# Parallel vs HVAC Tools PT Chart

The clearest difference is in-app purchases: Parallel at none against HVAC Tools PT Chart's 3. Parallel also leads on iOS requirement (8.0 vs 18). On price, ads and device support there is nothing between them.

Both are free to download. HVAC Tools PT Chart sells 3 in-app purchases, starting at $4.99 per month. Parallel asks for nothing beyond the download.

## The numbers

| Metric | Parallel | HVAC Tools PT Chart |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 months |
| Size | 10 MB | 9 MB |
| Requires iOS | **8.0** | 18 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Omar Al-Ejel](https://appshunter.io/developer/926151354) | [Karol Jaworski](https://appshunter.io/developer/1799974477) |

## What reviewers say

### Parallel

[App page](https://appshunter.io/ios/app/parallel-positioning-and-alignment-tool/id1135085138)

**Features:** macOS Compatibility

**In-app purchases:** none


### HVAC Tools PT Chart

[App page](https://appshunter.io/ios/app/hvac-tools-pt-chart-gauge/id6760602879)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gauge Pro | $4.99 | per month |
| Gauge Pro | $39.99 | per year |
| Gauge Pro | $39.99 | per year |


## Frequently asked questions

### Is Parallel free?

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

### Is HVAC Tools PT Chart free?

HVAC Tools PT Chart is free to download, with in-app purchases available.

### Do Parallel or HVAC Tools PT Chart have ads?

Neither Parallel nor HVAC Tools PT Chart 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.*