IOL vs Eyedea Refractive
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IOL
This medical tool assists in calculating intraocular lens power for cataract surgery. It provides essential calculations for ophthalmologists and eye care professionals.
- Intraocular lens power calculation
- Cataract surgery assistance
- Medical calculation tool
- Ophthalmology aid
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An intraocular lens power calculator for cataract surgery.
Eyedea Refractive
This medical app assists ophthalmologists in pre-operative evaluations for refractive surgeries like Lasik and PRK. It calculates various metrics after applying nomograms, aiding in surgical indication judgments alongside clinical evaluation.
- Refractive surgery calculator
- Pre-operative evaluation tool
- LASIK, Lenticular Extraction, PRK support
- Nomogram application
- Post-surgery refraction calculation
- Residual stromal bed estimation
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Clinical calculator for Refractive Surgery, designed to support pre- and post-operative evaluation of LASIK, Lenticular Extraction (SMILE), and PRK, based on current medical literature. From the patient's pre-operative data, it calculates post-nomogram refraction, central and maximum ablation, residual stromal bed, PTA/PSTA, LASIK Ectasia Risk Score, predicted final keratometry, mitomycin time, and more. In postoperative evaluation, it analyzes spherical refractive outcome along with PTA and keratometry variation, classifying results into objective clinical categories. Results are intended as clinical decision support and should always be correlated with the patient's in-person evaluation.
Screenshots
Verdict
The clearest difference is rating: Eyedea Refractive at 5.0 against IOL's 3.6. IOL's advantage is update cadence (weekly vs fortnightly) and ratings volume (9 vs 3). On price, ads, in-app purchases and monetization model 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.
Eyedea Refractive holds the better App Store score, 5.0 against 3.6. Both are backed by a comparable volume of ratings — 9 and 3 respectively.
IOL ships an update weekly, Eyedea Refractive fortnightly. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | IOL | Eyedea Refractive |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (9 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 9 — better | 3 |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 11.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 57 MB |
| Age rating | 4+ | 17+ |
| Developer | Columbia University | Eyedea Educacao e Desenvolvimento em Oftalmologia LTDA |
Customer experience
IOL
Eyedea Refractive
In-app purchases
IOL
No in-app purchases
Eyedea Refractive
No in-app purchases
