# Booster Prep vs DANB RHS Exam by Rocket Prep

The clearest difference is update cadence: Booster Prep at fortnightly against DANB RHS Exam by Rocket Prep's every 3 months. Booster Prep also leads on ratings volume (729 vs 8). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Booster Prep sells 7 one-off in-app purchases and DANB RHS Exam by Rocket Prep sells 8 in-app purchases, starting at $11.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.9 for Booster Prep against 5.0 for DANB RHS Exam by Rocket Prep. That said, the two scores are not equally well evidenced: Booster Prep has 729 ratings behind it against 8, so its average is the more settled of the two.

Booster Prep ships an update fortnightly, DANB RHS Exam by Rocket Prep every 3 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Booster Prep | DANB RHS Exam by Rocket Prep |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (729 ratings)](https://appshunter.io/ios/app/booster-prep/id6446200474/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/danb-rhs-exam-by-rocket-prep/id6751879893/reviews)** |
| Number of ratings | **729** | 8 |
| Positive reviews | 60.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 54 MB | 49 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Booster Prep Inc.](https://appshunter.io/developer/1676590927) | [Darya Pyzhyk](https://appshunter.io/developer/1799009188) |

## What reviewers say

### 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


### DANB RHS Exam by Rocket Prep

[App page](https://appshunter.io/ios/app/danb-rhs-exam-by-rocket-prep/id6751879893)

Prepare for the Radiation Health & Safety (RHS) certification exam with this comprehensive study tool. It offers extensive question banks, detailed explanations, customizable study modes, and progress tracking to help dental assistants master radiographic practices and advance their careers.

**Highlights:** Extensive question bank, Detailed explanations and references, Customizable study modes, Progress tracking and analytics, Expert-led review resources, Active learning tools, Offline access

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RHS Weekly Full Access | $11.99 | per 7 days |
| RHS Monthly Full Access | $27.99 | per month |
| RHS Monthly Full Access | $27.99 | per month |
| RHS Quarterly Full Access | $49.99 | per 3 months |
| RHS Quarterly Full Access | $49.99 | per 3 months |
| DANB_RHS_mock_tries_1 | $4.99 | one-time |
| DANB_RHS_mock_tries_3 | $9.99 | one-time |
| DANB_RHS_mock_tries_5 | $14.99 | one-time |


## Frequently asked questions

### Is Booster Prep free?

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

### Is DANB RHS Exam by Rocket Prep free?

DANB RHS Exam by Rocket Prep is free to download, with in-app purchases available.

### Which has better reviews, Booster Prep or DANB RHS Exam by Rocket Prep?

DANB RHS Exam by Rocket Prep is rated higher. Booster Prep averages 4.9 out of 5 from 729 ratings, while DANB RHS Exam by Rocket Prep averages 5.0 from 8 ratings.

### Do Booster Prep or DANB RHS Exam by Rocket Prep have ads?

Neither Booster Prep nor DANB RHS Exam by Rocket Prep shows ads.

### Which is updated more often, Booster Prep or DANB RHS Exam by Rocket Prep?

Booster Prep ships an update fortnightly, and DANB RHS Exam by Rocket Prep every 3 months. Most recently, Booster Prep was updated on October 27, 2026 and DANB RHS Exam by Rocket Prep on October 24, 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.*