Comparison

IOL Reference vs Hydroxychloroquine Calculator

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

Head to head
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

About

Hydroxychloroquine Calculator

This medical calculator assists healthcare providers in determining safe hydroxychloroquine and chloroquine dosages. It offers instant weight-based calculations, unit conversions, and cumulative dose tracking, with clear warnings for exceeding recommended limits.

Highlights
  • Weight-based dosing calculation (mg/kg/day)
  • Metric and imperial unit conversion
  • Cumulative dose tracking
  • Retinopathy risk time-to-threshold calculations
  • Hydroxychloroquine and chloroquine support
  • Dose limit warnings
Features
Read full description

Calculate safe hydroxychloroquine (Plaquenil®) and chloroquine dosing with this professional medical calculator. Designed for healthcare providers to quickly determine appropriate medication doses based on current guidelines. Key Features: - Instant calculation of weight-based dosing (mg/kg/day) - Automatic conversion between metric and imperial units - Cumulative dose tracking for long-term medication use - Time-to-threshold calculations for retinopathy risk - Support for both hydroxychloroquine and chloroquine - Clear warnings when doses exceed recommended limits Evidence-based dosing guidelines from current literature This app is designed as a clinical decision support tool for healthcare professionals. Always use professional judgment and consult current clinical guidelines when making medical decisions. This calculator does not replace clinical expertise or official prescribing information. All calculations are performed locally on your device. No personal or patient data is collected or transmitted.

Screenshots

IOL Reference4 screens
Hydroxychloroquine Calculator3 screens

Verdict

The call

The clearest difference is price: IOL Reference at Free against Hydroxychloroquine Calculator's $1.99. IOL Reference also leads on ratings volume (15 vs 1). Hydroxychloroquine Calculator's advantage is rating (5.0 vs 4.7). On ads, in-app purchases, device support and iOS requirement 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

IOL Reference is free to download; Hydroxychloroquine Calculator costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Hydroxychloroquine Calculator holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: IOL Reference has 15 ratings behind it against 1, so its average is the more settled of the two.

Scorecard4 real differences · 6 level
IOL Reference versus Hydroxychloroquine Calculator: the parameters behind the verdict, then further details
ParameterIOL ReferenceHydroxychloroquine Calculator
PriceFree — better$1.99
Rating4.7 (15 ratings)5.0 (1 ratings) — better
Positive reviews88.9% of reviews—
Number of ratings15 — better1
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.5 — better15.6
Further details — not scored
Size823 MB0 MB
Age rating4+4+
DeveloperGurpal VirdiMy Call Bag LLC

Customer experience

IOL Reference

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

Hydroxychloroquine Calculator

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

IOL Reference

No in-app purchases

None

Hydroxychloroquine Calculator

No in-app purchases

Questions

Is IOL Reference free?
IOL Reference is free to download, with no in-app purchases.
Is Hydroxychloroquine Calculator free?
Hydroxychloroquine Calculator costs $1.99, with no in-app purchases.
Which has better reviews, IOL Reference or Hydroxychloroquine Calculator?
Hydroxychloroquine Calculator is rated higher. IOL Reference averages 4.7 out of 5 from 15 ratings, while Hydroxychloroquine Calculator averages 5.0 from 1 ratings.
Do IOL Reference or Hydroxychloroquine Calculator have ads?
Neither IOL Reference nor Hydroxychloroquine Calculator shows ads.

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