# electripet vs Airflow CFM Calc HVAC

The clearest difference is price: electripet at Free against Airflow CFM Calc HVAC's $0.99. electripet also leads on in-app purchases (none vs 1) and ads (none vs shown). Airflow CFM Calc HVAC's advantage is update cadence (fortnightly vs every 8 months) and iOS requirement (13.0 vs 16.6). On device support there is nothing between them.

electripet is free to download; Airflow CFM Calc HVAC costs $0.99 up front. Airflow CFM Calc HVAC sells 1 one-off in-app purchase. electripet asks for nothing beyond the download.

electripet ships an update every 8 months, Airflow CFM Calc HVAC fortnightly. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | electripet | Airflow CFM Calc HVAC |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Fortnightly** |
| Size | 14 MB | 30 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [tarazon](https://appshunter.io/developer/1773275489) | [Rizvan Adzhoian](https://appshunter.io/developer/1891746079) |

## What reviewers say

### electripet

[App page](https://appshunter.io/ios/app/electripet/id6736761755)

**In-app purchases:** none


### Airflow CFM Calc HVAC

[App page](https://appshunter.io/ios/app/airflow-cfm-calc-hvac/id6764647262)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Unlock | $2.99 | one-time |


## Frequently asked questions

### Is electripet free?

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

### Is Airflow CFM Calc HVAC free?

Airflow CFM Calc HVAC costs $0.99, and also offers in-app purchases.

### Do electripet or Airflow CFM Calc HVAC have ads?

Airflow CFM Calc HVAC shows ads; electripet does not.

### Which is updated more often, electripet or Airflow CFM Calc HVAC?

electripet ships an update every 8 months, and Airflow CFM Calc HVAC fortnightly. Most recently, electripet was updated on October 27, 2026 and Airflow CFM Calc HVAC 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.*