Eye Handbook vs VAS
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
VAS
This tool provides a reliable method for assessing pain levels. It's a free, ad-free application designed for easy access to pain evaluation, ensuring accuracy and validity.
- Reliable pain evaluation
- Simple and free to use
- No advertisements
- Pocket-sized accessibility
- Scientifically evaluated accuracy
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This Visual Analog Scale allows reliable pain evaluation. It's simple, it's free and with no ads ! Now your VAS is always available, right in your pocket ! Accuracy, Validity, and Reliability of an Electronic Visual Analog Scale for Pain on a Touch Screen device has been scientifically evaluated : https://www.ncbi.nlm.nih.gov/pubmed/26769149 Herve Kasparian D.O. and Ghislaine Signoret D.O., two osteopaths in Tonneins (France), are happy to provide this tool to you.
Screenshots
Verdict
The clearest difference is ads: VAS at none against Eye Handbook's shown. VAS also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Eye Handbook's advantage is update cadence (every 2 weeks vs every 22 months) and ratings volume (1.2K vs 1). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
VAS 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 1, so its average is the more settled of the two.
Eye Handbook ships an update every 2 weeks, VAS every 22 months. The most recent releases landed on September 16, 2026 and September 14, 2026 respectively.
| Parameter | Eye Handbook | VAS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 81.1% of reviews | — |
| Number of ratings | 1.2K — better | 1 |
| Update frequency | Every 2 weeks — better | Every 22 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.5 | 9.0 — better |
| Further details — not scored | ||
| Size | 479 MB | 13 MB |
| Age rating | 17+ | 4+ |
| Developer | Cloud Nine Development LLC | Herve Kasparian |
Customer experience
Eye Handbook
VAS
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)
VAS
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
VAS
No in-app purchases
