# Car vs Retaining Wall Planner

The clearest difference is price: Car at Free against Retaining Wall Planner's $4.99. Car also leads on iOS requirement (13.0 vs 17.0). Retaining Wall Planner's advantage is update cadence (weekly vs every 5 months). On ads, in-app purchases and device support there is nothing between them.

Car is free to download; Retaining Wall Planner costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Car ships an update every 5 months, Retaining Wall Planner weekly. The most recent releases landed on October 23, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Car | Retaining Wall Planner |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[3.0 (19 ratings)](https://appshunter.io/ios/app/car-part-pro/id777953910/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 31.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | Free | — |
| Size | 55 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Car-Part.com](https://appshunter.io/developer/777953913) | [光 杨](https://appshunter.io/developer/1891134953) |

## What reviewers say

### Car

[App page](https://appshunter.io/ios/app/car-part-pro/id777953910)

This app connects professional auto repairers and appraisers with a vast inventory of auto parts, including recycled, aftermarket, and OE surplus. It offers real-time delivery and inventory information, VIN decoding for accurate part identification, and detailed part images.

**Highlights:** 175 million parts inventory, Real-time delivery information, VIN decoding technology, Part images in search results, Customizable user profiles, Inventory availability confirmation

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

**In-app purchases:** none


### Retaining Wall Planner

[App page](https://appshunter.io/ios/app/retaining-wall-planner/id6767141922)

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

**In-app purchases:** none


## Frequently asked questions

### Is Car free?

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

### Is Retaining Wall Planner free?

Retaining Wall Planner costs $4.99, with no in-app purchases.

### Do Car or Retaining Wall Planner have ads?

Neither Car nor Retaining Wall Planner shows ads.

### Which is updated more often, Car or Retaining Wall Planner?

Car ships an update every 5 months, and Retaining Wall Planner weekly. Most recently, Car was updated on October 23, 2026 and Retaining Wall Planner on September 23, 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.*