# USA Events vs Curtiss

The clearest difference is update cadence: Curtiss at every 5 weeks against USA Events's every 4 months. Curtiss also leads on iOS requirement (12.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for USA Events against 5.0 for Curtiss. Both are backed by a comparable volume of ratings — 3 and 7 respectively.

USA Events ships an update every 4 months, Curtiss every 5 weeks. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | USA Events | Curtiss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/usa-events/id1405129550/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/curtiss-wright-ar/id1493970861/reviews) |
| Number of ratings | 3 | **7** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 75 MB | 299 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Utilities Service Alliance (USA)](https://appshunter.io/developer/1181142870) | [Curtiss-Wright](https://appshunter.io/developer/833840895) |

## What reviewers say

### USA Events

[App page](https://appshunter.io/ios/app/usa-events/id1405129550)

This app provides essential information for attendees of Utilities Service Alliance Conferences. It serves as a guide to conference schedules, speaker details, networking tools, and presentation materials, enhancing the conference experience.

**Highlights:** Conference schedules, Speaker information, Attendee networking tools, Presentation documents, Surveys

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

**In-app purchases:** none


### Curtiss

[App page](https://appshunter.io/ios/app/curtiss-wright-ar/id1493970861)

Explore nuclear valves in 3D using augmented reality. View detailed exploded diagrams, identify individual parts with a bill of materials, and visualize fluid flow to understand valve functionality.

**Highlights:** Augmented reality valve visualization, 360-degree exploration, Exploded view of components, Bill of materials for parts, Fluid flow simulation

**In-app purchases:** none


## Frequently asked questions

### Is USA Events free?

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

### Is Curtiss free?

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

### Which has better reviews, USA Events or Curtiss?

USA Events and Curtiss are both rated 5.0 out of 5 on the App Store, from 3 and 7 ratings respectively.

### Do USA Events or Curtiss have ads?

Neither USA Events nor Curtiss shows ads.

### Which is updated more often, USA Events or Curtiss?

USA Events ships an update every 4 months, and Curtiss every 5 weeks. Most recently, USA Events was updated on October 22, 2026 and Curtiss on October 24, 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.*