Ophthalmology & Optometry vs Embllm
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ophthalmology & Optometry
This app transforms your iPhone into a comprehensive digital call bag for healthcare professionals. It offers a wide array of specialized tools for ophthalmology, neurology, optometry, emergency medicine, and internal medicine, leveraging advanced iPhone camera and sensor technology.
- Ophthalmology diagnostic tools
- Neurology screening tools
- Optometry vision tests
- Emergency medicine aids
- Internal medicine calculators
- LiDAR exophthalmometer
- AI Lensometer
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Designed for healthcare professionals, this app transforms your iPhone into a comprehensive digital call bag, utilizing the True Depth Camera, gyroscope, and accelerometer. Ophthalmology Tools • Distance vision chart with Apple Watch remote • LiDAR exophthalmometer • AI Lensometer • Topography with Placido Disc • Visual field tool with automated perimetry • Refraction Tool for Rough Bedside Refraction • Pediatric, Tumbling E, and Landolt C optotypes • Ullman Indirect' for fundus photography • Astigmatism Dial stabilized with gyroscope mode • Ishihara, Cambridge, and Pediatric color tests • Axis Finder for toric IOL marking • Strabismus selfie tool • IOL spec sheets • Cornea and retina drawing tools • Slit lamp photography tool • Eye Disease Simulator • Hirschberg strabismus tool • Ptosis MRD measurement tool • IOL simulator • DMEK & Capsulorhexis simulator • 3D Model of eye & orbit Neurology Tools • Vestibular Ocular Motor Screening • Penlight tool with video recording • OKN Drum with adjustable stripes • Near card calibrated with True Depth Camera • Subjective Visual Vertical (SVV) • Dermatome Map • Tuning Fork • NIH Stroke Scale • Navon Figures • Clock Drawing Test • Spiral Drawing Test Optometry Tools • Pupillary distance measurement • Crowding bars in single optotype mode • Amsler Grids with scotoma drawing and recording • Duochrome Test for refractive error assessment • Contrast Sensitivity Chart • Worth 4 Dot Test with pediatric targets • Anisometropia tool • Near point of accommodation measurement using True Depth Camera Emergency Medicine Tools • Vein finder tool • Cobalt Blue Light for corneal abrasion checks • Pupil gauge for measuring pupil size • Goniometer for joint range of motion measurement • Ophthalmic instrument spec sheets Internal Medicine Tools • Measure heart rate with camera • Calculators: - Calcium Correction for Hypoalbuminemia - CHADS-VASC Score for Atrial Fibrillation Stroke Risk - CKD-EPI Equations for Glomerular Filtration Rate (GFR)Mean Arterial Pressure (MAP) - Cockcroft-Gault Calculator - Creatinine Clearance - IOP corrected by pachymetry - Bifocal/Near Add Calculator - Amplitude of Accommodation Calculator - Thyroid Eye Disease (TED) Clinical Activity Score (CAS) Calculator - Spaeth Angle Grading Calculator - Scheie Angle Grading Calculator - Shaffer Grading Calculator - Parks-Bielschowsky 3 Step Test - Vertex Distance Calculator - Percent Tissue Altered LASIK Ectasia Risk Calculator - Randleman Post-LASIK Ectasia Risk Calculator - Body Mass Index (BMI) Calculator - Ocular Trauma Score Calculator - OHTS Glaucoma Calculator - Martin's Tilt Formula Calculator - Reese-Ellsworth Retinoblastoma Classification System - Munnerlyn Formula Calculator (Ablation Depth Calculator) - IOL Bag vs Sulcus Power Calculator - Glasgow Coma Scale (GCS) Calculator - Pediatric Glasgow Coma Scale Calculator - Wells' Criteria for DVT Calculator - Maintenance Fluids Calculator - Corrected QT Interval (QTc) Calculator - Wells' Criteria for PE - Intracerebral Hemorrhage (ICH) Score Calculator - Intracerebral Hemorrhage (ICH) Score Calculator - Steroid Conversion Calculator ...and many more! Customize Your Call Bag • Select favorite tools • Presets for various subspecialties • Metric and imperial system mode No invasive advertisements! No data collection! *Formerly called the "Eye Chart App" Disclaimer: This app is intended as an educational tool for healthcare professionals and should not replace traditional methods. It is not for self-diagnosis or treatment without professional guidance. This app is NOT intended for diagnosis, cure, mitigation, treatment, or prevention of disease, nor to affect the structure or any function of the body.* *iPad "Eye Chart" app now available separately that can test distance vision, this app can be run on the iPad but is not specifically formatted for iPad screens** Terms of Service: http://MyCallBag.com/terms.html
Embllm
This app provides healthcare professionals with engaging multiple-choice questions derived from medical literature. Earn CME credits, access primary literature, and track your progress across diverse specialties. It offers a personalized and user-friendly learning experience on your mobile devices.
- Earn CME credits
- Quizzes from medical literature
- Diverse medical specialties
- Access primary literature
- Personalized learning paths
- Progress tracking analytics
- User-friendly interface
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Embllm: Medical Learning and CME Explore questions based on published medical research, follow links to the original literature, and track your learning progress. Build quizzes around your specialty and areas of interest. Learning features include: • Research-based multiple-choice questions • Links to primary literature • Specialty and topic selection • Quiz history, progress, and leaderboards Free learning is available without a subscription. An optional CME Membership provides access to CME claims for eligible completed learning activities, subject to the accreditation information and requirements shown in the app. Membership is available as a monthly or annual auto-renewing subscription through Apple. The price and billing period are shown before purchase. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple Account settings. Restore purchases from the Membership screen. You can delete your account in Account, including before completing onboarding. Deleting an account does not cancel an Apple subscription; manage that subscription separately in your Apple Account settings. Privacy Policy: https://www.embllm.com/privacy-statement Terms of Use: https://www.embllm.com/terms-of-use
Screenshots
Verdict
The clearest difference is in-app purchases: Embllm at none against Ophthalmology & Optometry's 8. Embllm also leads on rating (5.0 vs 4.7) and iOS requirement (15.1 vs 17.1). Ophthalmology & Optometry's advantage is ratings volume (120 vs 1) and update cadence (every 4 days vs every 3 weeks). On price, ads 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. Ophthalmology & Optometry sells 8 in-app purchases, starting at $9.99 per month. Embllm asks for nothing beyond the download.
Embllm holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Ophthalmology & Optometry has 120 ratings behind it against 1, so its average is the more settled of the two.
Ophthalmology & Optometry ships an update every 4 days, Embllm every 3 weeks. The most recent releases landed on September 28, 2026 and September 27, 2026 respectively.
| Parameter | Ophthalmology & Optometry | Embllm |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (120 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 60.6% of reviews | — |
| Number of ratings | 120 — better | 1 |
| Update frequency | Every 4 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Requires iOS | 17.1 | 15.1 — better |
| Further details — not scored | ||
| Size | 231 MB | 33 MB |
| Age rating | 4+ | 17+ |
| Developer | My Call Bag LLC | Embllm, LLC |
Customer experience
Ophthalmology & Optometry
Embllm
In-app purchases
Ophthalmology & Optometry
- iPad Monthly Subscription$9.991 Month
- Monthly Subscription3 Days trial$14.991 Month
- Annual Subscription to iPad App7 Days trial$49.991 Year
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- Annual Subscription3 Days trial$49.991 Year
- 100 Credits$3.99
- 500 Credits$19.99
- Lifetime Access to iPad App$149.99
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- My Call Bag$249.99
Embllm
No in-app purchases








