# HVAC vs AirDial

The clearest difference is in-app purchases: HVAC at none against AirDial's 9. HVAC also leads on iOS requirement (8.0 vs 17.0). AirDial's advantage is update cadence (daily vs every 6 months). On price, ads and device support there is nothing between them.

Both are free to download. AirDial sells 9 one-off in-app purchases. HVAC asks for nothing beyond the download.

HVAC ships an update every 6 months, AirDial daily. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HVAC | AirDial |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Size | 12 MB | 3 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [乔 黄](https://appshunter.io/developer/1499744042) | [Roberto Chiarella](https://appshunter.io/developer/1205354915) |

## What reviewers say

### HVAC

[App page](https://appshunter.io/ios/app/hvac-control/id1338034298)

**Features:** macOS Compatibility

**In-app purchases:** none


### AirDial

[App page](https://appshunter.io/ios/app/airdial/id6822468442)

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-day Trial | Free | one-time |
| Timer and chart | $0.99 | one-time |
| Widgets | $1.99 | one-time |
| Dynamic Island | $1.99 | one-time |
| More air conditioners | $1.99 | one-time |
| iPhone Pack | $2.99 | one-time |
| Mac desktop | $2.99 | one-time |
| AirDial Pro | $3.99 | one-time |
| Mac Pack | $3.99 | one-time |


## Frequently asked questions

### Is HVAC free?

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

### Is AirDial free?

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

### Do HVAC or AirDial have ads?

Neither HVAC nor AirDial shows ads.

### Which is updated more often, HVAC or AirDial?

HVAC ships an update every 6 months, and AirDial daily. Most recently, HVAC was updated on October 26, 2026 and AirDial on October 24, 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.*