Easy Eye vs Calculate VA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Eye
This app serves as a patient education tool for eye care professionals. It features a 3D eye model for interactive demonstrations, a vision simulator to illustrate corrections and disturbances, and tools to visualize visual field defects and light effects like halos and glare.
- Interactive 3D eye model
- Vision simulator for corrections
- Halo & glare simulation
- Visual field defect simulator
- 3D animations for explanations
- Drawing comments on 3D model
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The best patient education system for ophthalmologists. Start today and work more productively, save time in patient education and offer your services in the best possible way! 3D EYE MODEL Use your fingers to move the new 3D eye model on your iPad or use your fingers or a compatible pen to draw your comments directly on the 3D model. Choose different camera perspectives, cloud the lense with a simple tap and move an IOL in the capsular bag of the eye. Ideal for an individual patient education. VISION SIMULATOR Starting from the personal vision of the patient, you can show different correction procedures (IOL) and visual disturbances with the Vision Simulator. HALO&GLARE SIMULATOR With the new Halo & Glare simulator, you can simulate halo, glare and starburst around light sources at dawn / night. Inform your patients about possible side effects of premium lenses in a personal conversation. VISUAL FIELD DEFECT SIMULATOR With the new visual field defect simulator, visual field defects can be simulated more realistically for a better patient understanding. This facilitates patient education and helps you to emphasize the need for early detection. ANIMATIONS A wide variety of easy to understand 3D animations help you to explain complicated issues. WHAT OUR CUSTOMERS SAY: "Compulsory download for ophthalmologists." - Ophthal-Optics.de "Patient education was never so easy, vivid, comprehensible and efficient." - Dr. Stefan Bültman (Deputy County Chairman BaWü, Professional Association of ophthalmologists (BVA) Baden-Württemberg, Germany) "The perfect education assistent for optometrists, ophthalmologists and physician assistants." - Dr. Klostermann (Auregio GmbH, Germany) "Easy Eye is ideal to ensure a consistent quality of education across multiple practice locations." - Prof. Dr. med. Fabian ("AugenCentrum" Rosenheim, Germany) "My opinion of patient education systems has turned 180 ° to the positive." - Dr. Sachers (eye Centre Basel, Switzerland) "Can´t do it without Easy Eye." - Dr. Oancea (ophthalmologist, Germany) Learn more about IKONION® and our products on our homepage. Terms of Use: http://ikonion.com/privacypolicy.html
Calculate VA
Instantly convert between common visual acuity measurements. This tool is designed for eye care professionals needing to fluidly switch between Snellen, Decimal, logMAR, and ETDRS Letter formats. Get accurate conversions with a single tap.
- Instant visual acuity conversions
- Supports Snellen 20/20
- Supports Snellen 6/6
- Supports Decimal
- Supports logMAR
- Supports ETDRS Letters
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Calculate VA gives you a quick and accurate way to easily convert between common measures of visual acuity. Conversions are made instantly when you enter one of the visual acuity measurements and press "Calculate". Choose from: * Snellen 20 * Snellen 6 * Decimal * logMAR * ETDRS Letters This is useful for any optometrist or ophthalmologist who needs to convert fluidly between all 5 of the common visual acuity measures.
Screenshots
Verdict
The clearest difference is rating: Calculate VA at 5.0 against Easy Eye's 4.5. Calculate VA also leads on in-app purchases (none vs 1). Easy Eye's advantage is update cadence (monthly vs every 11 months). On price, review sentiment, ratings volume and ads 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. Easy Eye sells 1 one-off in-app purchase. Calculate VA asks for nothing beyond the download.
Calculate VA holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 4 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Easy Eye ships an update monthly, Calculate VA every 11 months. The most recent releases landed on October 9, 2026 and October 26, 2026 respectively.
| Parameter | Easy Eye | Calculate VA |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 4 — better | 3 |
| Update frequency | Monthly — better | Every 11 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free | Free |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 17.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 1.1 GB | 1 MB |
| Age rating | 12+ | 12+ |
| Developer | IKONION | David Kramer |
Customer experience
Easy Eye
Calculate VA
In-app purchases
Easy Eye
- Easy Eye Premium$99.99
Calculate VA
No in-app purchases









