# DANB CDA Test Prep vs DANB RHS Exam Test Prep 2026

The clearest difference is update cadence: DANB CDA Test Prep at every 3 weeks against DANB RHS Exam Test Prep 2026's every 3 months. DANB RHS Exam Test Prep 2026's advantage is iOS requirement (15.1 vs 17.2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. DANB CDA Test Prep sells 2 in-app purchases, starting at $9.99 per month and DANB RHS Exam Test Prep 2026 sells 9 in-app purchases, starting at $12.99 per 7 days. Whichever you choose, the download price is not the number that matters.

DANB CDA Test Prep ships an update every 3 weeks, DANB RHS Exam Test Prep 2026 every 3 months. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | DANB CDA Test Prep | DANB RHS Exam Test Prep 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (32 ratings)](https://appshunter.io/ios/app/danb-rhs-exam-test-prep-2026/id6743098611/reviews)** |
| Number of ratings | — | **32** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 9 MB | 59 MB |
| Requires iOS | 17.2 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) | [Exam Prep OU](https://appshunter.io/developer/1689642184) |

## What reviewers say

### DANB CDA Test Prep

[App page](https://appshunter.io/ios/app/danb-cda-test-prep/id6738899542)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly subscription | $9.99 | per month |
| Lifetime version | $24.99 | one-time |


### DANB RHS Exam Test Prep 2026

[App page](https://appshunter.io/ios/app/danb-rhs-exam-test-prep-2026/id6743098611)

Prepare for the Radiation Health and Safety (RHS) exam with a comprehensive study tool. Access a large question bank, customizable quizzes, and detailed performance tracking to master dental radiation safety principles. Study anytime, anywhere to boost your confidence and career prospects.

**Highlights:** Extensive question bank, Customizable quiz modes, Performance tracking, Comprehensive study materials, Timed quizzes and mock exams, Expert insights

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

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RHS Weekly Full Access | $12.99 | per 7 days |
| RHS Monthly Full Access | $29.99 | per month |
| RHS Monthly Full Access | $29.99 | per month |
| RHS Quarterly Full Access | $69.99 | per 3 months |
| RHS Quarterly Full Access | $69.99 | per 3 months |
| RHS Semiannual Full Access | $116.99 | per 6 months |
| RHS Semiannual Full Access | $116.99 | per 6 months |
| RHS Annual Full Access | $179.99 | per year |
| RHS Annual Full Access | $179.99 | per year |


## Frequently asked questions

### Is DANB CDA Test Prep free?

DANB CDA Test Prep is free to download, with in-app purchases available.

### Is DANB RHS Exam Test Prep 2026 free?

DANB RHS Exam Test Prep 2026 is free to download, with in-app purchases available.

### Do DANB CDA Test Prep or DANB RHS Exam Test Prep 2026 have ads?

Neither DANB CDA Test Prep nor DANB RHS Exam Test Prep 2026 shows ads.

### Which is updated more often, DANB CDA Test Prep or DANB RHS Exam Test Prep 2026?

DANB CDA Test Prep ships an update every 3 weeks, and DANB RHS Exam Test Prep 2026 every 3 months. Most recently, DANB CDA Test Prep was updated on October 28, 2026 and DANB RHS Exam Test Prep 2026 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.*