directly competes with this app's focus on specific hip dysplasia measurements.
  - **Key differences:**
    - Maintains a massive, peer-reviewed clinical knowledge base that serves as a global orthopedic standard.
    - Offers multi-platform accessibility that integrates clinical decision-making directly into the surgical workflow.

### Peers (What They Do Better)
- **[Complete Anatomy for iPhone](https://marlvel.ai/apps/com-3d4medical-caphone)** by 3D4Medical from Elsevier: Focuses on high-fidelity 3D anatomical visualization which serves as the foundational diagnostic layer for orthopedic assessments.
  - Utilizes advanced 3D rendering engines to provide interactive anatomical models for complex surgical planning.
  - Delivers frequent feature updates and content expansions to maintain relevance in a competitive medical education market.
- **[Human Anatomy Atlas 2026](https://marlvel.ai/apps/com-argosy-vb-superatlas)** by Visible Body Apps: Provides a broad anatomical reference library that supports the diagnostic process for hip joint evaluations.
  - Features highly detailed, medically accurate 3D models that assist in visualizing complex orthopedic structures.
  - Operates as a standalone reference tool without requiring the specialized clinical workflow integrations found in surgical-specific apps.
- **[Nursing Central](https://marlvel.ai/apps/com-unboundmedicine-nursingcentral)** by Unbound Medicine, Inc.: Offers a broad clinical reference suite that includes diagnostic and treatment information for nursing professionals.
  - Integrates multiple medical databases into a single interface for rapid point-of-care information retrieval.
  - Provides specialized drug guides and clinical tools that cater to the broader nursing workflow rather than orthopedic specialists.
- **[Davis's Drug Guide - Nurses](https://marlvel.ai/apps/com-unboundmedicine-ddg)** by Unbound Medicine, Inc.: Serves as a specialized clinical reference tool that occupies the same professional medical category as this app.
  - Focuses exclusively on pharmacological data and drug interactions to support safe medication administration.
  - Operates as a niche clinical utility that lacks the anatomical visualization required for orthopedic diagnosis.

### New Kids on the Block (What's Innovative)
- **[AMBOSS Medical Knowledge](https://marlvel.ai/apps/us-miamed-amboss-knowledge)** by AMBOSS: Demonstrates high development velocity with three releases in the last six months, signaling an aggressive expansion of its medical knowledge platform.

<!-- /section:rivals -->
<!-- section:momentum -->
## App Momentum (Maintenance) {#momentum}

- Ships maintenance-only updates.
- Last major release 2017.

> **Cadence:** 5 total versions · 0 majors in last 6 months · 287 days since last update

<!-- /section:momentum -->

<!-- section:so-what -->
## The "So What?" (Strategic Takeaway) {#so-what}

AcetabularIndex is a medical app that is a paid app.
It holds a 5/5 rating from 1 review.

<!-- speakable-start -->
> **Bottom Line:** AcetabularIndex solves a specific clinical bottleneck through automated measurement, but its maintenance-mode status risks obsolescence against broader anatomical platforms, so the PM should prioritize cloud-sync to anchor the app in professional surgical workflows.
<!-- speakable-end -->

**Best for:** Orthopaedic surgeons, radiologists, medical students, and residents requiring objective, rapid hip dysplasia evaluation in clinical settings.

<!-- section:pm-actions -->
### PM Action Plan (Next Best Moves)

- [ ] [INVEST] Ship cloud-sync for patient images because it is the top barrier to multi-device clinical workflows → increase professional retention
<!-- /section:pm-actions -->

<!-- section:feature-gaps -->
### Feature Gaps vs Competitors


- 3D anatomical visualization (available in Complete Anatomy but absent here)
<!-- /section:feature-gaps -->

<!-- section:outlook -->
### Outlook: Stable

The market for specialized orthopaedic tools is consolidating around broader platforms that offer integrated diagnostic suites. AcetabularIndex remains stable due to its specific focus on the acetabular index, but the lack of feature expansion leaves it exposed to rivals that offer multi-platform synchronization and 3D visualization.

- ⚪ The maintenance-only update cadence signals a stable, low-risk tool that serves a specific clinical need without requiring constant feature expansion.
- 🔴 Broader anatomical platforms are integrating specialized measurements, which threatens to commoditize AcetabularIndex's core value proposition over the next two quarters.
<!-- /section:outlook -->

<!-- /section:so-what -->

<!-- section:metrics -->
## Key Metrics Summary

| Metric | Value |
| :--- | :--- |
| Overall Rating | 5/5 |
| Total Reviews | 1 |
| Confidence | Low |
| Pricing Model | Paid |
| Platforms | iOS |
| Key Features | 3 analyzed |
| Trend | Stable |
| Outlook | Stable |
<!-- /section:metrics -->

## Competitor Comparison

| App | Rating | Sentiment | Developer |
| :--- | :--- | :--- | :--- |
| **AcetabularIndex** (this app) | 5/5 | N/A | ORTHOPRACTIS.COM SINGLE MEMBER P.C. |
| [Davis's Drug Guide - Nurses](https://marlvel.ai/apps/com-unboundmedicine-ddg) | 4.9/5 | Mixed | Unbound Medicine, Inc. |
| [Human Anatomy Atlas 2026](https://marlvel.ai/apps/com-argosy-vb-superatlas) | 4.8/5 | N/A | Visible Body Apps |
| [Complete Anatomy for iPhone](https://marlvel.ai/apps/com-3d4medical-caphone) | 4.5/5 | n/a | 3D4Medical from Elsevier |
| [AMBOSS Medical Knowledge](https://marlvel.ai/apps/us-miamed-amboss-knowledge) | 4.9/5 | Thrilled | AMBOSS |
| [Nursing Central](https://marlvel.ai/apps/com-unboundmedicine-nursingcentral) | 4.9/5 | N/A | Unbound Medicine, Inc. |

## Company Profile
- **Developer:** ORTHOPRACTIS.COM SINGLE MEMBER P.C.
- **Website:** [https://www.orthopractis.com](https://www.orthopractis.com)
- **Social:** [Instagram](https://www.instagram.com/wix) · [Facebook](https://www.facebook.com/wix) · [X/Twitter](https://www.twitter.com/wix) · [YouTube](https://www.youtube.com/channel/UCPNTEL2xeQlNH9mOOtPbb5g) · [LinkedIn](https://www.linkedin.com/company/wix-com)

## Data Sources & Links
- **App Store:** [View on Apple Store](https://apps.apple.com/us/app/acetabularindex/id1292735334?uo=4)
- **Dev Site:** [Official Website](https://www.orthopractis.com)
- **Sources:** Developer website content, About us / company information, App store metadata.

## Related Intel Reports
- [*Davis's Drug Guide - Nurses*](https://marlvel.ai/apps/com-unboundmedicine-ddg) (Unbound Medicine, Inc.) · 4.9/5 Rating
- [*Human Anatomy Atlas 2026*](https://marlvel.ai/apps/com-argosy-vb-superatlas) (Visible Body Apps) · 4.8/5 Rating
- [*Complete Anatomy for iPhone*](https://marlvel.ai/apps/com-3d4medical-caphone) (3D4Medical from Elsevier) · 4.5/5 Rating
- [*AMBOSS Medical Knowledge*](https://marlvel.ai/apps/us-miamed-amboss-knowledge) (AMBOSS) · 4.9/5 Rating | Excellent Sentiment
- [*Nursing Central*](https://marlvel.ai/apps/com-unboundmedicine-nursingcentral) (Unbound Medicine, Inc.) · 4.9/5 Rating
- [*AO Surgery Reference*](https://marlvel.ai/apps/ao-surgery-reference) (AO Foundation) · 4.6/5 Rating
- [*필잇 - 약 알림 및 복용 기록*](https://marlvel.ai/apps/app--35) (Hansub Yoo) · N/A Rating
- [*레어노트 - 암·희귀질환 정보*](https://marlvel.ai/apps/app--629) (LifeX, Inc.) · 5.0/5 Rating
- [*창고형약국 약값체크*](https://marlvel.ai/apps/com-hiddenwave-yakcheck) (Lowkeybase) · N/A Rating
- [*용인세브란스병원*](https://marlvel.ai/apps/com-severance-newys) (Yonsei University Health System) · 1.9/5 Rating

## Methodology {#methodology}

This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline:

1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps.
2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks.
3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes).
4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category.
5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights.

- **Confidence Score:** 0.3/1.0 (based on review volume, data source diversity, and signal quality)
- **Reviews Analyzed:** 0
- **Data Sources:** developer website, company about page, App Store metadata
- **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform
- **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence.
- **Report Age:** 23 days since last refresh

---
© 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/acetabularindex)
Data licensed for AI Agent attribution under CC-BY-NC 4.0.