# 4 State Trucks vs AMSOIL The clearest difference is rating: 4 State Trucks at 5.0 against AMSOIL's 4.2. 4 State Trucks also leads on review sentiment (67% vs 54%). AMSOIL's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (263 vs 6). 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. 4 State Trucks holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: AMSOIL has 263 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 67% of 4 State Trucks's written reviews are positive against 54% of AMSOIL's. 4 State Trucks ships an update every 3 months, AMSOIL fortnightly. The most recent releases landed on August 7, 2026 and September 22, 2026 respectively. ## The numbers | Metric | 4 State Trucks | AMSOIL | | --- | --- | --- | | Price | Free | Free | | Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/4-state-trucks/id6736893540/reviews)** | [4.2 (263 ratings)](https://appshunter.io/ios/app/amsoil/id6748611692/reviews) | | Number of ratings | 6 | **263** | | Positive reviews | **66.7% of reviews** | 53.8% of reviews | | In-app purchases | No | No | | Ads | No | No | | Update frequency | Every 3 months | **Fortnightly** | | Monetization | Free | Free | | Size | 32 MB | 33 MB | | Requires iOS | 15.6 | **15.1** | | Devices | iPhone, iPod | **iPhone, iPad, iPod** | | Age rating | 4+ | 4+ | | Developer | [FOUR STATE INTERNATIONAL TRUCKS, INC.](https://appshunter.io/developer/1506926261) | [AMSOIL](https://appshunter.io/developer/1826557400) | ## What reviewers say ### 4 State Trucks [App page](https://appshunter.io/ios/app/4-state-trucks/id6736893540) Access America's largest semi-truck parts superstore with over 100,000 parts for major truck makes. Easily find parts, track orders, and access exclusive deals and notifications. **Highlights:** 100,000+ semi-truck parts, Smart filters by make, model, year, Exclusive app-only promotions, Real-time order tracking, Quick reordering of frequent items, New product and promotion notifications **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 4 State Trucks free? 4 State Trucks 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, 4 State Trucks or AMSOIL? 4 State Trucks is rated higher. 4 State Trucks averages 5.0 out of 5 from 6 ratings, while AMSOIL averages 4.2 from 263 ratings. ### Do 4 State Trucks or AMSOIL have ads? Neither 4 State Trucks nor AMSOIL shows ads. ### Which is updated more often, 4 State Trucks or AMSOIL? 4 State Trucks ships an update every 3 months, and AMSOIL fortnightly. Most recently, 4 State Trucks was updated on August 7, 2026 and AMSOIL on September 22, 2026. --- *Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*