Eye Chart Pro vs PncImmunization
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.
PncImmunization
This app streamlines the administration of batch immunizations for healthcare providers using a specific electronic health record system. It offers a simple and secure method for managing vaccinations within a clinic setting.
- Batch immunization administration
- Secure and simple interface
- Integration with Point and Click Solutions EHR
- Designed for student health services
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***This app is for any provider at a student health service currently using the Point and Click Solutions Electronic Health Record.*** PncImmunization is the easiest way to administer batch immunizations at your clinic. It's simple and secure. Your IT staff can help you connect PncImmunization to your Point and Click Solutions system today.
Verdict
The clearest difference is rating: PncImmunization at 5.0 against Eye Chart Pro's 4.3. PncImmunization also leads on in-app purchases (none vs 11) and iOS requirement (9.0 vs 12.0). Eye Chart Pro's advantage is ratings volume (3 vs 1). On price, update cadence, 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. Eye Chart Pro sells 11 one-off in-app purchases. PncImmunization asks for nothing beyond the download.
PncImmunization holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
Eye Chart Pro ships an update every 3 months, PncImmunization every 5 months. The most recent releases landed on October 23, 2026 and October 26, 2026 respectively.
| Parameter | Eye Chart Pro | PncImmunization |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 53.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPad | iPad |
| Requires iOS | 12.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Dok LLC | Point and Click Solutions, Inc. |
Customer experience
Eye Chart Pro
PncImmunization
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
PncImmunization
No in-app purchases








