Rada AP1 vs IN HVAC Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rada AP1
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The Rada AP1 App is designed for use with the Rada MX1 Tap product range. The App offers the user an extensive range of features and functionality. Easily control temperature and flush scheduling via the simple user friendly interface. Downloading stored data, configuration and fault finding.
IN HVAC Calculator
This app provides HVAC inspection tools and guidelines for home inspectors. It helps estimate equipment age, size, and requirements, giving inspectors confidence in their reports.
- Equipment circuit requirements calculator
- AC tonnage estimation by model number
- HVAC manufacture date lookup
- Combustion air requirements guide
- General HVAC reference information
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Inspector Nation presents a general reference application to provide insight into the world of HVAC equipment inspection. It is never good practice to mention the exact age or tonnage rating in the home inspection report, but having a reference point of age and size gives the home inspector confidence to map out the inspection and set the tone for the report. This application will aid the inspector by providing several HVAC-related inspection calculators as well as guidelines for approximate values for (1) equipment circuit requirements, (2) air conditioner tonnage based on the model number, (3) HVAC manufacture date, and (4) combustion air requirements. Contact us if you'd like to request a feature for a future release!
Screenshots
Verdict
The clearest difference is device support: IN HVAC Calculator at 3 against Rada AP1's 1. IN HVAC Calculator also leads on iOS requirement (12.0 vs 15.6). On price, update cadence, ads and in-app purchases 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.
Rada AP1 ships an update every 7 months, IN HVAC Calculator every 6 months. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.
| Parameter | Rada AP1 | IN HVAC Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.1 (10 ratings) — better |
| Number of ratings | — | 10 — better |
| Update frequency | Every 7 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Kohler Mira Ltd. | Gregory Enterprises |
In-app purchases
Rada AP1
No in-app purchases
IN HVAC Calculator
No in-app purchases
Questions
Is Rada AP1 free?
Is IN HVAC Calculator free?
Do Rada AP1 or IN HVAC Calculator have ads?
Which is updated more often, Rada AP1 or IN HVAC Calculator?
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