# NPSA Events vs Storage Trailers LLC

The clearest difference is update cadence: NPSA Events at every 3 months against Storage Trailers LLC's every 24 months. Storage Trailers LLC's advantage is iOS requirement (15.1 vs 17.0). 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.

NPSA Events ships an update every 3 months, Storage Trailers LLC every 24 months. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | NPSA Events | Storage Trailers LLC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 24 months |
| Size | 65 MB | 21 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [National Portable Storage Asso](https://appshunter.io/developer/1617077710) | [Clear Launch LLC](https://appshunter.io/developer/1164203205) |

## What reviewers say

### NPSA Events

[App page](https://appshunter.io/ios/app/npsa-events/id1617077708)

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

**In-app purchases:** none


### Storage Trailers LLC

[App page](https://appshunter.io/ios/app/storage-trailers-llc/id6468130768)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NPSA Events free?

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

### Is Storage Trailers LLC free?

Storage Trailers LLC is free to download, with no in-app purchases.

### Do NPSA Events or Storage Trailers LLC have ads?

Neither NPSA Events nor Storage Trailers LLC shows ads.

### Which is updated more often, NPSA Events or Storage Trailers LLC?

NPSA Events ships an update every 3 months, and Storage Trailers LLC every 24 months. Most recently, NPSA Events was updated on October 3, 2026 and Storage Trailers LLC on October 9, 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.*