Eye Handbook vs WikEM
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
WikEM
This app provides a continuously updated wiki and database of emergency medicine knowledge for physicians. Access key information offline for rapid reference during daily practice. An in-app subscription unlocks advanced AI-powered questions, favorites, and history features.
- Emergency medicine knowledge database
- Continuously updated content
- Offline access
- AI-powered questions (subscription)
- Favorites and history (subscription)
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WikEM is an online wiki and database of emergency medicine knowledge to assist physicians with their daily practice. The content is continuously updated from WikEM.org allowing for rapid reference of key information. The content is available offline with this mobile application. WikEM is intended for clinicians only and not directly for patients. In app subscription purchases: *The in-app purchase unlocks unlimited natural language questions using our AI and also favorites and history features • Payment will be charged to 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 • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable WikEM terms of use: wikem.org/wiki/WikEM:Terms_of_Use
Screenshots
Verdict
The clearest difference is in-app purchases: Eye Handbook at none against WikEM's 10. Eye Handbook also leads on review sentiment (82% vs 54%). WikEM's advantage is ads (none vs shown) and update cadence (every 5 days vs every 3 weeks). On price, rating, device support and iOS requirement 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. WikEM sells 10 in-app purchases, starting at $1.99 per month. Eye Handbook asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.8 for Eye Handbook against 4.8 for WikEM. Both are backed by a comparable volume of ratings — 1.2K and 4.8K respectively. Written reviews are what separate them: 82% of Eye Handbook's written reviews are positive against 54% of WikEM's.
Eye Handbook ships an update every 3 weeks, WikEM every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Eye Handbook | WikEM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) — better | 4.8 (4.8K ratings) |
| Positive reviews | 82.2% of reviews — better | 54.1% of reviews |
| Number of ratings | 1.2K | 4.8K — better |
| Update frequency | Every 3 weeks | Every 5 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 480 MB | 167 MB |
| Age rating | 17+ | 17+ |
| Developer | Cloud Nine Development LLC | OpenEM Foundation |
Customer experience
Eye Handbook
WikEM
User reviews
Eye Handbook
From 1.2K App Store ratingsWhat we love
- 👍 Useful information and tools
- 🚀 Comprehensive and efficient
- 💡 Great resource for eye care professionals
- 😊 Excellent app overall
Room to improve
- 🐛 Crashes and bugs
- 📢 Intrusive ads and pop-ups
- 🔍 Poorly organized interface
- 🔋 High battery consumption
WikEM
From 4.8K App Store ratingsWhat we love
- 💡 Useful and concise information
- 🚀 Great resource for quick reference
- 👍 Helpful for medical professionals
Room to improve
- 🐛 Frequent login and account issues
- 🐛 App crashes and database loading problems
- 🐛 Compatibility issues with newer devices
- 🔋 High battery consumption
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)
WikEM
Reported bugs
4 issues- Login screen freezes
- Incompatible with older devices
- Broken hyperlinks and charts
- Search function not working as expected
Requested features
4 requests- Dark mode support
- Ability to save favorites and customize the app
- Improved search functionality
- Regular content updates
In-app purchases
Eye Handbook
No in-app purchases
WikEM
- WikEM AI Search$1.991 Month
- Premium Features$4.991 Year
- Personal Notes$0.99
- Favorites and Lists$5.99
- History and Favorites$9.99
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- WikEM Russian Content$29.99
- WikEM Italian Content$29.99
- WikEM Polish Content$29.99
- WikEM Hindi Content$29.99
- WikEM Turkish Content$29.99









