Eye Charts vs eETDRS Visual Acuity Test
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eye Charts
Measure and track distant vision with optically precise optotypes. Supports various eye chart types and custom test distances. Useful for early detection of vision issues and monitoring progression.
- Optically precise optotypes
- Multiple eye chart types (Snellen, Tumbling E, Landolt C, ETDRS, HOTV, Numbers, Shapes)
- Customizable test distances (meters and feet)
- Mirror and Bluetooth keyboard testing modes
- Manual and auto-scoring test modes
- Visual acuity progression tracking
- LogMAR scoring
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Eye Charts is a vision testing app independently proven most accurate in a peer-reviewed study (JAMA Ophthalmology). Trusted by parents and clinicians to check, record, and track children's vision since 2018. Early detection of myopia allows you to take preventive action, seek medical advice promptly, and prevent pseudomyopia from worsening into myopia or stop nearsightedness from deteriorating further. INDEPENDENTLY EVALUATED ACCURACY Eye Charts was previously published as Visual Acuity Charts and was independently evaluated in a peer-reviewed study published in JAMA Ophthalmology (https://pmc.ncbi.nlm.nih.gov/articles/PMC7809609/). MORE THAN A DIGITAL EYE CHART Unlike paper charts that can fade, warp, or become memorized, Eye Charts presents randomized optotypes for each test. This helps reduce variability when repeating measurements over time. Choose from: • Snellen • ETDRS • Landolt C • Tumbling E • HOTV • Numbers • Shapes Charts use LogMAR-based sizing and support multiple visual acuity notations, including: • Fraction • LogMAR • MAR • Decimal • VAS FLEXIBLE TESTING Test at different distances to suit small rooms, hallways, clinics, schools, or other available spaces. Eye Charts is self-illuminated on iPhone and iPad, so chart visibility is less dependent on ambient room lighting. Screen brightness can be adjusted, including for longer testing distances such as 6 metres. THREE WAYS TO TEST 1. Doctor and patient — in a clinic or at home 2. Self-test with a mirror — wear an eye patch; the effective testing distance is doubled 3. Self-test with a Bluetooth keyboard — from a few meters away SEE TRENDS, NOT JUST SNAPSHOTS Record test results for individual subjects and visualize changes over time with simple graphs. This makes it easier to notice: • Gradual changes in visual acuity • Stability following an intervention • Differences between visits or repeated tests For parents, this provides a convenient way to monitor a child's visual acuity over time. For healthcare professionals, it provides a practical record for routine screening and follow-up. IMPORTANT MEDICAL NOTICE Eye Charts is a visual acuity screening and measurement tool. It does not replace an examination by an optometrist or ophthalmologist. It does not diagnose eye conditions such as strabismus, esotropia, exotropia, hyperopia, or astigmatism. Regular professional eye examinations are recommended, and you should seek professional medical advice if you notice changes in vision.
eETDRS Visual Acuity Test
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eETDRS Remote Visual Acuity Testing app for X06 study.
Screenshots
Verdict
The clearest difference is price: eETDRS Visual Acuity Test at Free against Eye Charts's $4.99. eETDRS Visual Acuity Test also leads on iOS requirement (12.0 vs 14.0). On update cadence, ads, in-app purchases 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
eETDRS Visual Acuity Test is free to download; Eye Charts costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on September 22, 2026 and September 10, 2026 respectively.
| Parameter | Eye Charts | eETDRS Visual Acuity Test |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.5 (29 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 29 — better | — |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 23 MB | 36 MB |
| Age rating | 12+ | 17+ |
| Developer | zijian huang | Rino Enterprises LLC |
In-app purchases
Eye Charts
No in-app purchases
eETDRS Visual Acuity Test
No in-app purchases
Questions
Is Eye Charts free?
Is eETDRS Visual Acuity Test free?
Do Eye Charts or eETDRS Visual Acuity Test have ads?
Which is updated more often, Eye Charts or eETDRS Visual Acuity Test?
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