# InspectorIQ vs CoolCalc

The clearest difference is rating: CoolCalc at 5.0 against InspectorIQ's 4.3. CoolCalc also leads on monetization model (free with in-app purchases vs subscription) and ads (none vs shown). InspectorIQ's advantage is update cadence (weekly vs every 2 weeks) and ratings volume (6 vs 1). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. InspectorIQ sells 1 in-app purchase, starting at $9.99 per month and CoolCalc sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

CoolCalc holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: InspectorIQ has 6 ratings behind it against 1, so its average is the more settled of the two.

InspectorIQ ships an update weekly, CoolCalc every 2 weeks. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | InspectorIQ | CoolCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/inspectoriq/id6759354095/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 2 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 32 MB | 30 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [InspectorIQ LLC](https://appshunter.io/developer/1878253986) | [杰 陈](https://appshunter.io/developer/1746018277) |

## What reviewers say

### InspectorIQ

[App page](https://appshunter.io/ios/app/inspectoriq/id6759354095)

Instantly identify HVAC and water heater equipment using your camera. This tool decodes serial numbers, offers AI-powered guidance for repairs, and suggests local professionals, saving you valuable time in the field.

**Highlights:** Camera-based serial number capture, HVAC serial number decoding, Water heater serial number decoding, AI equipment and repair guidance, Nearby professional recommendations, Scan history saving, Reduced manual lookup time

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| InspectorIQ Pro | $9.99 | per month |


### CoolCalc

[App page](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951)

This offline toolkit for service technicians provides essential HVAC calculations, job documentation, and professional PDF reporting. It supports A2L refrigerants and prioritizes user privacy with no account or cloud storage required.

**Highlights:** Offline HVAC calculations, PT Chart and Charge Check, Duct Sizing and Airflow Calcs, Capacitor and Refrigerant Log, Professional PDF report generation, A2L refrigerant support, Privacy-focused, no account needed

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CoolCalc Pro Monthly | $4.99 | per month |
| CoolCalc Pro Yearly | $19.99 | per year |
| CoolCalc Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is InspectorIQ free?

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

### Is CoolCalc free?

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

### Which has better reviews, InspectorIQ or CoolCalc?

CoolCalc is rated higher. InspectorIQ averages 4.3 out of 5 from 6 ratings, while CoolCalc averages 5.0 from 1 ratings.

### Do InspectorIQ or CoolCalc have ads?

InspectorIQ shows ads; CoolCalc does not.

### Which is updated more often, InspectorIQ or CoolCalc?

InspectorIQ ships an update weekly, and CoolCalc every 2 weeks. Most recently, InspectorIQ was updated on October 28, 2026 and CoolCalc on October 31, 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.*