Eye Handbook vs Opto
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
Opto
This application allows users to visually study the pupil and iris with enhanced clarity. It offers a patented method for determining pupil roundness through direct examination and two levels of quantification. Ideal for anyone interested in external eye study.
- Visualize pupil and iris
- Clearer eye view than naked eye
- Determine pupil roundness
- Patented quantification method
- External eye study tool
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Visual Intelligence, LLC, Opto-Screen is a unique App for visualizing the pupil and the iris. It can be used by anyone that is interested in studying a person’s eye externally. The Opto-Screen view of the pupil and the iris is much clearer than the naked eye. Opto-Screen also allows users to determine if the pupil is round by direct examination and through two levels of quantification with a Patented method.
Screenshots
Verdict
The clearest difference is rating: Eye Handbook at 4.8 against Opto's 3.0. Eye Handbook also leads on in-app purchases (none vs 2) and review sentiment (82% vs 50%). Opto's advantage is ads (none vs shown) and iOS requirement (12.1 vs 16.0). On price 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
Both are free to download. Opto sells 2 in-app purchases, starting at $34.99 per month. Eye Handbook asks for nothing beyond the download.
Eye Handbook holds the better App Store score, 4.8 against 3.0. 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. Written reviews point the same way: 82% of Eye Handbook's written reviews are positive against 50% of Opto's.
| Parameter | Eye Handbook | Opto |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 82.2% of reviews — better | 50.0% of reviews |
| Number of ratings | 1.2K — better | 2 |
| Update frequency | Every 3 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.1 — better |
| Further details — not scored | ||
| Size | 480 MB | 15 MB |
| Age rating | 17+ | 4+ |
| Developer | Cloud Nine Development LLC | Visual Intelligence, LLC |
Customer experience
Eye Handbook
Opto
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)
Opto
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
Opto
- Opto-Screen Monthly Access1 Month trial$34.991 Month
- Opto-Screen Annual Plan1 Month trial$349.991 Year
