# NPA Events vs VDAT

The clearest difference is update cadence: VDAT at weekly against NPA Events's every 6 months. VDAT also leads on iOS requirement (15.1 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

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

NPA Events ships an update every 6 months, VDAT weekly. Both last shipped on October 24, 2026.

## The numbers

| Metric | NPA Events | VDAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.6 (12 ratings)](https://appshunter.io/ios/app/npa-events/id942751198/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 16.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Weekly** |
| Monetization | Ad-supported | — |
| Size | 53 MB | 39 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [National Association of Secondary School Principals](https://appshunter.io/developer/1482289285) | [Southern California Trail Adoption Initiative Inc.](https://appshunter.io/developer/6771527256) |

## What reviewers say

### NPA Events

[App page](https://appshunter.io/ios/app/npa-events/id942751198)

This app provides comprehensive information for National Association of Secondary School Principals events, including schedules, session details, and exhibitor information. It aims to enhance the conference experience for school leaders and student members.

**Highlights:** Event schedules, Session details, Speaker information, Exhibitor details, Conference resources

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

**In-app purchases:** none


### VDAT

[App page](https://appshunter.io/ios/app/vdat/id6771527254)

**In-app purchases:** none


## Frequently asked questions

### Is NPA Events free?

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

### Is VDAT free?

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

### Do NPA Events or VDAT have ads?

Neither NPA Events nor VDAT shows ads.

### Which is updated more often, NPA Events or VDAT?

NPA Events ships an update every 6 months, and VDAT weekly. Most recently, NPA Events was updated on October 24, 2026 and VDAT 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.*