Chart2020 Connect vs K
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chart2020 Connect
Read full descriptionHide full description
Chart2020® CONNECT is a professional-grade vision testing solution with CONNECT Personalities: 1. iPad optimized profession-grade vision tests; 2. Controller for Chart2020 CHART2020 CONTROLLER PERSONALITY: CONNECT is a controller for Chart2020, the premier visual acuity and ocular performance platform, utilizing gestures and one-touch, hiding “docks” -> Wirelessly, synchronously manages Chart2020 functions -> One-button access to extensive library of tests (no more FUNC / CTRL / F# key combination memorization) -> Provide private views of eye test content / answers (stereo acuity, contrast sensitivity, (e)ETDRS) -> Adds patient entry fields with iPad simplicity to add and manage patients for “Wizard-driven” tests, test administration, and reports management -> Live view of patient monitor -> Intuitive icons used across both platforms -> Intuitive gestures for acuity chart “Intelligent” letter randomization, multiple types of masking / isolation / crowding, as wells as navigation through your test sequences -> Display of distance media (images, movies, education, marketing) -> Synchronous drag and drop of test sequence tests -> Use in multiple exam rooms with unique identities -> Selective display of rich variety of LogMAR, Sloan compliant optotypes (Tumbling E and C, Low vision, HOTV, Sloan Numbers, Japanese, Korean, Arabic, Russian, Hebrew, Greek)
K
This application helps clinicians monitor and track the progression of Age-Related Macular Degeneration (AMD). It can be used by patients for home screening, with results remotely monitored by clinical staff. Early detection of wet AMD is crucial for timely treatment.
- Monitor AMD progression
- Track dry to wet AMD
- Home screening tool
- Remote monitoring by clinicians
- Early detection of wet AMD
Read full descriptionHide full description
King-Devick Variable Color Contrast Sensitivity Chart is an iPad/iPhone-based product application that allows clinicians to monitor and track the progression of Age-Related Macular Degeneration (AMD) from non-exudative (dry) AMD to exudative (wet) AMD. It is critical to know when exudative (wet) AMD begins to occur so the treatment with a-VEGF injections can begin. King-Devick Variable Color Contrast Sensitivity Chart has been proven to be a helpful tool in detecting progression of disease in Age-Related Macular Degeneration. King-Devick Variable Contrast Sensitivity Chart can be used by the patient as a simple home-screening tool monitored by clinician’s staff remotely or in-office screening. Our Terms of Use are available here https://kingdevicktest.com/terms-of-service/
Screenshots
Verdict
The clearest difference is update cadence: Chart2020 Connect at fortnightly against K's every 32 months. K's advantage is device support (3 vs 1). On price, ads, in-app purchases 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. Chart2020 Connect sells 4 one-off in-app purchases and K sells 1 in-app purchase, starting at $51.99 per year. Whichever you choose, the download price is not the number that matters.
Chart2020 Connect ships an update fortnightly, K every 32 months. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.
| Parameter | Chart2020 Connect | K |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Fortnightly — better | Every 32 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 8.0 | 8.0 |
| Further details — not scored | ||
| Size | 62 MB | 64 MB |
| Age rating | 4+ | 12+ |
| Developer | Shemesh Health Solutions PTY Ltd | King-Devick Test, LLC |
In-app purchases
Chart2020 Connect
- 10 emails$9.99
- 25 emails$21.99
- 50 emails$44.99
Show 1 moreShow fewer
- 100 emails$84.99
K
- Annual Subscription$51.991 Year









