Eye Handbook vs EOM Sim
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eye Handbook
A comprehensive eye care reference app for ophthalmologists, optometrists, and students. It offers diagnostic tools, treatment references, calculators, educational resources, and community forums to support eye care professionals.
- Diagnostic and treatment reference
- Eye calculators (visual acuity, diabetic retinopathy, etc.)
- Medication and pharmacopeia
- Ophthalmology and optometry journals
- Patient education tools
- Peer-to-peer forums
- Eye atlas and diagrams
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Eye Handbook (EHB) is an eye care reference book and an all-in-one app for Ophthalmologists, Optometrists as well as Students/Residents pursuing the field of eye care. The Eye Handbook is a smartphone diagnostic and treatment reference app for Ophthalmologists and Optometrists. Below is a list of some of the common features. -Eye Calculators -Transposition Calculator -Visual Acuity Calculator -Age to bifocal -Diabetic Retinopathy Severity Calculator -Dry Eye Disease Calculator -Glaucoma Risk Calculator -Thyroid Eye Disease Calculator -Retinoblastoma Calculator -EHB Indirect Camera -Ocular Trauma Score -Plaquenil Dosing -IOP-CCT -Pupillary Distance -DDX -Testing -ICD9 coding -ICD9 to ICD10 converter -ICD10 coding -Audio, Video downloads -Directory -Eye Atlas -Eye Wiki -Peer-to-peer Forums -Connecting with patients -Ophthalmology and Optometry Journals -Medication and Pharmacopeia -Journals -Eye Diagrams -Patient Education tools -RSS Feeds -Acronym List -Dictionary -Eponyms -Genetics -Mnemonics -Workups -Treatment Reference -Vision Symptoms Cards If you have content that you would like to contribute; please contact us at eyehandbook@gmail.com. Please feel free to contact us with any questions you may have. We are constantly striving to improve this application and welcome your feedback. www.eyehandbook.com The Eye Handbook Team
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.
- Realistic 3D eye simulation
- Individual muscle control
- Pupillary response simulation
- Cranial nerve toggles
- Interactive 3D model rotation and zoom
- Joystick eye control
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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
Verdict
The clearest difference is price: Eye Handbook at Free against EOM Sim's $0.99. Eye Handbook also leads on update cadence (every 2 weeks vs every 10 months) and ratings volume (1.2K vs 2). EOM Sim's advantage is ads (none vs shown) and rating (5.0 vs 4.8). On 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
Eye Handbook is free to download; EOM Sim costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EOM Sim holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Eye Handbook has 1.2K ratings behind it against 2, so its average is the more settled of the two.
Eye Handbook ships an update every 2 weeks, EOM Sim every 10 months. The most recent releases landed on October 3, 2026 and September 18, 2026 respectively.
| Parameter | Eye Handbook | EOM Sim |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.8 (1.2K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 81.1% of reviews | — |
| Number of ratings | 1.2K — better | 2 |
| Update frequency | Every 2 weeks — better | Every 10 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Best chart rank | — | #197 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.5 | 9.0 — better |
| Further details — not scored | ||
| Size | 479 MB | 312 MB |
| Age rating | 17+ | 4+ |
| Developer | Cloud Nine Development LLC | Western University of Health Sciences |
Customer experience
Eye Handbook
EOM Sim
Bugs and requests
Eye Handbook
Reported bugs
3 issues- Registration process issues
- Compatibility problems with newer iOS versions
- Incorrect medication information
Requested features
4 requests- Add Tumbling E and Landolt C charts
- Improve search functionality
- Provide a paid ad-free version
- Optimize for larger screens (iPad)
EOM Sim
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
EOM Sim
No in-app purchases
