VisionC (ETDRS Visual Acuity) vs Oftalmo Escalas
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VisionC (ETDRS Visual Acuity)
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VisionC is the first ETDRS chart completely configurable to be presented at any distance from 20 cm to 400 cm (1 cm step) and for any Contrast from 0 to 100% (1% step). It is the only one that allows you to control de luminance of the background and the optotype with a low-cost external luminance meter. You can use PicoDisplay App and Pico (Palette) device for this purpose. The visual acuity with the ETDRS is usually measured at three distances (far, intermediate and near) but research studies sometimes differ in the specific distance for each one of the categories. With VisionC you can select the specific distance for each one of these three configurations in such a way you can rapidly access to the specific distance you desire. The App comes with a different set of letters in order to avoid memorization. Therefore either letters for distance, intermediate and near or right, left and both eyes differ to prevent memorization. You can join our community in order to ask any question or to receive support: www.facebook.com/groups/qvisionacademy/
Oftalmo Escalas
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Oftalmo Escalas brings the main ophthalmology scales and classifications into one fast, offline app organized by subspecialty. 60 scales across 11 areas: glaucoma, cataract, cornea & refractive, retina, AMD, uveitis, strabismus, oculoplastics, neuro-ophthalmology, ocular oncology and trauma. • Interactive scales with automatic staging (Shaffer, LOCS III, ICDR, ICROP3, SUN, Belin ABCD, Randleman ERSS, OHTS–EGPS, VISA, G-ROP, Ocular Trauma Score and many more) • Per-eye records (OD/OS) and progress tracking with charts • Visual acuity converter (Snellen · decimal · logMAR · ETDRS) • Instant search by name or acronym • Exam-room mode: dark background and low-luminance amber to preserve dark adaptation • 100% offline, no login and no cloud — your data stays on the device A reference and educational tool for health professionals. Not a medical device; it does not diagnose or recommend treatment.
Screenshots
Verdict
The clearest difference is price: Oftalmo Escalas at $1.99 against VisionC (ETDRS Visual Acuity)'s $79.99. Oftalmo Escalas also leads on update cadence (every 10 days vs every 8 months). VisionC (ETDRS Visual Acuity)'s advantage is iOS requirement (10.0 vs 17.0). On 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
VisionC (ETDRS Visual Acuity) costs $79.99 and Oftalmo Escalas $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
VisionC (ETDRS Visual Acuity) ships an update every 8 months, Oftalmo Escalas every 10 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.
| Parameter | VisionC (ETDRS Visual Acuity) | Oftalmo Escalas |
|---|---|---|
| Price | $79.99 | $1.99 — better |
| Update frequency | Every 8 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 4 MB |
| Age rating | 4+ | 17+ |
| Developer | Qvision, Departamento de Oftalmología | Isaias Fiuza Cabral |
In-app purchases
VisionC (ETDRS Visual Acuity)
No in-app purchases
Oftalmo Escalas
No in-app purchases
Questions
Is VisionC (ETDRS Visual Acuity) free?
Is Oftalmo Escalas free?
Do VisionC (ETDRS Visual Acuity) or Oftalmo Escalas have ads?
Which is updated more often, VisionC (ETDRS Visual Acuity) or Oftalmo Escalas?
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