# SPIE Conferences vs AIAA Events

The clearest difference is review sentiment: AIAA Events at 100% against SPIE Conferences's 25%. AIAA Events also leads on rating (5.0 vs 3.8) and iOS requirement (12.0 vs 14.0). SPIE Conferences's advantage is update cadence (every 3 weeks vs every 3 months). On price, ratings volume, 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.

AIAA Events holds the better App Store score, 5.0 against 3.8. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 25% of SPIE Conferences's written reviews are positive against 100% of AIAA Events's.

SPIE Conferences ships an update every 3 weeks, AIAA Events every 3 months. The most recent releases landed on November 6, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | SPIE Conferences | AIAA Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.8 (9 ratings)](https://appshunter.io/ios/app/spie-conferences/id349678364/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/aiaa-events/id6473545270/reviews)** |
| Number of ratings | **9** | 4 |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Ad-supported | Ad-supported |
| Size | 143 MB | 49 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SPIE](https://appshunter.io/developer/349678367) | [American Institute of Aeronautics and Astronautics Inc.](https://appshunter.io/developer/624485193) |

## What reviewers say

### SPIE Conferences

[App page](https://appshunter.io/ios/app/spie-conferences/id349678364)

Access comprehensive program and exhibition guides for all SPIE conferences and events. Organize your schedule, take notes, and find exhibitors with interactive floor plans. Stay informed about upcoming sessions and connect with the optics and photonics community.

**Highlights:** Complete conference programs, Sync schedule between devices, Event reminders, Add notes to events and exhibitors, Search and filter options, Venue floor plans

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

**In-app purchases:** none


### AIAA Events

[App page](https://appshunter.io/ios/app/aiaa-events/id6473545270)

This native app provides a comprehensive guide for managing conference attendance. Access the full program, schedule, and exhibitor information offline. Stay updated on event changes and organizer messages.

**Highlights:** Offline access to program and schedule, Manage conference attendance, View event program and session handouts, Access exhibitor information, Receive organizer messages, Stay informed on program changes

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

**In-app purchases:** none


## Frequently asked questions

### Is SPIE Conferences free?

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

### Is AIAA Events free?

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

### Which has better reviews, SPIE Conferences or AIAA Events?

AIAA Events is rated higher. SPIE Conferences averages 3.8 out of 5 from 9 ratings, while AIAA Events averages 5.0 from 4 ratings.

### Do SPIE Conferences or AIAA Events have ads?

Neither SPIE Conferences nor AIAA Events shows ads.

### Which is updated more often, SPIE Conferences or AIAA Events?

SPIE Conferences ships an update every 3 weeks, and AIAA Events every 3 months. Most recently, SPIE Conferences was updated on November 6, 2026 and AIAA Events on November 4, 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.*