# myNAVAC vs CoolCalc

The clearest difference is rating: CoolCalc at 5.0 against myNAVAC's 2.3. myNAVAC's advantage is in-app purchases (none vs 3) and ratings volume (35 vs 1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CoolCalc sells 3 in-app purchases, starting at $4.99 per month. myNAVAC asks for nothing beyond the download.

CoolCalc holds the better App Store score, 5.0 against 2.3. That said, the two scores are not equally well evidenced: myNAVAC has 35 ratings behind it against 1, so its average is the more settled of the two.

myNAVAC ships an update every 3 weeks, CoolCalc every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | myNAVAC | CoolCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.3 (35 ratings)](https://appshunter.io/ios/app/mynavac/id6459829747/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951/reviews)** |
| Number of ratings | **35** | 1 |
| Positive reviews | 16.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 137 MB | 30 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [NAVAC Inc.](https://appshunter.io/developer/1700369128) | [杰 陈](https://appshunter.io/developer/1746018277) |

## What reviewers say

### myNAVAC

[App page](https://appshunter.io/ios/app/mynavac/id6459829747)

Connect to and manage NAVAC brand IoT measurement devices via Bluetooth. View real-time data, control settings remotely, and record measurements. Analyze data with process curves and tables, then export reports in Excel or PDF.

**Highlights:** Bluetooth device connection, Real-time data display, Remote control and settings, Data recording and storage, Process curve and table view, Exportable measurement reports (Excel/PDF)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 myNAVAC free?

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

### Is CoolCalc free?

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

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

CoolCalc is rated higher. myNAVAC averages 2.3 out of 5 from 35 ratings, while CoolCalc averages 5.0 from 1 ratings.

### Do myNAVAC or CoolCalc have ads?

Neither myNAVAC nor CoolCalc shows ads.

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

myNAVAC ships an update every 3 weeks, and CoolCalc every 2 weeks. Most recently, myNAVAC was updated on October 24, 2026 and CoolCalc 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.*