Eye Handbook vs Exon Map Explorer
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
Exon Map Explorer
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The Exon Map Explorer is an Educational Tool for Understanding Exon Skipping in Duchenne Muscular Dystrophy (DMD).
Screenshots
Verdict
The clearest difference is ads: Exon Map Explorer at none against Eye Handbook's shown. Exon Map Explorer also leads on iOS requirement (12.0 vs 16.0). On price, update cadence, 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.
Eye Handbook ships an update every 3 weeks, Exon Map Explorer every 5 weeks. The most recent releases landed on October 15, 2026 and September 23, 2026 respectively.
| Parameter | Eye Handbook | Exon Map Explorer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) — better | — |
| Positive reviews | 81.1% of reviews | — |
| Number of ratings | 1.2K — better | — |
| Update frequency | Every 3 weeks — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 480 MB | 8 MB |
| Age rating | 17+ | 4+ |
| Developer | Cloud Nine Development LLC | SAREPTA THERAPEUTICS, INC. |
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)
Exon Map Explorer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
Exon Map Explorer
No in-app purchases
Questions
Is Eye Handbook free?
Is Exon Map Explorer free?
Do Eye Handbook or Exon Map Explorer have ads?
Which is updated more often, Eye Handbook or Exon Map Explorer?
Other comparisons
