# Rain Auto Wash vs Bay Kosher

The clearest difference is update cadence: Bay Kosher at every 2 months against Rain Auto Wash's every 18 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.

Rain Auto Wash ships an update every 18 months, Bay Kosher every 2 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Rain Auto Wash | Bay Kosher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/rain-auto-wash/id1587923723/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 4 MB | 37 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hamilton Manufacturing Corp](https://appshunter.io/developer/1242417471) | [My Cloud Grocer, LLC](https://appshunter.io/developer/1268498516) |

## What reviewers say

### Rain Auto Wash

[App page](https://appshunter.io/ios/app/rain-auto-wash/id1587923723)

This app offers a convenient way to manage car washes, earn rewards, and access exclusive deals. Join a monthly wash club for unlimited washes or gift washes to others. Find locations easily and get a free wash on your birthday.

**Highlights:** Loyalty Rewards Program for free washes, Monthly Wash Club for unlimited washes, Claim deals and discounts, Find car wash locations, Buy and gift washes/bundles, Free birthday wash

**Features:** macOS Compatibility

**In-app purchases:** none


### Bay Kosher

[App page](https://appshunter.io/ios/app/bay-kosher/id6740916652)

**In-app purchases:** none


## Frequently asked questions

### Is Rain Auto Wash free?

Rain Auto Wash is free to download, with no in-app purchases.

### Is Bay Kosher free?

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

### Do Rain Auto Wash or Bay Kosher have ads?

Neither Rain Auto Wash nor Bay Kosher shows ads.

### Which is updated more often, Rain Auto Wash or Bay Kosher?

Rain Auto Wash ships an update every 18 months, and Bay Kosher every 2 months. Most recently, Rain Auto Wash was updated on October 27, 2026 and Bay Kosher 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.*