# SMART Union vs NS Trax

The clearest difference is rating: NS Trax at 3.7 against SMART Union's 3.1. NS Trax also leads on iOS requirement (11.0 vs 15.0). On price, review sentiment, ratings volume and update cadence there is nothing between them.

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

NS Trax holds the better App Store score, 3.7 against 3.1. Both are backed by a comparable volume of ratings — 34 and 29 respectively. Written reviews point the same way: 29% of SMART Union's written reviews are positive against 33% of NS Trax's.

SMART Union ships an update every 2 months, NS Trax every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | SMART Union | NS Trax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (34 ratings)](https://appshunter.io/ios/app/smart-union/id996490914/reviews) | **[3.7 (29 ratings)](https://appshunter.io/ios/app/ns-trax/id1355696602/reviews)** |
| Number of ratings | **34** | 29 |
| Positive reviews | 28.6% of reviews | **33.3% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 165 MB | 27 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [International Association of Sheet Metal, Air, Rail and Transportation Workers](https://appshunter.io/developer/1400949744) | [Norfolk Southern Corporation](https://appshunter.io/developer/453031834) |

## What reviewers say

### SMART Union

[App page](https://appshunter.io/ios/app/smart-union/id996490914)

Stay informed with union news and important notifications. Access member benefits, local union information, and resources to manage your meeting experience with schedules and maps.

**Highlights:** Union news updates, Important notifications, Member benefits access, Local union information, Meeting schedules and maps, Member resources

**In-app purchases:** none


### NS Trax

[App page](https://appshunter.io/ios/app/ns-trax/id1355696602)

Manage your shipments and view pipeline information with this business application. Track your equipment, browse exceptions, and view waybill details. You can also order and release cars, and access local service information.

**Highlights:** Search equipment, View pipeline information, Track shipments, Browse exceptions, View waybill information, Order and release cars

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART Union free?

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

### Is NS Trax free?

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

### Which has better reviews, SMART Union or NS Trax?

NS Trax is rated higher. SMART Union averages 3.1 out of 5 from 34 ratings, while NS Trax averages 3.7 from 29 ratings.

### Do SMART Union or NS Trax have ads?

Neither SMART Union nor NS Trax shows ads.

### Which is updated more often, SMART Union or NS Trax?

SMART Union ships an update every 2 months, and NS Trax every 6 weeks. Most recently, SMART Union was updated on October 24, 2026 and NS Trax 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.*