Comparison

The Wills Eye Manual vs EOM Sim

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

Head to head
About

The Wills Eye Manual

This pocket guide offers expert diagnosis and treatment tips for over 200 ophthalmic conditions. It features high-quality images, step-by-step protocols, and quick-reference tables, making it ideal for eye care professionals and trainees.

Highlights
  • 200+ ophthalmic conditions
  • Expert diagnosis and treatment tips
  • High-quality images
  • Step-by-step protocols
  • Quick-reference tables
  • Expanded video library
Features
Read full description

"Try before you buy" - Download the FREE App, which includes sample content. In-App purchase required to unlock all content. The Wills Eye Manual®, 9th Edition is the ultimate pocket guide for eye care! Packed with expert diagnosis and treatment tips, high-quality images, and step-by-step protocols, it’s perfect for ophthalmologists, optometrists, and trainees. Quick-reference tables and online videos make mastering eye emergencies easy—your go-to resource for confident patient care! For more than 35 years, The Wills Eye Manual, originally edited by Drs. Christopher J. Rapuano and Mark A. Friedberg, has remained a best-selling source of authoritative guidance on treating ocular disorders in an office, emergency room, or hospital setting. Offering information on more than 200 ophthalmic conditions, effective recommendations from initial workup and diagnosis through extended treatment, and a concise outline format designed for portability and quick reference, the ninth edition of this trusted manual is a comprehensive, high-yield resource for both trainees and seasoned practitioners. - Provides current, superbly illustrated information on 200+ ophthalmic conditions in a handy, portable manual, along with extensive multimedia content - Offers easily accessible clinical recommendations for evaluation, diagnosis, workup, and treatment - Addresses changing trends in oculoplastics, glaucoma, cornea, pediatrics, neuro-ophthalmology, uveitis, retina, and more - Includes an expanded video library covering a wide range of common procedures with step-by-step narration, carefully selected to complement key techniques - Contains up-to-date content from cover to cover, with all chapters written and edited by the residents and attending ophthalmologists at one of the busiest and largest eye hospitals in the country Content licensed from printed ISBN 13: 9781975243722 Content licensed from printed ISBN 10: 1975243722 SUBSCRIPTION : Please purchase a yearly auto-renewing subscription to receive content access and continuous updates. Your subscription automatically renews every year, so you always have the latest content. Yearly auto-renewing payments- $94.99 Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Subscription may be managed by the user and auto-renewal can be disabled at any time by going to your device “Settings” and tapping “iTunes & App Store”. Any unused portion of a free trial period will be forfeited when you purchase a subscription, where applicable." If you have any questions or comments, email us any time: customersupport@skyscape.com or call 508-299-3000 Privacy Policy - https://www.skyscape.com/terms-of-service/privacypolicy.aspx Terms and Conditions - https://www.skyscape.com/terms-of-service/licenseagreement.aspx Author(s): Christopher J. RAPUANO Publisher: Lippincott Williams & Wilkins

About

EOM Sim

Explore the intricate mechanics of eye movement with a realistic 3D simulation. Observe and control individual eye muscles to understand their impact on ocular rotation. This app serves as an interactive educational tool for medical students and the curious.

Highlights
  • Realistic 3D eye simulation
  • Individual muscle control
  • Pupillary response simulation
  • Cranial nerve toggles
  • Interactive 3D model rotation and zoom
  • Joystick eye control
Features
Read full description

WesternU’s CETL team presents EOM Sim, a realistic 3D eye simulator that shows the movement of the extraocular muscles of the eye. The movement of the human eye is one of the most complex actions in the body, with multiple muscles working in conjunction to make the eye rotate. With EOM Sim, you can observe and control each of these muscles individually and learn how each of them affects eye movement. Useful as both a teaching tool and a study tool, EOM Sim is designed to help medical students (or anyone who is curious about how their eyes work) learn about eye movement using a 3D simulation rather than text. Now in Version 2: Pupillary response and fully 3D eye muscle rendering! How To Use: Simply touch the screen and the eyes will follow your finger. Use the sliders on the side of the screen to weaken individual muscles and simulate different conditions. By swiping left or right, you can find toggles to disable different cranial nerves. To access the pupil mode, use the flashlight button on the bottom. To view the 3D eye model, use the leftmost button on the bottom bar. You can rotate and zoom in this mode, and you can control where the eyes look using the joystick controller to the right. You can also interact with individual muscles to further see how each works. EOM Sim is still in active development, and we are always looking for feedback and suggestions! Contact: gamesupport@westernu.edu

Screenshots

The Wills Eye Manual4 screens
EOM Sim4 screens

Verdict

The call

The clearest difference is price: The Wills Eye Manual at Free against EOM Sim's $0.99. The Wills Eye Manual also leads on ratings volume (126 vs 2). EOM Sim's advantage is in-app purchases (none vs 8) and ads (none vs shown). On update cadence 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

The Wills Eye Manual is free to download; EOM Sim costs $0.99 up front. The Wills Eye Manual sells 8 in-app purchases, starting at $48.99 per 3 months. EOM Sim asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EOM Sim holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: The Wills Eye Manual has 126 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

The Wills Eye Manual ships an update every 5 months, EOM Sim every 10 months. The most recent releases landed on October 24, 2026 and October 6, 2026 respectively.

Scorecard7 real differences · 3 level
The Wills Eye Manual versus EOM Sim: the parameters behind the verdict, then further details
ParameterThe Wills Eye ManualEOM Sim
PriceFree — better$0.99
Rating4.7 (126 ratings)5.0 (2 ratings) — better
Positive reviews60.0% of reviews—
Number of ratings126 — better2
Update frequencyEvery 5 months — betterEvery 10 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS13.09.0 — better
Further details — not scored
Size47 MB312 MB
Age rating17+4+
DeveloperSkyscape Medpresso IncWestern University of Health Sciences

Customer experience

The Wills Eye Manual

All ratings126 ratings
Positive92.1%
Neutral3.2%
Negative4.8%
Written reviews5 reviews
Positive60.0%
Neutral20.0%
Negative20.0%

EOM Sim

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

8 purchases

The Wills Eye Manual

Subscriptions7
  • The Wills Eye Manual 3M Sub$48.993 Months
  • The Wills Eye Manual 6M Sub$63.996 Months
  • 25% off-Wills Eye Manual 1YSub$71.991 Year
Show 4 more
  • Wills Eye Manual 1Y offer Sub$75.991 Year
  • 20% off-Wills Eye Manual 1YSub$75.991 Year
  • 15% off-Wills Eye Manual 1YSub$80.991 Year
  • The Wills Eye Manual 1Y Sub$94.991 Year
One-time1
  • The Wills Eye Manual Ed.8$99.99
None

EOM Sim

No in-app purchases

Questions

Is The Wills Eye Manual free?
The Wills Eye Manual is free to download, with in-app purchases available.
Is EOM Sim free?
EOM Sim costs $0.99, with no in-app purchases.
Which has better reviews, The Wills Eye Manual or EOM Sim?
EOM Sim is rated higher. The Wills Eye Manual averages 4.7 out of 5 from 126 ratings, while EOM Sim averages 5.0 from 2 ratings.
Do The Wills Eye Manual or EOM Sim have ads?
The Wills Eye Manual shows ads; EOM Sim does not.
Which is updated more often, The Wills Eye Manual or EOM Sim?
The Wills Eye Manual ships an update every 5 months, and EOM Sim every 10 months. Most recently, The Wills Eye Manual was updated on October 24, 2026 and EOM Sim on October 6, 2026.

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