# HVAC Flashcards vs EPA 608 Practice Tests

The clearest difference is price: HVAC Flashcards at Free against EPA 608 Practice Tests's $8.99. EPA 608 Practice Tests's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 13.0). On update cadence, ads and device support there is nothing between them.

HVAC Flashcards is free to download; EPA 608 Practice Tests costs $8.99 up front. HVAC Flashcards sells 1 in-app purchase, starting at $4.99 per month. EPA 608 Practice Tests asks for nothing beyond the download.

HVAC Flashcards ships an update every 17 months, EPA 608 Practice Tests every 23 months. The most recent releases landed on October 23, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | HVAC Flashcards | EPA 608 Practice Tests |
| --- | --- | --- |
| Price | **Free** | $8.99 |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/hvac-flashcards/id584270271/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 17 months** | Every 23 months |
| Monetization | Subscription | — |
| Size | 16 MB | 61 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mau Nguyen](https://appshunter.io/developer/1004929499) | [Adnan Sheikh](https://appshunter.io/developer/478871268) |

## What reviewers say

### HVAC Flashcards

[App page](https://appshunter.io/ios/app/hvac-flashcards/id584270271)

This app helps users study effectively for HVAC exams using flashcards. It offers various learning modes and tracks study progress with a review schedule. Users can customize flashcards and study offline.

**Highlights:** 1000+ premade flashcards, Multiple learning modes (Quiz, Matching, etc.), Leitner system for study progress tracking, Offline study with unlimited downloads, Customizable flashcard appearance, Text-to-speech functionality

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $4.99 | per month |


### EPA 608 Practice Tests

[App page](https://appshunter.io/ios/app/epa-608-practice-tests/id1532600061)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Flashcards free?

HVAC Flashcards is free to download, with in-app purchases available.

### Is EPA 608 Practice Tests free?

EPA 608 Practice Tests costs $8.99, with no in-app purchases.

### Do HVAC Flashcards or EPA 608 Practice Tests have ads?

Neither HVAC Flashcards nor EPA 608 Practice Tests shows ads.

### Which is updated more often, HVAC Flashcards or EPA 608 Practice Tests?

HVAC Flashcards ships an update every 17 months, and EPA 608 Practice Tests every 23 months. Most recently, HVAC Flashcards was updated on October 23, 2026 and EPA 608 Practice Tests on October 27, 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.*