# PLTW Events vs AirSystem Solutions

The clearest difference is in-app purchases: PLTW Events at none against AirSystem Solutions's 2. AirSystem Solutions's advantage is update cadence (every 3 days vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. AirSystem Solutions sells 2 in-app purchases, starting at $14.99 per month. PLTW Events asks for nothing beyond the download.

PLTW Events ships an update every 3 months, AirSystem Solutions every 3 days. The most recent releases landed on October 18, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | PLTW Events | AirSystem Solutions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/airsystem-solutions/id6809043486/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | — | Free |
| Size | 60 MB | 37 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Project Lead The Way](https://appshunter.io/developer/1439603753) | [Moore Managed IT, Inc.](https://appshunter.io/developer/6809043488) |

## What reviewers say

### PLTW Events

[App page](https://appshunter.io/ios/app/pltw-events/id6615060807)

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

**In-app purchases:** none


### AirSystem Solutions

[App page](https://appshunter.io/ios/app/airsystem-solutions/id6809043486)

Manage, troubleshoot, and design compressed-air systems with this comprehensive platform. Organize equipment, track maintenance, and streamline sales processes for professionals in the compressed-air industry.

**Highlights:** Guided troubleshooting for air compressors and dryers, Organize equipment by site with details and history, System design recommendations, Preventive maintenance scheduling, Work order management, Sales tools for site surveys and opportunity management

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro | $14.99 | per month |
| Sales Pro | $29.99 | per month |


## Frequently asked questions

### Is PLTW Events free?

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

### Is AirSystem Solutions free?

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

### Do PLTW Events or AirSystem Solutions have ads?

Neither PLTW Events nor AirSystem Solutions shows ads.

### Which is updated more often, PLTW Events or AirSystem Solutions?

PLTW Events ships an update every 3 months, and AirSystem Solutions every 3 days. Most recently, PLTW Events was updated on October 18, 2026 and AirSystem Solutions on October 11, 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.*