SignOver vs IOL Reference
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SignOver
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The SignOver app is the simple, fast and secure way to sign over patient care when on call. LOGIN: - Easy and instant access through any mobile device - Secure login using a unique institution username - Sign in once and the app will keep you logged in SIGN OVER: - Securely sign over on-call cases to residents, staff and administrative support staff - Seamless form design to ensure efficient patient care - Information is sent to institution emails only - Data is not externally stored to ensure patient confidentiality
IOL Reference
This ophthalmology utility helps surgeons find FDA-approved intraocular lenses. It features a searchable database of nearly 10,000 lenses, updated with new approvals and changes. The app also serves as a social media and networking platform for eye care professionals.
- Searchable IOL database
- FDA-approved lens catalog
- Database updates
- Ophthalmology networking
- Eye care tools
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IOL Reference is a cross-platform ophthalmology utility, social media, and networking service that provides users with a wide array of eye care tools to optimize their outcomes. This unique app allows surgeons to quickly search for an FDA-approved, currently marketed intraocular lens (IOLs) that meets their needs and specifications. The database contains almost 10,000 individually cataloged lenses and will be updated to include newly FDA-approved IOLs, changes to current lenses, and corrections. This app was created by Gurpal Virdi, MD and Matt Hirabayashi, MD
Screenshots
Verdict
The clearest difference is update cadence: IOL Reference at weekly against SignOver's every 2 weeks. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
SignOver ships an update every 2 weeks, IOL Reference weekly. The most recent releases landed on September 9, 2026 and July 5, 2026 respectively.
| Parameter | SignOver | IOL Reference |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.7 (15 ratings) — better |
| Positive reviews | — | 88.9% of reviews |
| Number of ratings | — | 15 — better |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 — better | 15.5 |
| Further details — not scored | ||
| Size | 17 MB | 823 MB |
| Age rating | 4+ | 4+ |
| Developer | Mash Darvish | Gurpal Virdi |
In-app purchases
SignOver
No in-app purchases
IOL Reference
No in-app purchases
Questions
Is SignOver free?
Is IOL Reference free?
Do SignOver or IOL Reference have ads?
Which is updated more often, SignOver or IOL Reference?
Other comparisons
