# HVAC Toolkit Lite vs EquipAI

The clearest difference is in-app purchases: HVAC Toolkit Lite at none against EquipAI's 2. HVAC Toolkit Lite also leads on iOS requirement (12.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. EquipAI sells 2 in-app purchases, starting at $0.99 per month. HVAC Toolkit Lite asks for nothing beyond the download.

HVAC Toolkit Lite ships an update every 11 days, EquipAI every 2 weeks. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | HVAC Toolkit Lite | EquipAI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-toolkit-lite/id1628371325/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 61 MB | 13 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mohamad Jaber](https://appshunter.io/developer/1623246777) | [Manoj Panicker](https://appshunter.io/developer/1873733373) |

## What reviewers say

### HVAC Toolkit Lite

[App page](https://appshunter.io/ios/app/hvac-toolkit-lite/id1628371325)

This tool assists HVAC engineers with design checks and quick calculations. It offers various tools for ducting friction loss, pipe sizing, ventilation, and heat load estimations, providing instructions and formulas for each calculation.

**Highlights:** Friction loss calculation, Pipe sizing, Ventilation calculations, Heat load estimation, Pump head calculation, Fan ESP calculation, Metric/Imperial units, English/Arabic language support

**Features:** macOS Compatibility

**In-app purchases:** none


### EquipAI

[App page](https://appshunter.io/ios/app/equipai/id6758571806)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| EquipAI Pro – Monthly | $0.99 | per month |
| EquipAI Pro – Annual | $9.99 | per year |


## Frequently asked questions

### Is HVAC Toolkit Lite free?

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

### Is EquipAI free?

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

### Do HVAC Toolkit Lite or EquipAI have ads?

Neither HVAC Toolkit Lite nor EquipAI shows ads.

### Which is updated more often, HVAC Toolkit Lite or EquipAI?

HVAC Toolkit Lite ships an update every 11 days, and EquipAI every 2 weeks. Most recently, HVAC Toolkit Lite was updated on November 3, 2026 and EquipAI on October 28, 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.*