Comparison

AAO eBooks vs IOL Reference

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AAO eBooks

Access essential ophthalmology textbooks on your mobile device. Search, browse, and download purchased eBooks for offline use. Enhance learning with notes, highlights, and CME credit opportunities.

Highlights
  • Access purchased eBooks
  • Offline reading capability
  • Search and browse content
  • Highlighting and note-taking
  • Bookmark functionality
  • Earn CME credits
Features
Read full description

In the busy, demanding profession of ophthalmology, it is important to have access to up-to-date, reliable information at all times. With the American Academy of Ophthalmology’s eBook app, you get convenient access to essential Academy textbooks from your iPad or iPhone. Download this free app to: • Search, browse and access your purchased eBooks online, or download them for offline use • Quickly find relevant images and videos • Customize your learning with easy highlighting, note-taking and bookmarking • Participate in activities that provide opportunities for earning continued medical education (CME) credits (selected titles only, see individual publications for more information) Academy publications are written and reviewed by expert ophthalmologists and are designed to help you improve patient outcomes and practice efficiency. Academy eBooks must be purchased from the Academy before they can be accessed via the app. First, download this app to your device, then visit AAO Store to make your purchase. Return to the Academy eBook app anytime you want to read your eBooks. About the Academy: The American Academy of Ophthalmology is the world's largest association of eye physicians and surgeons with more than 32,000 members worldwide. Eye health care is provided by the three "O's" – ophthalmologists, optometrists, and opticians. It is the ophthalmologist who has the education and training to treat it all: eye diseases, infections and injuries, and perform eye surgery. Ophthalmologists provide comprehensive eye care, ranging from optical to medical to surgical. The mission of the Academy is to advance the lifelong learning and professional interests of ophthalmologists to ensure that the public can obtain the best possible eye care. Academy members are dedicated to enhancing the quality of life for every individual they treat by helping each to see his or her best and by protecting their patients' vision and eye health throughout life. Academy members are committed to responding compassionately to their patients' individual needs and to advancing the highest standards of comprehensive eye care. The American Academy of Ophthalmology is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.

About

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.

Highlights
  • Searchable IOL database
  • FDA-approved lens catalog
  • Database updates
  • Ophthalmology networking
  • Eye care tools
Features
Read full description

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

AAO eBooks4 screens
IOL Reference4 screens

Verdict

The call

The clearest difference is review sentiment: IOL Reference at 89% against AAO eBooks's 18%. IOL Reference also leads on rating (4.7 vs 3.8) and update cadence (weekly vs every 3 months). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

IOL Reference holds the better App Store score, 4.7 against 3.8. Both are backed by a comparable volume of ratings — 5 and 15 respectively. Written reviews point the same way: 18% of AAO eBooks's written reviews are positive against 89% of IOL Reference's.

UpkeepUpdate frequency

AAO eBooks ships an update every 3 months, IOL Reference weekly. The most recent releases landed on June 6, 2026 and July 5, 2026 respectively.

Scorecard4 real differences · 6 level
AAO eBooks versus IOL Reference: the parameters behind the verdict, then further details
ParameterAAO eBooksIOL Reference
PriceFreeFree
Rating3.8 (5 ratings)4.7 (15 ratings) — better
Positive reviews18.2% of reviews88.9% of reviews — better
Number of ratings515 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.0 — better15.5
Further details — not scored
Size78 MB823 MB
Age rating17+4+
DeveloperAmerican Academy of Ophthalmology, Inc.Gurpal Virdi

Customer experience

AAO eBooks

All ratings5 ratings
Positive60.0%
Neutral20.0%
Negative20.0%
Written reviews11 reviews
Positive18.2%
Neutral9.1%
Negative72.7%

IOL Reference

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews9 reviews
Positive88.9%
Neutral0.0%
Negative11.1%

In-app purchases

None

AAO eBooks

No in-app purchases

None

IOL Reference

No in-app purchases

Questions

Is AAO eBooks free?
AAO eBooks is free to download, with no in-app purchases.
Is IOL Reference free?
IOL Reference is free to download, with no in-app purchases.
Which has better reviews, AAO eBooks or IOL Reference?
IOL Reference is rated higher. AAO eBooks averages 3.8 out of 5 from 5 ratings, while IOL Reference averages 4.7 from 15 ratings.
Do AAO eBooks or IOL Reference have ads?
Neither AAO eBooks nor IOL Reference shows ads.
Which is updated more often, AAO eBooks or IOL Reference?
AAO eBooks ships an update every 3 months, and IOL Reference weekly. Most recently, AAO eBooks was updated on June 6, 2026 and IOL Reference on July 5, 2026.

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