# AirOApp by Mega Plast vs Sunnova Catalyst

AirOApp by Mega Plast and Sunnova Catalyst are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

AirOApp by Mega Plast ships an update every 4 weeks, Sunnova Catalyst fortnightly. The most recent releases landed on September 23, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | AirOApp by Mega Plast | Sunnova Catalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (43 ratings)](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662/reviews)** |
| Number of ratings | — | **43** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Fortnightly** |
| Monetization | — | Free |
| Size | 15 MB | 73 MB |
| Requires iOS | **13.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ProgressNet](https://appshunter.io/developer/1509775083) | [Sunnova Energy Corp](https://appshunter.io/developer/1435520898) |

## What reviewers say

### AirOApp by Mega Plast

[App page](https://appshunter.io/ios/app/airoapp-by-mega-plast/id1593610029)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sunnova Catalyst

[App page](https://appshunter.io/ios/app/sunnova-catalyst/id1664577662)

This app simplifies the solar installation review process by allowing users to capture and track commissioning photos. It streamlines the workflow for solar professionals.

**Highlights:** Streamlines commissioning process, Capture commissioning photos, Track solar installation review, Solar professional workflow optimization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AirOApp by Mega Plast free?

AirOApp by Mega Plast is free to download, with no in-app purchases.

### Is Sunnova Catalyst free?

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

### Do AirOApp by Mega Plast or Sunnova Catalyst have ads?

Neither AirOApp by Mega Plast nor Sunnova Catalyst shows ads.

### Which is updated more often, AirOApp by Mega Plast or Sunnova Catalyst?

AirOApp by Mega Plast ships an update every 4 weeks, and Sunnova Catalyst fortnightly. Most recently, AirOApp by Mega Plast was updated on September 23, 2026 and Sunnova Catalyst on June 2, 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.*