# TrueFlow HVAC Air Flow vs NHCA Repair or Replace Guide

The clearest difference is iOS requirement: NHCA Repair or Replace Guide at 11.0 against TrueFlow HVAC Air Flow's 15.0. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | TrueFlow HVAC Air Flow | NHCA Repair or Replace Guide |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/trueflow-hvac-air-flow/id1518628173/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Monetization | Free | — |
| Size | 129 MB | 24 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [The Energy Conservatory](https://appshunter.io/developer/504703668) | [Bizzoom - Praxis Holdings, Inc](https://appshunter.io/developer/1673857847) |

## What reviewers say

### TrueFlow HVAC Air Flow

[App page](https://appshunter.io/ios/app/trueflow-hvac-air-flow/id1518628173)

This tool offers a simple and accurate way to measure airflow through residential air handlers. It provides direct CFM readings quickly, without complex calculations. Designed for ease of use in various air handler configurations.

**Highlights:** Accurate airflow measurement, Direct CFM readings, Fast 2-3 minute readings, Easy field use, Wide range of configurations, Replaces air filter for measurement

**Features:** Vision Pro support

**In-app purchases:** none


### NHCA Repair or Replace Guide

[App page](https://appshunter.io/ios/app/nhca-repair-or-replace-guide/id6445801329)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TrueFlow HVAC Air Flow free?

TrueFlow HVAC Air Flow is free to download, with no in-app purchases.

### Is NHCA Repair or Replace Guide free?

NHCA Repair or Replace Guide is free to download, with no in-app purchases.

### Do TrueFlow HVAC Air Flow or NHCA Repair or Replace Guide have ads?

Neither TrueFlow HVAC Air Flow nor NHCA Repair or Replace Guide shows ads.

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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.*