# Grand Prix Auto Wash > Self-serve car wash app with loyalty rewards, discounts, and wash purchases. (iPhone/iPad app by Hamilton Manufacturing Corp.) - Source: https://appshunter.io/ios/app/grand-prix-auto-wash/id6448930598 (this page in markdown: same URL + `.md`) - Developer: [Hamilton Manufacturing Corp](https://appshunter.io/developer/1242417471) - Category: Shopping - Price: Free - Rating: 4.30/5 from 3 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 15.0 · 4 MB - Languages: American English - Released: 2023-08-23 - Data updated: 2026-06-04 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/grand-prix-auto-wash/id6448930598/reviews.md ## What is Grand Prix Auto Wash? Grand Prix Auto Wash prides ourselves in being a 24/7 self serve, hassle-free car auto spa, with many options to keep your ride looking clean year-round! With our exciting mobile app, you can: • Earn FREE washes with our Loyalty Rewards program. • Claim deals and discounts. • Easily find our locations. • Buy & gift washes or wash bundles. • Get a FREE wash on your birthday! Download the Grand Prix Auto Wash app today and start saving your way to a cleaner car! ## Key features - Loyalty Rewards program for free washes - Claim deals and discounts - Find nearby locations - Buy and gift washes/bundles - Free birthday wash ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/grand-prix-auto-wash/id6448930598/reviews.md ### 3/5 — App Code didn’t work *2025-12-05* First time trying Grand Prix Auto wash, prepaid thru app, picked my location first, even got an email that said I could use at any of four locations including the one I picked. When I got there and scanned, it said not valid at this location, entered number by hand, tried twice, same thing. Had to back out and get an attendant, she also tried with my phone, said it wasn’t valid at this location. She was kind enough to let me go through, due to the hassle. My review is for the app, the car wash was 5 stars for this type of car wash, it was definitely the best drive-thru car wash I’ve even been too. Got my car clean. If the attendant would not have cared, I would never come back, but I will definitely return, just not use the app. ## Frequently asked questions about Grand Prix Auto Wash ### How do I earn free washes with Grand Prix Auto Wash? You can earn free washes through the app's Loyalty Rewards program. The app also offers a free wash on your birthday. ### Can I buy car washes for others using Grand Prix Auto Wash? Yes, the app allows you to buy and gift washes or wash bundles, making it easy to share the service with friends and family. ### What devices is Grand Prix Auto Wash compatible with? Grand Prix Auto Wash is available on iPhone, iPad, and iPod devices. ### How often is Grand Prix Auto Wash updated? The app was last updated on December 23, 2025, indicating regular updates to improve functionality and add new features. ### What is the age rating for Grand Prix Auto Wash? The app has an age rating of 4+, making it suitable for a wide range of users. ### Does Grand Prix Auto Wash have ads? No, Grand Prix Auto Wash does not contain advertisements, providing an uninterrupted user experience. ### What is the user sentiment for Grand Prix Auto Wash? The app has a strong rating of 4.3 stars from 3 ratings, suggesting positive user experiences. ### Can I find Grand Prix Auto Wash locations through the app? Yes, the app provides an easy way to find all Grand Prix Auto Wash locations, ensuring you can access their services conveniently. ## Version history (last 3 releases) ### 1.4.1.1 — 2025-12-23 Security features and security ### 1.4.1 — 2025-03-18 Security updates and functionality ### 5.1.0 — 2023-08-23 No release notes. ## Apps similar to Grand Prix Auto Wash | App | Rating | Price | Category | | --- | --- | --- | --- | | [Hollywood Online Shopping](https://appshunter.io/ios/app/hollywood-online-shopping/id1440821678) | 4.8 (44) | Free | Shopping | | [ArtClvb](https://appshunter.io/ios/app/artclvb/id6450716347) | 5.0 (14) | Free | Shopping | | [Gulfeagle](https://appshunter.io/ios/app/gulfeagle/id1673788151) | 3.0 (2) | Free | Shopping | | [Busch's Fresh Food Market](https://appshunter.io/ios/app/buschs-fresh-food-market/id1669105175) | 4.8 (507) | Free | Shopping | | [thisAppMap](https://appshunter.io/ios/app/thisappmap/id1295185101) | — | Free | Shopping | | [Gooding Christie's](https://appshunter.io/ios/app/gooding-christies/id1349933354) | 4.5 (17) | Free | Shopping | ## More apps by Hamilton Manufacturing Corp - [Hamilton Car Wash](https://appshunter.io/ios/app/hamilton-car-wash/id1215427927) - [IQ Car Wash](https://appshunter.io/ios/app/iq-car-wash/id1252417111) - [Spirit of America Car Wash](https://appshunter.io/ios/app/spirit-of-america-car-wash/id1253584749) - [Hometown Car Wash](https://appshunter.io/ios/app/hometown-car-wash/id1257929334) - [Brite & Shiny Car Wash](https://appshunter.io/ios/app/brite-and-shiny-car-wash/id1267882062) - [Sawmill Auto Wash](https://appshunter.io/ios/app/sawmill-auto-wash/id1274203960) All apps by Hamilton Manufacturing Corp: https://appshunter.io/developer/1242417471 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*