# NAPA TRACS vs SPC AlignPro™

The clearest difference is update cadence: SPC AlignPro™ at monthly against NAPA TRACS's every 30 months. NAPA TRACS's advantage is ratings volume (22 vs 7) and iOS requirement (7.0 vs 15.6). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 2.6 for NAPA TRACS against 2.7 for SPC AlignPro™. Both are backed by a comparable volume of ratings — 22 and 7 respectively. Written reviews are what separate them: 38% of NAPA TRACS's written reviews are positive against 33% of SPC AlignPro™'s.

NAPA TRACS ships an update every 30 months, SPC AlignPro™ monthly. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | NAPA TRACS | SPC AlignPro™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.6 (22 ratings)](https://appshunter.io/ios/app/napa-tracs/id885581615/reviews) | **[2.7 (7 ratings)](https://appshunter.io/ios/app/spc-alignpro/id1638642751/reviews)** |
| Number of ratings | **22** | 7 |
| Positive reviews | **38.5% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Monthly** |
| Monetization | Free | Free |
| Size | 14 MB | 45 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Parts Company](https://appshunter.io/developer/625306650) | [Niwot Corporation](https://appshunter.io/developer/1638642753) |

## What reviewers say

### NAPA TRACS

[App page](https://appshunter.io/ios/app/napa-tracs/id885581615)

This app allows NAPA TRACS users to scan and decode vehicle VIN numbers directly from their mobile device. Captured VINs and vehicle details are then sent to the NAPA PROLink catalog for part searches, customer management, or estimate creation.

**Highlights:** Mobile VIN capture and decoding, VIN data sync to PROLink catalog, Attach VINs to customers or estimates, Capture additional vehicle details, Secure login with TRACS credentials

**Features:** macOS Compatibility

**In-app purchases:** none


### SPC AlignPro™

[App page](https://appshunter.io/ios/app/spc-alignpro/id1638642751)

Access manufacturer alignment specifications for vehicles dating back to 1985. Quickly diagnose and fix alignment and suspension issues with VIN scanning, license plate lookup, and detailed illustrations of adjustment methods and service parts.

**Highlights:** Manufacturer alignment specifications since 1985, Service parts information, VIN scanning, License plate ID lookup, Alignment adjustment illustrations, Suspension height specifications

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NAPA TRACS free?

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

### Is SPC AlignPro™ free?

SPC AlignPro™ is free to download, with no in-app purchases.

### Which has better reviews, NAPA TRACS or SPC AlignPro™?

SPC AlignPro™ is rated higher. NAPA TRACS averages 2.6 out of 5 from 22 ratings, while SPC AlignPro™ averages 2.7 from 7 ratings.

### Do NAPA TRACS or SPC AlignPro™ have ads?

Neither NAPA TRACS nor SPC AlignPro™ shows ads.

### Which is updated more often, NAPA TRACS or SPC AlignPro™?

NAPA TRACS ships an update every 30 months, and SPC AlignPro™ monthly. Most recently, NAPA TRACS was updated on October 22, 2026 and SPC AlignPro™ on October 11, 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.*