***** DON'T MISS! - Number 1 Free Medical iPad app in over 95 countries worldwide
***** NEW anatomical models that have more detail and take less processing power
***** Groundbreaking 3D Technology - No competitor competes with graphics and medical accuracy
***** Compatible with iPad 2, new iPad (3rd generation), iPad 4, iPad mini, iPhone 4S, iPhone 5 and iPod 5th generation and newer

Essential Skeleton 4 is a fully functional, self-contained app covering the essential anatomy of the skeleton. This app is being offered free to demonstrate the groundbreaking 3D technology and innovative design inherent in 3D4Medical's new range of apps.

3D4Medical have developed a cutting edge 3D graphics engine designed specifically to maximize what can be done with anatomical models in the mobile and Mac environment.

Now 3D4Medical have also created custom built anatomical models which have been built from the ground up specifically for the proprietary 3D Display engine. The result is unparalleled graphics and functionality.
It is a stand alone app and does not contain any in-app purchase requirements.

We encourage you to download this app, as well as the free version of any competitor's app. Compare and decide for yourself which is better in terms of 3D models, functionality, medical accuracy and ease of use. Afterwards, let us know -- we'd love to hear from you!

Essential Skeleton 4 is responsive, visually stunning and effortless. The app is fully 3D, meaning that you can easily manipulate the skeleton and individual bones, as well as view them in isolation from any angle. Our new Multiple Selection Mode allows you to select multiple bones and isolate, hide or fade them.

- New 3D technology via 3D4Medical's latest graphics engine.
- Simple navigation and user friendly, intuitive interface.
- Pin feature: Create customized pins with notes and place anywhere on the 3D model.
- Correct audio pronunciation, Latin nomenclature and description for each bone.
- Select areas or the entire skeletal system using the Breadcrumb Trail.
- Multiple Selection Mode.
- Create and save custom views with Bookmarks.
- Multiple search options.
- Dynamic quiz function - Drag and Drop and Multi-choice.
- Extensive social media tools and sharing capability.

We take pride in our apps at 3D4Medical and continually strive to engage with our customers. From the first edition of Muscle System Pro, we have consistently listened to our users and upgraded our apps, continually and throughout.

Email us via the App Feedback address below to engage with our development process:

Also please watch the help videos using this link:

What’s New

Version 4.5.2

This app has been updated by Apple to use the latest Apple signing certificate.

Added support for iPhone X

Ratings and Reviews

4.8 out of 5
5.6K Ratings

5.6K Ratings

Jaleeleo ,

Honestly... This is the best free app, ever!

This app is extremely useful compared to other apps that I’ve tried using to learn the skeletal structure. Though, it doesn’t list EVERY SINGLE small detail that my text book would, it still is incredibly useful and accurate. Moreover, I love the features that it comes with. I love how you can isolate the bone(s) of interest, fade other bones, take notes, get more info, quiz yourself, and much more in order to learn the material.
The only cons I’ve came across is typing a word and the structure of interest isn’t available (but maybe it has a different name I’m not aware of). Secondly, it doesn’t list the foramen(s) that I’m interested in. But that’s no issue Google didn’t solve.
I would recommend this app for anyone who is trying to learn more about the skeletal system. I’m currently taking A&P 1 and this app is extremely helpful, especially when I don’t feel like bringing my heavy textbooks around. I will be using this app in A&P 2 next semester. I can’t wait. 🙂🙂 Best free app I’ve ever used.

sunm0no ,

The best skeletal anatomy app I’ve ever used!

I originally downloaded this app to study for a human osteoarchaeology class (human remains in archaeological contexts) class, in which we had to be able to identify bones even when fragmented. The ability to select any bone and see it from all angles was super helpful. So was the ability to select multiple bones to see how they articulate and what they look like when fused, especially when that articulation is obscured by other bones (like, for instance, the occipital and sphenoid bones).

I aced the class. That was three years ago, and I still have the app on my phone because I still find it useful. Sometimes I even just play around with it just for fun! I’ve also recommended it to multiple people and they love it too.

This is honestly the best human skeletal anatomy app I’ve ever used, paid or free. The fact that it is free, with NO ADS, blows my mind. Thank you, creators, for a great app.

Ace Y. ,

Great free app for reference model of skeleton

This is probably one of the best (if not, the best) app for reference of a 3D model skeleton. It provides multiple features such as highlighting and pinning certain body parts as well as fading or hiding other body parts if you want to focus on a certain region/area. It also gives you a brief description of each bone part as well. If I had to give some cons...

-It can be a little tricky when trying to rotate the model to look at the skeleton or bone at a certain angle. (I got used to it.)
-It doesn’t label a lot of the parts of each bone (ex: Frontal bone: Coronal suture, supraorbital foramen, etc.)
-When at full zoom at the skeleton/a bone part, the model can look a little blurry.

However, I should say that these cons (for me at least) are VERY MINOR. Most of these cons don’t really bother me but it would be somewhat if they did fix them in an update (especially the second con). But for a FREE app? I’d say this definitely does the job of a providing an accurate model of a skeleton and is definitely worth downloading versus getting those other paid 3D model anatomy apps. I would HIGHLY recommend this app to anyone.

App Privacy

The developer, 3D4Medical from Elsevier, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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