# NEI Events vs Curtiss

The clearest difference is update cadence: Curtiss at every 5 weeks against NEI Events's every 3 months. Curtiss also leads on ratings volume (7 vs 1) and iOS requirement (12.0 vs 17.0). On price, rating, ads and in-app purchases 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 NEI Events against 5.0 for Curtiss. That said, the two scores are not equally well evidenced: Curtiss has 7 ratings behind it against 1, so its average is the more settled of the two.

NEI Events ships an update every 3 months, Curtiss every 5 weeks. The most recent releases landed on June 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | NEI Events | Curtiss |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/nei-events/id1379868172/reviews) | [5.0 (7 ratings)](https://appshunter.io/ios/app/curtiss-wright-ar/id1493970861/reviews) |
| Number of ratings | 1 | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 67 MB | 299 MB |
| Requires iOS | 17.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nuclear Energy Institute, Inc.](https://appshunter.io/developer/854657810) | [Curtiss-Wright](https://appshunter.io/developer/833840895) |

## What reviewers say

### NEI Events

[App page](https://appshunter.io/ios/app/nei-events/id1379868172)

Access event schedules, speaker information, and session agendas for Nuclear Energy Institute events. Personalize your schedule, view handouts, and receive real-time updates to enhance your event experience.

**Highlights:** Event schedules, Speaker information, Session agendas, Sponsorship details, Exhibitor information, Real-time updates, Personalized schedule

**Features:** macOS Compatibility

**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 NEI Events free?

NEI 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, NEI Events or Curtiss?

NEI Events and Curtiss are both rated 5.0 out of 5 on the App Store, from 1 and 7 ratings respectively.

### Do NEI Events or Curtiss have ads?

Neither NEI Events nor Curtiss shows ads.

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

NEI Events ships an update every 3 months, and Curtiss every 5 weeks. Most recently, NEI Events was updated on June 23, 2026 and Curtiss on September 12, 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.*