Comparison

3D Bones and Muscles (Anatomy) vs Tech Aide

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

Head to head
About

3D Bones and Muscles (Anatomy)

Explore the human body in a fully interactive 3D environment. This free application allows for detailed study of bones, muscles, and organs with features like virtual dissection and location quizzes. Supports multiple languages and audio pronunciation for anatomical terms.

Highlights
  • Interactive 3D models
  • Virtual dissection
  • Location quizzes
  • Switchable anatomy systems
  • Load and save views
  • Audio pronunciation
Features
Read full description

A true and totally 3D free app for studying human anatomy, built on an advanced interactive 3D touch interface. It is completely free (NO in-app purchase)! ***From the creator of Visual Anatomy app. Features: - You can rotate models to any angle and zoom in and out
 - Easy to navigate and explore human body
 - Virtual dissection: Peel layers of muscles and reveal the anatomical structures below them.
 - 3D location quizzes to test your knowledge
 - Switch on/off different anatomy systems 
- Load and Save Views ( bookmaker function )
 - Both male and female reproductive systems are available 
- Latin name - Support French, Spanish and German languages! - Audio pronunciation for all bone names Contents: - 3D Skeleton (all bones in our body)
 - 3D Ligaments - 3D Muscles (145 muscles, highly detailed muscle models) - 3D Respiratory system
 - Circulation (heart) 
- Nervous System (brain)
 - 3D Reproductive system (male and Female) 
- 3D Urinary system - 3D ear

About

Tech Aide

Provides radiologic technologists with quick, practical information for over 170 radiographic views. Features include detailed positioning guidance, custom equipment profiles, and credential tracking for professional requirements.

Highlights
  • 170+ radiographic views
  • Positioning guidance
  • Custom equipment profiles
  • Credential tracking
  • CE tracking
  • Document vault
Read full description

Tech Aide brings radiographic references, everyday workflow tools, and professional tracking together in one app built specifically for rad techs. Access complete radiographic views, organize the way you work, and keep your credentials, continuing education, and documents close at hand. EXPLORE THE ATLAS Get free access to 170+ radiographic views across seven anatomy categories, with licensed reference images available for most views. Find your view by searching anatomy, view names, common abbreviations, or aliases. Each reference organizes the details you need for quick review, including: • Patient and part positioning • Central ray, SID, and collimation • Image receptor information • Breathing instructions • Image evaluation criteria • Common positioning errors • Marker placement • Adult and pediatric Quick Technique references, where applicable WORK MORE EFFICIENTLY WITH TECH AIDE PRO An optional monthly or annual subscription adds tools to personalize your workflow and keep your professional requirements organized. SAVE WHAT MATTERS Keep frequently used views and routines close at hand with Favorites. Spend less time searching for the references you return to most. CUSTOMIZE YOUR WORKFLOW Choose from 42 preset routines or build your own. Group views around the exams you perform and arrange them in the order that works for you. PERSONALIZE YOUR TECHNIQUE Create Equipment Profiles for the rooms and portable systems you use. Save your own adult and pediatric techniques by equipment, with preferred settings and notes organized alongside your Atlas references. WELCOME TO WAYPOINT Bring your licenses, certifications, continuing education, and supporting documents together in one place. Track credential expiration dates and review your renewal progress with clear status indicators. TRACK EVERY CREDIT Log CE activities and link them to the credentials they support. Keep certificates and other professional documents organized in your Vault, so your records are easy to find when you need them. Designed for quick reference, with a dark interface suited to low-light clinical environments. Tech Aide. Radiography Optimized. Terms of Use (EULA): [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)

Screenshots

3D Bones and Muscles (Anatomy)4 screens
Tech Aide4 screens

Verdict

The call

The clearest difference is in-app purchases: 3D Bones and Muscles (Anatomy) at none against Tech Aide's 2. 3D Bones and Muscles (Anatomy) also leads on ratings volume (2.6K vs 3) and device support (4 vs 2). Tech Aide's advantage is ads (none vs shown) and update cadence (weekly vs every 6 months). On price and monetization model 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

Both are free to download. Tech Aide sells 2 in-app purchases, starting at $4.99 per month. 3D Bones and Muscles (Anatomy) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Tech Aide holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: 3D Bones and Muscles (Anatomy) has 2.6K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 91% of 3D Bones and Muscles (Anatomy)'s written reviews are positive against 100% of Tech Aide's.

UpkeepUpdate frequency

3D Bones and Muscles (Anatomy) ships an update every 6 months, Tech Aide weekly. The most recent releases landed on November 11, 2026 and October 31, 2026 respectively.

Scorecard8 real differences · 2 level
3D Bones and Muscles (Anatomy) versus Tech Aide: the parameters behind the verdict, then further details
Parameter3D Bones and Muscles (Anatomy)Tech Aide
PriceFreeFree
Rating4.7 (2.6K ratings)5.0 (3 ratings) — better
Positive reviews91.1% of reviews100.0% of reviews — better
Number of ratings2.6K — better3
Update frequencyEvery 6 monthsWeekly — better
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size98 MB154 MB
Age rating12+4+
DeveloperEducation MobileNICHOLAS GREGORY CALLAHAN

Customer experience

3D Bones and Muscles (Anatomy)

All ratings2,565 ratings
Positive94.6%
Neutral3.1%
Negative2.3%
Written reviews682 reviews
Positive91.1%
Neutral4.7%
Negative4.3%

Tech Aide

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

3D Bones and Muscles (Anatomy)

Reported bugs

3 issues
  • Incorrect muscle/bone origin and insertion information
  • Difficulty isolating individual muscles
  • Crashes or freezes on some devices

Requested features

4 requests
  • Add more body systems (e.g. nervous system, lymphatic system)
  • Improve navigation and controls for the 3D model
  • Expand quiz/test functionality
  • Add more detailed labeling and information

Tech Aide

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

3D Bones and Muscles (Anatomy)

No in-app purchases

2 purchases

Tech Aide

Subscriptions2
  • Tech Aide Pro - Monthly7 Days trial$4.991 Month
  • Tech Aide Pro - Annual7 Days trial$44.991 Year

Questions

Is 3D Bones and Muscles (Anatomy) free?
3D Bones and Muscles (Anatomy) is free to download, with no in-app purchases.
Is Tech Aide free?
Tech Aide is free to download, with in-app purchases available.
Which has better reviews, 3D Bones and Muscles (Anatomy) or Tech Aide?
Tech Aide is rated higher. 3D Bones and Muscles (Anatomy) averages 4.7 out of 5 from 2.6K ratings, while Tech Aide averages 5.0 from 3 ratings.
Do 3D Bones and Muscles (Anatomy) or Tech Aide have ads?
3D Bones and Muscles (Anatomy) shows ads; Tech Aide does not.
Which is updated more often, 3D Bones and Muscles (Anatomy) or Tech Aide?
3D Bones and Muscles (Anatomy) ships an update every 6 months, and Tech Aide weekly. Most recently, 3D Bones and Muscles (Anatomy) was updated on November 11, 2026 and Tech Aide on October 31, 2026.

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