# NAPA eRack vs AMSOIL

The clearest difference is review sentiment: AMSOIL at 54% against NAPA eRack's 0%. AMSOIL also leads on rating (4.3 vs 1.8) and update cadence (fortnightly vs every 16 months). NAPA eRack's advantage is iOS requirement (8.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

AMSOIL holds the better App Store score, 4.3 against 1.8. That said, the two scores are not equally well evidenced: AMSOIL has 309 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 0% of NAPA eRack's written reviews are positive against 54% of AMSOIL's.

NAPA eRack ships an update every 16 months, AMSOIL fortnightly. The most recent releases landed on October 22, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | NAPA eRack | AMSOIL |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (5 ratings)](https://appshunter.io/ios/app/napa-erack/id903011405/reviews) | **[4.3 (309 ratings)](https://appshunter.io/ios/app/amsoil/id6748611692/reviews)** |
| Number of ratings | 5 | **309** |
| Positive reviews | 0.0% of reviews | **53.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 23 MB | 33 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Genuine Parts Company](https://appshunter.io/developer/625306650) | [AMSOIL](https://appshunter.io/developer/1826557400) |

## What reviewers say

### NAPA eRack

[App page](https://appshunter.io/ios/app/napa-erack/id903011405)

Easily find NAPA products using your mobile device. Search catalogs by part number, vehicle make, or model to quickly locate desired items.

**Highlights:** Search NAPA product catalogs, Find parts by part number, Search by vehicle make, Search by vehicle model, Locate specific items

**Features:** macOS Compatibility

**In-app purchases:** none


### AMSOIL

[App page](https://appshunter.io/ios/app/amsoil/id6748611692)

Manage your vehicle maintenance and order premium synthetic oils. Track oil changes, set reminders, and get personalized product recommendations for all your vehicles. Shop and reorder with ease for your cars, motorcycles, ATVs, and more.

**Highlights:** Vehicle maintenance tracking, Personalized product recommendations, License plate & VIN scanner, Easy reordering of oils and filters, Maintenance reminders, Biometric login

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Excellent mileage
- 💡 Useful service record feature

**What reviewers complain about**

- 🐛 Login issues
- 🐛 Slow performance
- 🐛 Inability to print orders

**Reported bugs**

- Unable to log in through the app
- MyGarage information takes forever to load
- App crashes

**Requested features**

- Remove 'join now' pop-up for existing users
- Register app with META for better advertising


## Frequently asked questions

### Is NAPA eRack free?

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

### Is AMSOIL free?

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

### Which has better reviews, NAPA eRack or AMSOIL?

AMSOIL is rated higher. NAPA eRack averages 1.8 out of 5 from 5 ratings, while AMSOIL averages 4.3 from 309 ratings.

### Do NAPA eRack or AMSOIL have ads?

Neither NAPA eRack nor AMSOIL shows ads.

### Which is updated more often, NAPA eRack or AMSOIL?

NAPA eRack ships an update every 16 months, and AMSOIL fortnightly. Most recently, NAPA eRack was updated on October 22, 2026 and AMSOIL 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.*