# GPC vs Warmaster Companion

The clearest difference is update cadence: Warmaster Companion at monthly against GPC's every 17 months. 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.

GPC ships an update every 17 months, Warmaster Companion monthly. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | GPC | Warmaster Companion |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 17 months | **Monthly** |
| Monetization | Free | — |
| Size | 47 MB | 57 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Penrite Oil Company](https://appshunter.io/developer/1161277195) | [Michael La Dow](https://appshunter.io/developer/1706259185) |

## What reviewers say

### GPC

[App page](https://appshunter.io/ios/app/gpc/id1425696346)

This app helps users find the right oil and lubricant products for their vehicles. It provides recommendations based on specific vehicle information, ensuring optimal performance and maintenance.

**Highlights:** Product recommendations, Vehicle specific search, GPC store information, Oil and lubricant guide

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

**In-app purchases:** none


### Warmaster Companion

[App page](https://appshunter.io/ios/app/warmaster-companion/id6464565976)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GPC free?

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

### Is Warmaster Companion free?

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

### Do GPC or Warmaster Companion have ads?

Neither GPC nor Warmaster Companion shows ads.

### Which is updated more often, GPC or Warmaster Companion?

GPC ships an update every 17 months, and Warmaster Companion monthly. Most recently, GPC was updated on October 8, 2026 and Warmaster Companion on October 6, 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.*