HVAC Toolkit Lite vs VRF Technician
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HVAC Toolkit Lite
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.
- Friction loss calculation
- Pipe sizing
- Ventilation calculations
- Heat load estimation
- Pump head calculation
- Fan ESP calculation
- Metric/Imperial units
- English/Arabic language support
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The HVAC ToolKit Lite is an easy-to-use app that has been created to assist HVAC engineers in checking their designs and making quick calculations and estimations. The app includes helpful calculation tools for calculating friction losses in ducting, pipe sizing, parking ventilation, staircase pressurization, and estimating heat loads, pump head, fan ESP, among others, where the user is able to enter the required inputs and is given the calculated output. Each tool also includes instructions and abbreviated formulas that have been used to calculate the results. The app can be set to metric or imperial units and/or to the English or Arabic language. Users are expected to have some knowledge and understanding of HVAC engineering in order to use the tools properly. Users are also expected to check that the results are within an acceptable range for their respective projects. If you come across any inconsistencies while using the app or have any recommendations for additional inclusions, please contact us.
VRF Technician
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Stay organized, work efficiently, and complete jobs faster with VRF Technician App, the all-in-one tool designed for technicians and field service professionals. Whether you're handling repairs, maintenance, or inspections, our app helps you stay on top of every task with ease.
Screenshots
Verdict
The clearest difference is update cadence: HVAC Toolkit Lite at every 11 days against VRF Technician's monthly. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HVAC Toolkit Lite ships an update every 11 days, VRF Technician monthly. The most recent releases landed on September 11, 2026 and October 7, 2026 respectively.
| Parameter | HVAC Toolkit Lite | VRF Technician |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 11 days — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 61 MB | 47 MB |
| Age rating | 4+ | 4+ |
| Developer | Mohamad Jaber | Suraj Pk |
In-app purchases
HVAC Toolkit Lite
No in-app purchases
VRF Technician
No in-app purchases
Questions
Is HVAC Toolkit Lite free?
Is VRF Technician free?
Do HVAC Toolkit Lite or VRF Technician have ads?
Which is updated more often, HVAC Toolkit Lite or VRF Technician?
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