Eye Chart Pro vs Vision Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eye Chart Pro
This app provides a randomized visual acuity exam, functioning like a projector-based eye chart. It's useful for quick vision screenings, house visits, or when patients may have memorized standard charts. The app offers both Snellen and Tumbling E charts with randomization options.
- Randomizable Snellen Chart
- Randomizable Tumbling E Chart
- Randomize entire chart or line by line
- Smooth interface with animations
- Basic remote control
- Metric / Feet functionality
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**A Top Downloaded Medical App - Over 500,000 Installs** Eye Chart Pro is a clinically-reviewed, randomizable visual acuity exam. It’s remote-controlled, pleasant for patients and providers, and FREE. Similar chart projector functionality usually costs over $1000. Check out the last screenshot to see more information on the clinical reviews in peer-reviewed publications and their conclusions. Useful for: - Triaging - House visits - Patients who have memorized the office chart Features: - Randomizable Snellen Chart - Randomizable Tumbling E Chart - Randomize the whole chart or one line at a time - Smooth interface with animations - Basic remote - Metric / Feet functionality Description: Eye Chart Pro is a generator for randomized Snellen and Tumbling E charts to offer a rough but useful screen of visual acuity. Simply press a button to randomize the entire eye chart, or touch an individual line of the chart to randomize that line. Tap another button to toggle between Snellen and Tumbling E charts. Eye care professionals around the world use Snellen Eye Charts to measure visual acuity. However, patients often memorize the classic Snellen chart, leading to less accurate vision measurements. Enter Eye Chart Pro! Though this unique, notebook sized randomizable eye chart should not be used as a primary visual acuity measuring tool, it can provide a handy rough vision screen when a chart is not available, or it can be used to complement static, wall-based Snellen charts. Eye Chart Pro was made with the best of intentions, and we hope to continue improving it. Your feedback is appreciated! Here is a summary of clinical evaluations we have found: ETDRS Chart on Eye Chart Pro on iPad: “Validation of the visual acuity iPad app Eye Chart Pro compared to the standard Early Treatment Diabetic Retinopathy Study chart in a low-vision population” Journal of Telemedicine and Telecare. Conclusion (summary quote): “The ETDRS chart function on the Eye Chart Pro application can reliably measure VA across a range, from normally sighted patients to those with low vision.” Sloan Chart on Eye Chart Pro on iPad: “The validity of visual acuity assessment using mobile technology devices in the primary care setting.” Australian Family Physician. Conclusion (summary quote): “The high level of agreement of visual acuity results between the Snellen wall chart and both mobile technology devices suggests that clinicians can use this technology with confidence in the primary care setting.” Tumbling E Chart on Eye Chart Pro on iPad: “A Pilot Trial of the Ipad Tablet Computer as a Portable Device for Visual Acuity Testing” Journal of Telemedicine and Telecare. Conclusion (summary quote): “Bland-Altman analysis revealed a mean difference (bias) of 0.02 logMAR units between the VA results from the iPad chart and the light-box chart, with 95% limits of agreement of -0.14 to 0.19.” We are not responsible for the above studies, so please check out the papers above if you have further questions.
Vision Toolbox
This application provides eye care professionals with over 500 digital test screens and images for vision assessment and screening. It offers a comprehensive suite of tools for near vision, distance vision, patient education, and dispensing, all accessible on an iPad.
- Over 500 test screens and images
- Near vision assessment tools
- 3-meter distance vision assessment
- Patient education images and videos
- Digital dispensing tools
- On-screen rulers and protractors
- Eye-related calculation toolkit
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Thomson Software Solutions is the leading provider of software for eye care professionals in Europe and has users all over the world. This application joins a family of software for vision assessment and screening originally devised by Professor David Thomson. Replace all your test types, near charts, near testing units etc. with over 500 test screens and images in one slick application. The Vision Toolbox exploits the superb graphics capabilities of the iPad to provide a huge range of vision assessment tools for eye care professionals (ophthalmologists, optometrists, orthoptists and opticians). Access different tests by simply rotating the iPad and view variations by swiping the screen. Select the test that you want directly by viewing the thumbnail gallery and draw on the screen using your finger. Pan and zoom some of the images or display as a slide show. No eye care professional can afford to be without it! The tools are divided into five categories: Near vision assessment: By holding the iPad at a normal reading distance, The Vision Toolbox can be used to assess a wide range of near vision functions including: - Test types (Adult and children's test types) - LogMAR reading test - LogMAR near charts - Task images (Maps, books, newspaper etc. to ensure the patient can perform these real world tasks) - Binocular vision tests (fixation disparity, binocularity, suppression, stereopsis, 3D red/green anaglyphs) - Duochrome (dots, letters, rings) - Amsler (positive and negative contrast, draw directly on charts and email the results) - Fixation targets (clown, crosses, letters, cartoons) - Miscellaneous (convergence, astigmatism, Maddox rod) 3 metre assessment: View Vision Toolbox from 3 metres and you can assess a wide range of distance vision functions. Handy for home visits, vision screening or testing children. - LogMAR charts - Snellen charts - Single letter charts - Children's visual acuity (Tumbling Es, linear logMAR) - Duochrome (dots, letters, rings) - Cross cylinder (dots and rings) - UK number plate test for driving (actual number plate fonts and correct spacing) - Fixation targets (clown slide show to use during retinoscopy for example) Patient information: Wide range of images to help explain conditions to patients. Select the required image from a thumbnail gallery. Pan and zoom on all images and draw with your finger. - Eye diagrams - Eye disease (photographs of a wide range of anterior segment eye diseases) - Front of the eye (images of the external eye) - Retina (normal and abnormal fundi) - Dispensing images - Videos Dispensing tools: Replace your frame rule with a selection of on-screen rulers, protractors etc. Take advantage of the back-illuminated screen to measure CDs, bifocal heights, varifocals etc. Toolkit: Use the toolkit to perform those tricky eye-related calculations. - Visual acuity (convert between LogMAR, VAR, Snellen metres, Snellen ft, Resolution and Spatial frequency) - LogMAR scorer (help with scoring a LogMAR chart) - Vertex distance calculator - Toric contact lens over-refraction calculator - Transposition calculator
Verdict
The clearest difference is price: Eye Chart Pro at Free against Vision Toolbox's $59.99. Eye Chart Pro also leads on rating (4.0 vs 1.0) and update cadence (every 3 months vs every 34 months). Vision Toolbox's advantage is in-app purchases (none vs 11). On ratings volume, 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
Eye Chart Pro is free to download; Vision Toolbox costs $59.99 up front. Eye Chart Pro sells 11 one-off in-app purchases. Vision Toolbox asks for nothing beyond the download.
Eye Chart Pro holds the better App Store score, 4.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 53% of Eye Chart Pro's written reviews are positive against 38% of Vision Toolbox's.
Eye Chart Pro ships an update every 3 months, Vision Toolbox every 34 months. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.
| Parameter | Eye Chart Pro | Vision Toolbox |
|---|---|---|
| Price | Free — better | $59.99 |
| Rating | 4.0 (2 ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 53.0% of reviews — better | 37.5% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 3 months — better | Every 34 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPad | iPad |
| Requires iOS | 12.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 29 MB | 579 MB |
| Age rating | 4+ | 17+ |
| Developer | Dok LLC | Potters Bar Eye Care Limited |
Customer experience
Eye Chart Pro
Vision Toolbox
In-app purchases
Eye Chart Pro
- Amsler Grid in Portrait and Landscape.$9.99
- Premium Home Edition of Eye Chart Pro$19.99
- HOTV Chart$19.99
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- Sloan Letters Chart$19.99
- ETDRS Chart 1$39.99
- Professional Version with ALL Features$39.99
- Advanced Remote Control$39.99
- All Charts$39.99
- Sloan Duochrome Chart$39.99
- Value Pack$59.99
- Professional Package$199.99
Vision Toolbox
No in-app purchases
Questions
Is Eye Chart Pro free?
Is Vision Toolbox free?
Which has better reviews, Eye Chart Pro or Vision Toolbox?
Do Eye Chart Pro or Vision Toolbox have ads?
Which is updated more often, Eye Chart Pro or Vision Toolbox?
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