# Study Guide Pro vs Acme HVAC Pro+

The clearest difference is price: Acme HVAC Pro+ at Free against Study Guide Pro's $2.99. Acme HVAC Pro+ also leads on rating (5.0 vs 4.0) and ratings volume (12 vs 2). Study Guide Pro's advantage is device support (4 vs 2). On update cadence, ads, in-app purchases and iOS requirement there is nothing between them.

Acme HVAC Pro+ is free to download; Study Guide Pro costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Acme HVAC Pro+ holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Acme HVAC Pro+ has 12 ratings behind it against 2, so its average is the more settled of the two.

Study Guide Pro ships an update every 2 months, Acme HVAC Pro+ every 6 weeks. The most recent releases landed on October 15, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Study Guide Pro | Acme HVAC Pro+ |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/study-guide-pro/id916066498/reviews) | **[5.0 (12 ratings)](https://appshunter.io/ios/app/acme-hvac-pro-plus/id1596967034/reviews)** |
| Number of ratings | 2 | **12** |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Paid | **Ad-supported** |
| Size | 2 MB | 165 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pablo Arista](https://appshunter.io/developer/912273635) | [Watsco, Inc.](https://appshunter.io/developer/510378878) |

## What reviewers say

### Study Guide Pro

[App page](https://appshunter.io/ios/app/study-guide-pro/id916066498)

Create and review custom study guides for any subject. Organize questions and answers, randomize them for practice, and access your guides on your Apple Watch. Perfect for preparing for quizzes, tests, and certifications.

**Highlights:** Create custom study guides, Add questions and answers, Randomize question order, Create multiple guides, Edit existing entries, Apple Watch integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Acme HVAC Pro+

[App page](https://appshunter.io/ios/app/acme-hvac-pro-plus/id1596967034)

Access product information, pricing, and order status. Find locations, search equipment, and submit warranty claims. Connect with technical support and manage inventory.

**Highlights:** View pricing and order status, Find locations and get directions, Search equipment and parts, Verify warranty registrations, Access spec sheets and diagrams, Live technical support chat, Inventory replenishment tool

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

**In-app purchases:** none


## Frequently asked questions

### Is Study Guide Pro free?

Study Guide Pro costs $2.99, with no in-app purchases.

### Is Acme HVAC Pro+ free?

Acme HVAC Pro+ is free to download, with no in-app purchases.

### Which has better reviews, Study Guide Pro or Acme HVAC Pro+?

Acme HVAC Pro+ is rated higher. Study Guide Pro averages 4.0 out of 5 from 2 ratings, while Acme HVAC Pro+ averages 5.0 from 12 ratings.

### Do Study Guide Pro or Acme HVAC Pro+ have ads?

Neither Study Guide Pro nor Acme HVAC Pro+ shows ads.

### Which is updated more often, Study Guide Pro or Acme HVAC Pro+?

Study Guide Pro ships an update every 2 months, and Acme HVAC Pro+ every 6 weeks. Most recently, Study Guide Pro was updated on October 15, 2026 and Acme HVAC Pro+ on October 5, 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.*