# Respiratory System Quizzes vs Rad Tech Audio

The clearest difference is price: Respiratory System Quizzes at $2.99 against Rad Tech Audio's $107.99. Respiratory System Quizzes also leads on iOS requirement (11.0 vs 15.1). Rad Tech Audio's advantage is chart position (#200 vs unranked). On update cadence, ads, in-app purchases and device support there is nothing between them.

Respiratory System Quizzes costs $2.99 and Rad Tech Audio $107.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 39 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Respiratory System Quizzes | Rad Tech Audio |
| --- | --- | --- |
| Price | **$2.99** | $107.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | Every 39 months |
| Monetization | Paid | — |
| Best chart rank | — | **#200** |
| Size | 13 MB | 214 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 17+ |
| Developer | [Coskun CAKIR](https://appshunter.io/developer/482066275) | [RTS Publishing Co Inc](https://appshunter.io/developer/604916069) |

## What reviewers say

### Respiratory System Quizzes

[App page](https://appshunter.io/ios/app/respiratory-system-quizzes/id1440775318)

Test your knowledge of the respiratory system with quizzes and study cards. Features offline access, mock tests, and detailed performance statistics. Ideal for medical students and professionals preparing for exams.

**Highlights:** Offline access, Multiple quiz modes, Mock tests with randomized questions, Detailed performance statistics, Quiz history tracking, Study cards for quick memorization, Offline dictionary of medical terms

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

**In-app purchases:** none


### Rad Tech Audio

[App page](https://appshunter.io/ios/app/rad-tech-audio/id6444367028)

**Currently charting:** #200 Top Paid · Education (US App Store)

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

**In-app purchases:** none


## Frequently asked questions

### Is Respiratory System Quizzes free?

Respiratory System Quizzes costs $2.99, with no in-app purchases.

### Is Rad Tech Audio free?

Rad Tech Audio costs $107.99, with no in-app purchases.

### Do Respiratory System Quizzes or Rad Tech Audio have ads?

Neither Respiratory System Quizzes nor Rad Tech Audio shows ads.

### Which is updated more often, Respiratory System Quizzes or Rad Tech Audio?

Respiratory System Quizzes ships an update every 39 months, and Rad Tech Audio every 39 months. Most recently, Respiratory System Quizzes was updated on October 24, 2026 and Rad Tech Audio on October 15, 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.*