Comparison

Glasses 2 Contacts vs Optometry Boards Prep

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

Head to head
About

Glasses 2 Contacts

This educational tool helps students convert glasses prescriptions to contact lens prescriptions. It offers accurate results with a user-friendly layout and includes keratometry input for fitting guidance. The app is completely free to use for learning purposes.

Highlights
  • Prescription conversion
  • Keratometry input
  • Fitting guidance
  • User-friendly layout
  • Educational tool
Features
Read full description

Glasses 2 Contacts is a valuable educational tool designed to help students convert glasses prescriptions to contact lens prescriptions (also known as vertex conversion). Whether you’re learning about contact lens fittings or need a tool to simplify the conversion process, this app provides accurate, easy-to-understand results. New Updates: - New, Improved User-Friendly Layout: Enjoy a cleaner, more intuitive design for a seamless experience. - Prescription Conversion: Quickly convert glasses prescriptions to contact lens prescriptions for educational purposes. - Keratometry Input: Enter keratometry readings and receive fitting guidance on whether to use toric, spherical, steep, or flat lenses based on your measurements. Glasses 2 Contacts is 100% free and intended to make learning easier for students without the need for subscriptions or purchases.

About

Optometry Boards Prep

Prepare for the NBEO® Part 1 exam with AI-powered study tools. Access practice tests, flashcards, video courses, and personalized study plans to help you earn your OD license. Trusted by over 20,000 students since 2005.

Highlights
  • AI-powered personalized study plans
  • Full-length practice tests
  • 5,000+ practice questions
  • 30+ hours of video courses
  • 20,000+ digital flashcards
  • AI Tutor and quiz generator
  • Performance analytics dashboard
Features
Read full description

You are one exam away from becoming a licensed optometrist. The NBEO® Part 1 is comprehensive and demanding. It covers the full depth of optometry science. Walking in underprepared is not an option. This is the moment you've been working toward. Don't leave it to chance. Join 20,000+ optometry students who used this platform to pass the NBEO® Part 1 and earn their OD license. Trusted since 2005. YOUR PERSONALIZED STUDY PLAN Enter your NBEO® Part 1 exam date. Our AI builds a custom study schedule around your life. Know exactly what to study every day. No more guessing. No more last-minute panic. BUILT FOR THE NBEO® PART 1. NOT GENERIC. Everything here was built specifically for the Optometry Boards. Not pulled from the internet. Not generic. Built by optometry faculty who know the NBEO® Part 1 inside and out. • 2 Full-Length NBEO® Part 1 Practice Tests: built to replicate the format, timing, and difficulty of the real exam • Unlimited retakes on both full-length tests • 5,000+ Practice Questions covering every subject on the NBEO® Part 1 blueprint • 30+ Hours of NBEO® Part 1 Video Courses: optometry faculty covering every major tested area • 20,000+ Digital Flashcards across all NBEO® Part 1 subject areas • 20+ Study Guides and Cheat Sheets: rapid review tools built for the boards format • Optometry School Application Resources AI TOOLS THAT KNOW THIS EXAM Our AI features are powered by NBEO®-specific content. Not generic optometry answers. Optometry Boards answers. • AI Tutor: your 24/7 NBEO® study partner. Ask any question. Get instant, detailed answers built around the NBEO® Part 1. • AI Quiz Generator: unlimited custom quizzes targeting any NBEO® subject area • AI Flashcard Generator: generate new NBEO®-specific flashcards on any topic in seconds • Personalized Study Schedule: built around your NBEO® Part 1 exam date KNOW WHERE YOU STAND • Performance Dashboard: detailed analytics after every practice session • Competitive Benchmarking: see how your scores compare to other optometry students • Automatic material updates: always studying the most current exam content WORKS EVERYWHERE • iPhone, iPad, and Mac The NBEO® Part 1 is your gateway. Pass it. Move forward. Help patients see clearly. One more step. Your OD license is within reach.

Screenshots

Glasses 2 Contacts3 screens
Optometry Boards Prep4 screens

Verdict

The call

The clearest difference is ads: Optometry Boards Prep at none against Glasses 2 Contacts's shown. Optometry Boards Prep also leads on monetization model (free vs ad-supported). Glasses 2 Contacts's advantage is update cadence (every 12 months vs every 26 months) and iOS requirement (13.4 vs 26.0). On price, rating, ratings volume and in-app purchases 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

On the App Store both sit at effectively the same score — 5.0 for Glasses 2 Contacts against 5.0 for Optometry Boards Prep. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

UpkeepUpdate frequency

Glasses 2 Contacts ships an update every 12 months, Optometry Boards Prep every 26 months. The most recent releases landed on September 17, 2026 and June 5, 2026 respectively.

Scorecard4 real differences · 6 level
Glasses 2 Contacts versus Optometry Boards Prep: the parameters behind the verdict, then further details
ParameterGlasses 2 ContactsOptometry Boards Prep
PriceFreeFree
Rating5.0 (2 ratings)5.0 (2 ratings)
Positive reviews0.0% of reviews—
Number of ratings22
Update frequencyEvery 12 months — betterEvery 26 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.4 — better26.0
Further details — not scored
Size20 MB32 MB
Age rating4+4+
DeveloperHoang Harry TranCrack Exam Preparation Software, LLC

Customer experience

Glasses 2 Contacts

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Optometry Boards Prep

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Glasses 2 Contacts

No in-app purchases

None

Optometry Boards Prep

No in-app purchases

Questions

Is Glasses 2 Contacts free?
Glasses 2 Contacts is free to download, with no in-app purchases.
Is Optometry Boards Prep free?
Optometry Boards Prep is free to download, with no in-app purchases.
Which has better reviews, Glasses 2 Contacts or Optometry Boards Prep?
Glasses 2 Contacts and Optometry Boards Prep are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.
Do Glasses 2 Contacts or Optometry Boards Prep have ads?
Glasses 2 Contacts shows ads; Optometry Boards Prep does not.
Which is updated more often, Glasses 2 Contacts or Optometry Boards Prep?
Glasses 2 Contacts ships an update every 12 months, and Optometry Boards Prep every 26 months. Most recently, Glasses 2 Contacts was updated on September 17, 2026 and Optometry Boards Prep on June 5, 2026.

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