# RDA Dental Assistant Exam Prep vs DANB CDA Test Prep

The clearest difference is update cadence: DANB CDA Test Prep at every 3 weeks against RDA Dental Assistant Exam Prep's every 9 months. RDA Dental Assistant Exam Prep'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. RDA Dental Assistant Exam Prep sells 9 in-app purchases, starting at $8.99 per 7 days and DANB CDA Test Prep sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

RDA Dental Assistant Exam Prep ships an update every 9 months, DANB CDA Test Prep every 3 weeks. The most recent releases landed on October 14, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | RDA Dental Assistant Exam Prep | DANB CDA Test Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 3 weeks** |
| Size | 53 MB | 9 MB |
| Requires iOS | **15.1** | 17.2 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [YAUHEN BAHDANOVICH](https://appshunter.io/developer/1711932790) | [Cargo Teleport Inc](https://appshunter.io/developer/1761832181) |

## What reviewers say

### RDA Dental Assistant Exam Prep

[App page](https://appshunter.io/ios/app/rda-dental-assistant-exam-prep/id6478512997)

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RDA Weekly Full Access | $8.99 | per 7 days |
| RDA Monthly Full Access | $24.99 | per month |
| RDA Monthly Full Access | $24.99 | per month |
| RDA Quarterly Full Access | $55.99 | per 3 months |
| RDA Quarterly Full Access | $55.99 | per 3 months |
| RDA Semiannual Full Access | $75.99 | per 6 months |
| RDA Semiannual Full Access | $75.99 | per 6 months |
| RDA Annual Full Access | $109.99 | per year |
| RDA Annual Full Access | $109.99 | per year |


### 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 |


## Frequently asked questions

### Is RDA Dental Assistant Exam Prep free?

RDA Dental Assistant Exam Prep is free to download, with in-app purchases available.

### Is DANB CDA Test Prep free?

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

### Do RDA Dental Assistant Exam Prep or DANB CDA Test Prep have ads?

Neither RDA Dental Assistant Exam Prep nor DANB CDA Test Prep shows ads.

### Which is updated more often, RDA Dental Assistant Exam Prep or DANB CDA Test Prep?

RDA Dental Assistant Exam Prep ships an update every 9 months, and DANB CDA Test Prep every 3 weeks. Most recently, RDA Dental Assistant Exam Prep was updated on October 14, 2026 and DANB CDA Test Prep on October 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.*