# HVAC School vs Interplay Learning

The clearest difference is review sentiment: HVAC School at 83% against Interplay Learning's 27%. HVAC School also leads on rating (4.8 vs 3.9) and in-app purchases (none vs 1). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Interplay Learning sells 1 in-app purchase, starting at $54.00 per month. HVAC School asks for nothing beyond the download.

HVAC School holds the better App Store score, 4.8 against 3.9. Both are backed by a comparable volume of ratings — 81 and 48 respectively. Written reviews point the same way: 83% of HVAC School's written reviews are positive against 27% of Interplay Learning's.

HVAC School ships an update monthly, Interplay Learning every 2 months. The most recent releases landed on July 6, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | HVAC School | Interplay Learning |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (81 ratings)](https://appshunter.io/ios/app/hvac-school/id1436085954/reviews)** | [3.9 (48 ratings)](https://appshunter.io/ios/app/interplay-learning/id1465704946/reviews) |
| Number of ratings | **81** | 48 |
| Positive reviews | **82.8% of reviews** | 26.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | **Free** | Subscription |
| Size | 30 MB | 135 MB |
| Requires iOS | **13.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kalos Services Inc.](https://appshunter.io/developer/1435107751) | [Interplay Learning Inc.](https://appshunter.io/developer/661131444) |

## What reviewers say

### HVAC School

[App page](https://appshunter.io/ios/app/hvac-school/id1436085954)

This app serves as a comprehensive resource for HVAC technicians, offering a podcast, tech tip articles, and interactive calculators. It aims to enhance knowledge of HVAC theory, industry updates, and essential mathematics for both current and aspiring professionals.

**Highlights:** HVAC School podcast episodes, Tech tip articles by professionals, Interactive HVAC equation calculators, Industry knowledge and theory, Up-to-date industry information

**Features:** macOS Compatibility

**In-app purchases:** none


### Interplay Learning

[App page](https://appshunter.io/ios/app/interplay-learning/id1465704946)

This platform offers subscription-based training for skilled trades, creating job-ready workers and upskilling existing ones. Access hundreds of hours of expert-led content in HVAC, plumbing, electrical, and more, with on-demand assessments to track progress.

**Highlights:** Expert-led training content, On-demand assessments, Certification exam prep, Bite-sized training videos, Progress tracking, Anytime, anywhere access

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Monthly | $54.00 | per month |


## Frequently asked questions

### Is HVAC School free?

HVAC School is free to download, with no in-app purchases.

### Is Interplay Learning free?

Interplay Learning is free to download, with in-app purchases available.

### Which has better reviews, HVAC School or Interplay Learning?

HVAC School is rated higher. HVAC School averages 4.8 out of 5 from 81 ratings, while Interplay Learning averages 3.9 from 48 ratings.

### Do HVAC School or Interplay Learning have ads?

Neither HVAC School nor Interplay Learning shows ads.

### Which is updated more often, HVAC School or Interplay Learning?

HVAC School ships an update monthly, and Interplay Learning every 2 months. Most recently, HVAC School was updated on July 6, 2026 and Interplay Learning on September 9, 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.*