# AIDC FM vs HVAC PT Chart Toolkit

The clearest difference is price: AIDC FM at Free against HVAC PT Chart Toolkit's $3.99. On ads, in-app purchases, device support and iOS requirement there is nothing between them.

AIDC FM is free to download; HVAC PT Chart Toolkit costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | AIDC FM | HVAC PT Chart Toolkit |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | — |
| Size | 22 MB | 3 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [远儒 易](https://appshunter.io/developer/1800987473) | [润强 何](https://appshunter.io/developer/1821337209) |

## What reviewers say

### AIDC FM

[App page](https://appshunter.io/ios/app/aidc-fm-data-center-ops/id6744644168)

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

**In-app purchases:** none


### HVAC PT Chart Toolkit

[App page](https://appshunter.io/ios/app/hvac-pt-chart-toolkit/id6770447697)

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

**In-app purchases:** none


## Frequently asked questions

### Is AIDC FM free?

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

### Is HVAC PT Chart Toolkit free?

HVAC PT Chart Toolkit costs $3.99, with no in-app purchases.

### Do AIDC FM or HVAC PT Chart Toolkit have ads?

Neither AIDC FM nor HVAC PT Chart Toolkit 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.*