Chart2020 Lite vs Ophthalmology & Optometry
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chart2020 Lite
This app provides a digital eye chart with various testing options, including different chart types and masking features. It offers remote control capabilities via a companion iPhone app or an optional Bluetooth remote, making it suitable for professional and home use.
- Multiple chart types (Sloan/Snellen, Balancing, Astigmatism)
- Customizable testing distance
- Variety of letter/number/symbol sets
- Masking and randomization options
- Companion iPhone app for remote control
- Optional Bluetooth remote control
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Chart Types * Sloan / Snellen Charts * Balancing Charts * Astigmatism Charts Chart Features * Set exact testing testing distance * Quickly switch to near distance testing with distance selector * Letters, Numbers, Kids, E, C, HOTV, 6 Global Fonts * 4 Masking options * Randomize letter set Controllers * Control direct on the iPad * Use the companion iPhone app * See the displayed letters on the iPhone (no neck turning) * Control every feature from the iPhone * Order the Bluetooth Remote Control to control with a 6 button controller Uses * Ophthalmologist and Optometrists * Completely mobile for school testing * Emergency Room * Functional Evaluation Capacity for Companies * Home Use * Students The Chart2020 iPad App comes with a 30 day free trial. After this period you may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you can only use the App for thirty days and then it will expire) • Auto-renewable subscription • 1 month ($29.99) / 1 Year ($199.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. http://chart2020.com/privacy-policy https://www.chart2020.com/terms-of-use
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
Screenshots
Verdict
The clearest difference is review sentiment: Ophthalmology & Optometry at 61% against Chart2020 Lite's 0%. Ophthalmology & Optometry also leads on rating (4.7 vs 1.0) and monetization model (free with in-app purchases vs subscription). Chart2020 Lite's advantage is iOS requirement (12.0 vs 17.1). On price, ads and in-app purchases 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. Chart2020 Lite sells 4 in-app purchases, starting at $7.99 per 7 days and Ophthalmology & Optometry sells 8 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Ophthalmology & Optometry holds the better App Store score, 4.7 against 1.0. 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. Written reviews point the same way: 0% of Chart2020 Lite's written reviews are positive against 61% of Ophthalmology & Optometry's.
Chart2020 Lite ships an update every 3 months, Ophthalmology & Optometry every 4 days. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.
| Parameter | Chart2020 Lite | Ophthalmology & Optometry |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 4.7 (120 ratings) — better |
| Positive reviews | 0.0% of reviews | 60.6% of reviews — better |
| Number of ratings | 1 | 120 — better |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Free with in-app purchases — better |
| Best chart rank | — | #122 — better |
| Devices | iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 12.0 — better | 17.1 |
| Further details — not scored | ||
| Size | 58 MB | 231 MB |
| Age rating | 4+ | 4+ |
| Developer | Shemesh Health Solutions PTY Ltd | My Call Bag LLC |
Customer experience
Chart2020 Lite
Ophthalmology & Optometry
In-app purchases
Chart2020 Lite
- Weekly Subscription3 Days trial$7.997 Days
- Weekly Subscription1 Month trial$7.997 Days
- Monthly Subscription1 Month trial$19.991 Month
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- Yearly Subscription1 Month trial$149.991 Year
Ophthalmology & Optometry
- Monthly Subscription3 Days trial$9.991 Month
- iPad Monthly Subscription$9.991 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
Questions
Is Chart2020 Lite free?
Is Ophthalmology & Optometry free?
Which has better reviews, Chart2020 Lite or Ophthalmology & Optometry?
Do Chart2020 Lite or Ophthalmology & Optometry have ads?
Which is updated more often, Chart2020 Lite or Ophthalmology & Optometry?
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