# HVAC Know It All vs COFC

The clearest difference is in-app purchases: COFC at none against HVAC Know It All's 2. COFC also leads on iOS requirement (13.4 vs 17.0). On price there is nothing between them.

Both are free to download. HVAC Know It All sells 2 in-app purchases, starting at $0.99 per month. COFC asks for nothing beyond the download.

## The numbers

| Metric | HVAC Know It All | COFC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (224 ratings)](https://appshunter.io/ios/app/hvac-know-it-all/id1548260016/reviews)** | — |
| Number of ratings | **224** | — |
| Positive reviews | 83.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 6 months | — |
| Monetization | Subscription | — |
| Size | 67 MB | 49 MB |
| Requires iOS | 17.0 | **13.4** |
| Devices | **iPhone** | — |
| Age rating | 17+ | 4+ |
| Developer | [HVAC Know It All Inc.](https://appshunter.io/developer/1548260018) | [Calvary Outreach Fellowship Center INC](https://appshunter.io/developer/1690266411) |

## What reviewers say

### HVAC Know It All

[App page](https://appshunter.io/ios/app/hvac-know-it-all/id1548260016)

Connect with HVAC/R professionals to enhance your skills through educational discussions. This app aims to help technicians, installers, owners, educators, and students improve their expertise in the trade.

**Highlights:** Educational discussions, Professional networking, Skill enhancement, Trade knowledge sharing, Technician resources

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $9.99 | per year |

**What reviewers like**

- 👍 Excellent community for tradespeople
- 💡 Vast knowledge sharing among professionals
- 🚀 Game-changer for HVAC technicians
- 🤝 Supportive and non-judgmental environment
- 📚 Great resource for learning and growth

**What reviewers complain about**

- 💰 Forced to pay before accessing content
- 🤔 Subscription fee not clearly stated upfront
- 🚫 App makes you pay before you can test it
- 📉 Limited content in residential group
- ❓ Suspect 5-star reviews, potentially fake

**Requested features**

- More content for the residential group


### COFC

[App page](https://appshunter.io/ios/app/cofc/id6449722509)

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Know It All free?

HVAC Know It All is free to download, with in-app purchases available.

### Is COFC free?

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

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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.*