# Glasses 2 Contacts vs Optometry Boards Prep

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.

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

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.

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.

## The numbers

| Metric | Glasses 2 Contacts | Optometry Boards Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/glasses-2-contacts/id1444361235/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/optometry-boards-prep/id1594439700/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 12 months** | Every 26 months |
| Monetization | Ad-supported | **Free** |
| Size | 20 MB | 32 MB |
| Requires iOS | **13.4** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Hoang Harry Tran](https://appshunter.io/developer/1444361234) | [Crack Exam Preparation Software, LLC](https://appshunter.io/developer/1076616463) |

## What reviewers say

### Glasses 2 Contacts

[App page](https://appshunter.io/ios/app/glasses-2-contacts/id1444361235)

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:** macOS Compatibility

**In-app purchases:** none


### Optometry Boards Prep

[App page](https://appshunter.io/ios/app/optometry-boards-prep/id1594439700)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*