# Study Guide Pro vs Contactor

The clearest difference is review sentiment: Contactor at 100% against Study Guide Pro's 0%. Contactor also leads on price (Free vs $2.99) and rating (5.0 vs 4.0). Study Guide Pro's advantage is in-app purchases (none vs 2) and update cadence (every 2 months vs every 7 months). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Contactor is free to download; Study Guide Pro costs $2.99 up front. Contactor sells 2 in-app purchases, starting at $9.99 per month. Study Guide Pro asks for nothing beyond the download.

Contactor holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 0% of Study Guide Pro's written reviews are positive against 100% of Contactor's.

Study Guide Pro ships an update every 2 months, Contactor every 7 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Study Guide Pro | Contactor |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/study-guide-pro/id916066498/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/contactor-hvac-tools-and-prices/id6739550019/reviews)** |
| Number of ratings | 2 | 2 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 7 months |
| Monetization | **Paid** | Subscription |
| Size | 2 MB | 107 MB |
| Requires iOS | 15.6 | **15.0.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pablo Arista](https://appshunter.io/developer/912273635) | [DECODATION](https://appshunter.io/developer/1677960582) |

## 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


### Contactor

[App page](https://appshunter.io/ios/app/contactor-hvac-tools-and-prices/id6739550019)

This app connects HVAC technicians with local suppliers, offering real-time refrigerant pricing, appointment booking, and a community forum. It streamlines daily tasks for professionals by providing essential tools and information in one place.

**Highlights:** Live refrigerant pricing lookup, Supplier map & contact profiles, Easy appointment scheduling, HVAC technician forum, Tools, reminders & calculators

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contactor HVAC App: Monthly | $9.99 | per month |
| Contactor HVAC App: Annual | $59.99 | per year |


## Frequently asked questions

### Is Study Guide Pro free?

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

### Is Contactor free?

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

### Which has better reviews, Study Guide Pro or Contactor?

Contactor is rated higher. Study Guide Pro averages 4.0 out of 5 from 2 ratings, while Contactor averages 5.0 from 2 ratings.

### Do Study Guide Pro or Contactor have ads?

Neither Study Guide Pro nor Contactor shows ads.

### Which is updated more often, Study Guide Pro or Contactor?

Study Guide Pro ships an update every 2 months, and Contactor every 7 months. Most recently, Study Guide Pro was updated on November 1, 2026 and Contactor on November 4, 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.*