Eye Handbook vs Clock Buster
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
Read full descriptionHide full description
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
Clock Buster
This real-time timer streamlines stroke care workflows in emergency settings. It helps medical professionals track critical intervals, calculate stroke scale metrics, and determine medication dosages. Secure live sharing keeps multidisciplinary teams synchronized for faster treatment.
- Real-time stroke code timing
- Optimize acute ischemic stroke workflows
- Minimize door-to-needle times
- Track critical clinical intervals
- Calculate real-time NIHSS stroke scale
- Compute TNK dosing
- Secure live sharing for teams
Read full descriptionHide full description
Clock Buster is an advanced, real-time stroke code timer designed to optimize acute ischemic stroke workflows and drastically minimize door-to-needle times. Built specifically for neurology departments and emergency departments, Clock Buster brings clarity and precision to high-stress acute medical windows.The application streamlines clinical decision-making by integrating essential clinical tracking parameters directly into an active code timeline. Care providers can track critical intervals, calculate real-time NIHSS stroke scale metrics, compute accurate TNK dosing, and instantly cross-verify absolute and relative contraindications. Additionally, built-in secure live sharing allows multiple clinical parties to stay synced simultaneously across devices, keeping the entire multidisciplinary team aligned from door to needle.
Screenshots
Verdict
The clearest difference is ads: Clock Buster at none against Eye Handbook's shown. Clock Buster also leads on rating (5.0 vs 4.8) and monetization model (free vs ad-supported). Eye Handbook's advantage is ratings volume (1.2K vs 6). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.
Clock Buster 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 6, so its average is the more settled of the two.
Eye Handbook ships an update every 3 weeks, Clock Buster every 9 days. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.
| Parameter | Eye Handbook | Clock Buster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 81.1% of reviews | — |
| Number of ratings | 1.2K — better | 6 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 480 MB | 45 MB |
| Age rating | 17+ | 17+ |
| Developer | Cloud Nine Development LLC | Jessica Azevedo Horty |
Customer experience
Eye Handbook
Clock Buster
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)
Clock Buster
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
Clock Buster
No in-app purchases
Questions
Is Eye Handbook free?
Is Clock Buster free?
Which has better reviews, Eye Handbook or Clock Buster?
Do Eye Handbook or Clock Buster have ads?
Which is updated more often, Eye Handbook or Clock Buster?
Other comparisons
