# F vs HVAC Super Tech

The clearest difference is price: HVAC Super Tech at Free against F's $2.99. HVAC Super Tech also leads on review sentiment (100% vs 88%). F's advantage is iOS requirement (12.0 vs 16.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

HVAC Super Tech is free to download; F costs $2.99 up front. F sells 4 one-off in-app purchases and HVAC Super Tech sells 3 in-app purchases, starting at $29.99 per month. Whichever you choose, the download price is not the number that matters.

F ships an update every 4 weeks, HVAC Super Tech fortnightly. The most recent releases landed on October 13, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | F | HVAC Super Tech |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/hvac-super-tech/id6744416563/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 87.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | **Paid** | Subscription |
| Size | 30 MB | 21 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Radu Dominte](https://appshunter.io/developer/1242111237) | [BUILDING SOLUTIONS TECHNICAL SERVICES LLC](https://appshunter.io/developer/1807618125) |

## What reviewers say

### F

[App page](https://appshunter.io/ios/app/f-gas-tool/id1242111238)

This tool calculates the Global Warming Potential (GWP) of greenhouse gases, aiding compliance with EU regulations. It helps track gas inventory, calculate leak detection frequency, and manage gas phase-out and retrofitting. The app also provides gas composition and flammability data.

**Highlights:** GWP calculation for greenhouse gases, Leak detection frequency calculation, Gas phase-out and retrofit management, Cloud-based Gas Manager for inventory tracking, Gas composition and flammability data, Supports multiple languages

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ads Removal | $0.99 | one-time |
| +30 Gas Insertions | $0.99 | one-time |
| +60 Gas Insertions | $1.99 | one-time |
| +120 Gas Insertions | $3.99 | one-time |


### HVAC Super Tech

[App page](https://appshunter.io/ios/app/hvac-super-tech/id6744416563)

This app provides certified-level HVAC technical support, offering fast troubleshooting for error codes and system faults. It features smart image analysis for diagrams and hands-free voice assistance for technicians.

**Highlights:** Fast error code diagnosis, System fault analysis, Image analysis of diagrams, Hands-free voice commands, 24/7 technical support, All manufacturer brands supported

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Level-Monthly Subscription | $29.99 | per month |
| Pro Level-Yearly Subscription | $199.99 | per year |
| Part Timer-30 Day Access | $49.99 | one-time |


## Frequently asked questions

### Is F free?

F costs $2.99, and also offers in-app purchases.

### Is HVAC Super Tech free?

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

### Do F or HVAC Super Tech have ads?

Neither F nor HVAC Super Tech shows ads.

### Which is updated more often, F or HVAC Super Tech?

F ships an update every 4 weeks, and HVAC Super Tech fortnightly. Most recently, F was updated on October 13, 2026 and HVAC Super Tech on October 21, 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.*