Comparison

CongruenceIndexApp vs Orthopedic Limbs Anatomy

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

Head to head
About

CongruenceIndexApp

Features
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Congruence is present when the center of the femoral head (ball) and that of the acetabulum (socket) coincide. Lack of hip congruence between the femoral head and the acetabulum leads to increased local contact stresses, degeneration and consequently to premature arthritis. Although corrective hip osteotomies for the realignment of the dysplastic acetabulum is the main goal of treatment strategies, if the joint space congruency remain fair this end up in failure. Joint congruency can be rated subjectively according to the surgeons experience but according to international literature, evaluation and monitoring hip joint congruency is crucial to judge and predict the outcome of treatment. The App measures objectively the congruence and gives values as percentage (Congruence Index) which can be used for evaluation or comparisons of treatments modalities like acetabular osteotomies in developmental dysplasia or Legg-Calve-Perthes disease of the hip. The CongruenceIndexApp is medical software aimed for orthopaedic surgeons, providing tools that allow doctors to: -Securely import medical images directly from the camera or stored photos -Offers a very convenient and most accurate possibly way to determine joint space congruency with two methods. With transparent circular template-Moses template- you try to find the best-fitted circle superimposed over the femoral head, you mark the femoral head center and with the same manner you locate the acetabular center of the weight bearing zone. When the center of the best-fitted circle of the acetabulum coincide with the center of the femoral head, the concruency of the joint is considered normal (CnI =100%).The app calculates automatically the congruency index. The results are printed as a percentage of congruency of the hip joint and the hip is categorized as normal or abnormal. -Save the planned images, for later review or consultation. Disclaimer All information received from the software output must be clinically reviewed regarding its plausibility before patient treatment! Congruence Index App indicated for assisting healthcare professionals. The app does not provide medical diagnoses or treatment advice. 
The software should be used only for educational purpose. Never use in real Surgery regarding its plausibility, validation is pending. Clinical judgment and experience are required to properly use the software. It only serves as a general guideline. All information received from the software output must be reviewed before any actual attempt. The App indicated for assisting during training. Judgment and experience are required to properly use the App. The software is not for primary image interpretation. Any influence to the operators in making decisions remains Surgeons own responsibility and experience. App does not dispense medical advice. Reference 1. Hartig-Andreasen C, Troelsen A, Thillemann TM, Søballe K. What factors predict failure 4 to 12 years after periacetabular osteotomy? Clin Orthop Relat Res. 2012 Nov;470(11):2978-87 2. Okano K, Enomoto H, Osaki M, Shindo H. Joint congruency as an indication for rotational acetabular osteotomy. Clin Orthop Relat Res. 2009;467:894–900. 3. Matheney Travis, Kim Young-jo, Zurakowski David, Matero Catherine, BA; Millis Michael. Intermediate To Long-term Results Following The Bernese Periacetabular Osteotomy And Predictors Of Clinical Outcome.The Journal Of Bone & Joint Surgery - Scientific Articles: 01 September 2009 - Volume 91 - Issue 9 - p. 2113-2123 4.Murphy S, Deshmukh R. Periacetabular osteotomy: preoperative radiographic predictors of outcome. Clin Orthop Relat Res. 2002; 405:168–174.

About

Orthopedic Limbs Anatomy

Explore the detailed anatomy of human limbs with this offline application. It provides clear explanations of muscles, including their origin, insertion, action, innervation, and blood supply, accompanied by simple images. Designed for medical students and professionals interested in human body anatomy.

Highlights
  • Detailed muscle explanations
  • Origin, insertion, action, innervation, blood supply
  • Simple muscle images
  • Upper and lower extremity organization
  • Nerves of upper and lower extremity
  • Offline functionality
  • Search feature
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Limbs Anatomy Application is a simple tool that contains an explanation of the anatomy of the muscle in a simple briefing way. It's organized into upper extremity and lower extremity regions in addition to nerves of the upper and lower extremity, and each region is divided into the muscles of that region. Each muscle is explained as: the origin of the muscle, the insertion, the action, innervation and blood supply of the muscle. And each muscle section contains a simple image of it. Limbs Anatomy application is designed for medical students, orthopedic surgeon and any medical professional person who is interested in anatomy of the human body. ---------------------------------------- Features of the app: - Simple, beautiful UI. - Searching feature. - The app is totally offline (no need for internet connection) - It's organized in a simple and easy way. If you have any idea to develop the application, please feel free to contact us to submit it. To have a free ads version with more muscles of body parts, download it from App Store: https://apps.apple.com/us/app/human-muscles-anatomy/id6444122179

Screenshots

CongruenceIndexApp4 screens
Orthopedic Limbs Anatomy4 screens

Verdict

The call

The clearest difference is price: Orthopedic Limbs Anatomy at Free against CongruenceIndexApp's $0.99. Orthopedic Limbs Anatomy also leads on iOS requirement (14.0 vs 18.6). CongruenceIndexApp's advantage is ads (none vs shown). On update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Orthopedic Limbs Anatomy is free to download; CongruenceIndexApp costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

CongruenceIndexApp ships an update every 9 months, Orthopedic Limbs Anatomy every 6 months. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 6 level
CongruenceIndexApp versus Orthopedic Limbs Anatomy: the parameters behind the verdict, then further details
ParameterCongruenceIndexAppOrthopedic Limbs Anatomy
Price$0.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 9 monthsEvery 6 months — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Ad-supported
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.614.0 — better
Further details — not scored
Size1 MB27 MB
Age rating17+17+
DeveloperORTHOPRACTIS.COM SINGLE MEMBER P.C.Ahmad Al Hariri

In-app purchases

None

CongruenceIndexApp

No in-app purchases

None

Orthopedic Limbs Anatomy

No in-app purchases

Questions

Is CongruenceIndexApp free?
CongruenceIndexApp costs $0.99, with no in-app purchases.
Is Orthopedic Limbs Anatomy free?
Orthopedic Limbs Anatomy is free to download, with no in-app purchases.
Do CongruenceIndexApp or Orthopedic Limbs Anatomy have ads?
Orthopedic Limbs Anatomy shows ads; CongruenceIndexApp does not.
Which is updated more often, CongruenceIndexApp or Orthopedic Limbs Anatomy?
CongruenceIndexApp ships an update every 9 months, and Orthopedic Limbs Anatomy every 6 months. Most recently, CongruenceIndexApp was updated on October 7, 2026 and Orthopedic Limbs Anatomy on October 14, 2026.

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