Car vs Retaining Wall Planner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Car
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.
- 175 million parts inventory
- Real-time delivery information
- VIN decoding technology
- Part images in search results
- Customizable user profiles
- Inventory availability confirmation
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Auto Parts Market for Professional Repairers and Appraisers. (Registration Required.) • 190 million recycled (green), aftermarket, and OE surplus parts with real time delivery information. Real time inventory availability confirmation is provided. • Part Images in search results give you an up-close view of the exact part for sale before you order. • SmartVin™, Car-Part’s exclusive technology, decodes the VIN to identify the correct part. • Customizable Profiles with Delivery Time, Warranties, Certified Recyclers, Certified and Validated Aftermarket Parts, Part Grades, Same Year & Newer. Want to know more? Visit CarPartPro.com or call us at 859-344-1925 to speak to a Car-Part Pro expert about how Car-Part Pro can fit into your workflow, saving you time and money. Please Note: Some of our popular features are not supported by certain Apple products, such as Real Time Live Chat with Supplier Sales Staff. Please access CarPartPro.com from your computer to enjoy this feature. Car-Part Pro™, another innovative product by Car-Part.com
Retaining Wall Planner
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Retaining Wall Planner turns a wall layout into a shareable yard-order sheet for blocks, caps, base gravel, drainage gravel, fabric, drain pipe, waste buffers, and rough material cost. Enter wall size, block face dimensions, base trench, drainage width, and local prices to estimate what to buy before you call the yard or schedule delivery. The order sheet separates base counts from waste buffers so the rounded-up material list is easier to check with a supplier or crew lead. The app works offline, has no account requirement, and stays focused on small retaining wall material planning instead of broad contractor management. Important: Retaining Wall Planner is a material estimating tool, not an engineering or permit tool. Verify manufacturer instructions, site conditions, drainage needs, soil loads, and local requirements before building.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Car | Retaining Wall Planner |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 3.0 (19 ratings) — better | — |
| Positive reviews | 31.6% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 5 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 55 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Car-Part.com | 光 杨 |
In-app purchases
Car
No in-app purchases
Retaining Wall Planner
No in-app purchases
Questions
Is Car free?
Is Retaining Wall Planner free?
Do Car or Retaining Wall Planner have ads?
Which is updated more often, Car or Retaining Wall Planner?
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