# HVAC Toolkit Lite vs LYNKUP

The clearest difference is update cadence: HVAC Toolkit Lite at every 11 days against LYNKUP's every 2 months. HVAC Toolkit Lite also leads on iOS requirement (12.0 vs 15.1). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for HVAC Toolkit Lite against 5.0 for LYNKUP. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

HVAC Toolkit Lite ships an update every 11 days, LYNKUP every 2 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | HVAC Toolkit Lite | LYNKUP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/hvac-toolkit-lite/id1628371325/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/lynkup/id6752913889/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 61 MB | 165 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mohamad Jaber](https://appshunter.io/developer/1623246777) | [LYNKUP, LLC](https://appshunter.io/developer/1841731379) |

## 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


### LYNKUP

[App page](https://appshunter.io/ios/app/lynkup/id6752913889)

This voice-first assistant helps HVAC technicians troubleshoot issues hands-free using AI. It allows live streaming of tool data and offers direct support sessions with video and chat. Recorded sessions with transcripts are available for review and job management.

**Highlights:** Voice-activated AI troubleshooting, Live Bluetooth tool data streaming, Video, chat, and shared tool data support sessions, Recorded sessions with transcripts, Job history review and filtering, Account, tool, and billing management

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is HVAC Toolkit Lite free?

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

### Is LYNKUP free?

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

### Which has better reviews, HVAC Toolkit Lite or LYNKUP?

HVAC Toolkit Lite and LYNKUP are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

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

Neither HVAC Toolkit Lite nor LYNKUP shows ads.

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

HVAC Toolkit Lite ships an update every 11 days, and LYNKUP every 2 months. Most recently, HVAC Toolkit Lite was updated on October 30, 2026 and LYNKUP on October 30, 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.*