# Crack OAT Optometry Test Prep vs Booster Prep

The clearest difference is rating: Booster Prep at 4.9 against Crack OAT Optometry Test Prep's 4.4. Booster Prep also leads on update cadence (fortnightly vs every 5 months) and ratings volume (700 vs 37). Crack OAT Optometry Test Prep's advantage is in-app purchases (none vs 11) and review sentiment (90% vs 59%). On price, ads and device support there is nothing between them.

Both are free to download. Booster Prep sells 7 one-off in-app purchases. Crack OAT Optometry Test Prep asks for nothing beyond the download.

Booster Prep holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Booster Prep has 700 ratings behind it against 37, so its average is the more settled of the two. Written reviews complicate that: 90% of Crack OAT Optometry Test Prep's written reviews are positive against 59% of Booster Prep's, so the app with the better star average is not the one people write more warmly about.

Crack OAT Optometry Test Prep ships an update every 5 months, Booster Prep fortnightly. The most recent releases landed on July 7, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Crack OAT Optometry Test Prep | Booster Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (37 ratings)](https://appshunter.io/ios/app/crack-oat-optometry-test-prep/id1323462344/reviews) | **[4.9 (700 ratings)](https://appshunter.io/ios/app/booster-prep/id6446200474/reviews)** |
| Number of ratings | 37 | **700** |
| Positive reviews | **90.0% of reviews** | 59.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 32 MB | 52 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Crack Exam Preparation Software, LLC](https://appshunter.io/developer/1076616463) | [Booster Prep Inc.](https://appshunter.io/developer/1676590927) |

## What reviewers say

### Crack OAT Optometry Test Prep

[App page](https://appshunter.io/ios/app/crack-oat-optometry-test-prep/id1323462344)

Prepare for the Optometry Admission Test with extensive video crash courses, over 20,000 flashcards, and numerous practice tests. This tool aims to help you score higher and save study time, increasing your chances of acceptance into optometry school.

**Highlights:** 100+ hours of OAT crash course videos, Over 20,000 OAT flashcards, Simulate OAT with practice tests, 3000+ practice questions with explanations, Full-length diagnostic tests, Improve test-taking skills

**In-app purchases:** none


### Booster Prep

[App page](https://appshunter.io/ios/app/booster-prep/id6446200474)

Access comprehensive question banks and high-quality educational videos for dental and medical school entrance exams. Study efficiently on the go with seamless integration to your existing account.

**Highlights:** Comprehensive question banks, High-quality educational videos, Seamless account integration, User-friendly interface, Mobile exam preparation

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +5 Additional Perceptual Tests | $45.00 | one-time |
| +5 Additional Org Chem Tests | $45.00 | one-time |
| +5 Reading Comprehension Tests | $45.00 | one-time |
| +5 Quant Reasoning Tests | $45.00 | one-time |
| +5 Additional GenChem Tests | $45.00 | one-time |
| +5 QuantReasoning Tests | $45.00 | one-time |
| +5 Full Length Tests | $130.99 | one-time |

**What reviewers like**

- 📚 Excellent study materials and comprehensive content
- 🎥 Clear, well-explained videos for complex topics
- 📱 Convenient mobile access for studying on-the-go
- ✅ Accurate practice questions reflecting actual exams
- 🧭 Easy navigation and progress tracking

**What reviewers complain about**

- 💰 High subscription costs ($399-$699) not disclosed upfront
- 🔒 No offline access or download capability
- 🐛 Frequent crashes and freezing issues
- 📺 Screen-only reading not ideal for extended study sessions
- 📱 Mobile version lacks features available on desktop

**Reported bugs**

- App crashes frequently, especially during games/practice questions
- App freezes and requires phone restart
- Buggy interface with crashes after practice questions
- False update notifications despite having latest version
- Server-side errors preventing app functionality

**Requested features**

- Study guides and notes on mobile version
- Cheat sheets accessible on mobile
- Practice tests on mobile app
- Video download capability for offline viewing
- PAT generators on mobile


## Frequently asked questions

### Is Crack OAT Optometry Test Prep free?

Crack OAT Optometry Test Prep is free to download, with no in-app purchases.

### Is Booster Prep free?

Booster Prep is free to download, with in-app purchases available.

### Which has better reviews, Crack OAT Optometry Test Prep or Booster Prep?

Booster Prep is rated higher. Crack OAT Optometry Test Prep averages 4.4 out of 5 from 37 ratings, while Booster Prep averages 4.9 from 700 ratings.

### Do Crack OAT Optometry Test Prep or Booster Prep have ads?

Neither Crack OAT Optometry Test Prep nor Booster Prep shows ads.

### Which is updated more often, Crack OAT Optometry Test Prep or Booster Prep?

Crack OAT Optometry Test Prep ships an update every 5 months, and Booster Prep fortnightly. Most recently, Crack OAT Optometry Test Prep was updated on July 7, 2026 and Booster Prep on September 21, 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.*