eye vs visuSense
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
eye
This iPad application assists eye care professionals in taking precise fitting parameters for personalized lenses. It requires a specific kit from Essilor to function, enabling measurements like far PD, height, and vertex distance.
- Measure Far Pd
- Measure Height
- Measure Wrap Angle
- Measure Pantoscopic Angle
- Measure Vertex
- Measure Reading Distance
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The eye-ruler 2 app is a measuring stand-alone solution on iPad. This application is dedicated for Essilor Eye Care Professionals.With a specific kit, to be ordered to Essilor, your iPad tablet allows you to take the following fitting parameters: - Far Pd - Height - Wrap angle - Pantoscopic angle - Vertex - Reading distance IMPORTANT: This application is exclusively dedicated to Eye Care Professional with an expertise in measurement for personalised lenses. eye-ruler 2 needs to be combined with a specific kit and is compatible with iPad 3 or newer. The application can’t work without this kit. The optician is responsible for getting at his own expenses the eye-ruler kit to be ordered to Essilor.
visuSense
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HOYA visuSense features two interactive measurements which lead to the Visual Sensory Intelligence of the patient. HOYA GazeTrack captures the patient’s visual pattern, posture and head movements when switching gaze between near and far distances. HOYA ClarityTrack assesses the patient’s visual preferences in terms of clarity requirements and blur tolerance as well as their details perception, during reading or other close-up activities. visuSense offers a powerful way for Eye Care Professionals to differentiate their practice. By integrating each patient’s distinct visual sensory profile, state-of-the-art solutions are delivered, tailored to the needs of even most discerning presbyopic patients.
Screenshots
Verdict
The clearest difference is iOS requirement: eye at 15.0 against visuSense's 17.0. On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
eye ships an update every 2 months, visuSense every 3 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | eye | visuSense |
|---|---|---|
| Price | Free | Free |
| Rating | 1.5 (4 ratings) — better | — |
| Positive reviews | 20.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 409 MB | 53 MB |
| Age rating | 4+ | 17+ |
| Developer | Activisu Solutions | Hoya Holdings NV |
In-app purchases
eye
No in-app purchases
visuSense
No in-app purchases








