# Field Audio Recording Tool vs CoolCalc

The clearest difference is in-app purchases: Field Audio Recording Tool at none against CoolCalc's 3. Field Audio Recording Tool also leads on update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Field Audio Recording Tool against 5.0 for CoolCalc. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Field Audio Recording Tool ships an update every 5 days, CoolCalc every 2 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Field Audio Recording Tool | CoolCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/field-audio-recording-tool/id6753672838/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/coolcalc-hvac-tools/id6773545951/reviews) |
| Number of ratings | **2** | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 59 MB | 30 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 9+ | 4+ |
| Developer | [Troy Gustafson](https://appshunter.io/developer/633226131) | [杰 陈](https://appshunter.io/developer/1746018277) |

## What reviewers say

### Field Audio Recording Tool

[App page](https://appshunter.io/ios/app/field-audio-recording-tool/id6753672838)

This utility app allows for quick audio capture on iOS devices. It is designed to start recording immediately upon launch, ensuring no sound is missed. Ideal for capturing spontaneous audio moments.

**Highlights:** Rapid recording on app launch, Capture fleeting sound moments, iOS compatible, Simple interface

**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 Field Audio Recording Tool free?

Field Audio Recording Tool 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, Field Audio Recording Tool or CoolCalc?

Field Audio Recording Tool and CoolCalc are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Field Audio Recording Tool or CoolCalc have ads?

Neither Field Audio Recording Tool nor CoolCalc shows ads.

### Which is updated more often, Field Audio Recording Tool or CoolCalc?

Field Audio Recording Tool ships an update every 5 days, and CoolCalc every 2 weeks. Most recently, Field Audio Recording Tool was updated on October 30, 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.*