# Occluder vs Optometry Boards Prep

The clearest difference is price: Optometry Boards Prep at Free against Occluder's $0.99. Occluder's advantage is iOS requirement (15.6 vs 26.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Optometry Boards Prep is free to download; Occluder costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Occluder ships an update every 51 months, Optometry Boards Prep every 26 months. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Occluder | Optometry Boards Prep |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/optometry-boards-prep/id1594439700/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 51 months | **Every 26 months** |
| Monetization | — | Free |
| Size | 2 MB | 32 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Cabezon Orjales](https://appshunter.io/developer/347664743) | [Crack Exam Preparation Software, LLC](https://appshunter.io/developer/1076616463) |

## What reviewers say

### Occluder

[App page](https://appshunter.io/ios/app/occluder/id1116490982)

**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 Occluder free?

Occluder costs $0.99, with no in-app purchases.

### Is Optometry Boards Prep free?

Optometry Boards Prep is free to download, with no in-app purchases.

### Do Occluder or Optometry Boards Prep have ads?

Neither Occluder nor Optometry Boards Prep shows ads.

### Which is updated more often, Occluder or Optometry Boards Prep?

Occluder ships an update every 51 months, and Optometry Boards Prep every 26 months. Most recently, Occluder was updated on September 20, 2026 and Optometry Boards Prep on September 16, 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.*