# Houston Shock Symposium vs PHA Events

The clearest difference is update cadence: PHA Events at fortnightly against Houston Shock Symposium's every 10 months. Houston Shock Symposium's advantage is ratings volume (11 vs 1) and iOS requirement (15.5 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.

PHA Events holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Houston Shock Symposium has 11 ratings behind it against 1, so its average is the more settled of the two.

Houston Shock Symposium ships an update every 10 months, PHA Events fortnightly. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Houston Shock Symposium | PHA Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (11 ratings)](https://appshunter.io/ios/app/houston-shock-symposium/id6742800294/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pha-events/id6746348301/reviews)** |
| Number of ratings | **11** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 106 MB | 54 MB |
| Requires iOS | **15.5** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Houston Shock Symposium](https://appshunter.io/developer/1733416423) | [Pulmonary Hypertension Association, inc.](https://appshunter.io/developer/926721461) |

## What reviewers say

### Houston Shock Symposium

[App page](https://appshunter.io/ios/app/houston-shock-symposium/id6742800294)

This event app provides attendees with access to presentations, exhibitors, and networking opportunities. Users can take notes and draw directly on presentation slides within the application.

**Highlights:** Access presentations, View exhibitors, Connect with attendees, Take notes on slides, Draw on presentation slides

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

**In-app purchases:** none


### PHA Events

[App page](https://appshunter.io/ios/app/pha-events/id6746348301)

Enhance your event experience with this official conference app. Personalize your schedule, take notes, and connect with other attendees. Access essential details about sessions, speakers, and exhibitors.

**Highlights:** Personalized agenda creation, Note-taking functionality, Attendee networking, Event session information, Speaker and exhibitor details

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Houston Shock Symposium free?

Houston Shock Symposium is free to download, with no in-app purchases.

### Is PHA Events free?

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

### Which has better reviews, Houston Shock Symposium or PHA Events?

PHA Events is rated higher. Houston Shock Symposium averages 4.8 out of 5 from 11 ratings, while PHA Events averages 5.0 from 1 ratings.

### Do Houston Shock Symposium or PHA Events have ads?

Neither Houston Shock Symposium nor PHA Events shows ads.

### Which is updated more often, Houston Shock Symposium or PHA Events?

Houston Shock Symposium ships an update every 10 months, and PHA Events fortnightly. Most recently, Houston Shock Symposium was updated on October 25, 2026 and PHA Events on October 28, 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.*