# IADAC vs CarMax Auctions

The clearest difference is update cadence: CarMax Auctions at every 6 weeks against IADAC's every 28 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.

IADAC ships an update every 28 months, CarMax Auctions every 6 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | IADAC | CarMax Auctions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.8 (5 ratings)](https://appshunter.io/ios/app/carmax-auctions/id6479819758/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 28 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 12 MB | 1 MB |
| Requires iOS | 12.0 | 12.0.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Independent Auto Dealers Association of California](https://appshunter.io/developer/1569244100) | [Auction Frontier](https://appshunter.io/developer/1090103662) |

## What reviewers say

### IADAC

[App page](https://appshunter.io/ios/app/iadac/id1569244098)

**Features:** macOS Compatibility

**In-app purchases:** none


### CarMax Auctions

[App page](https://appshunter.io/ios/app/carmax-auctions/id6479819758)

This app allows licensed dealers to participate in weekly vehicle auctions. Dealers can view inventory, research vehicles, place bids in real-time, and listen to live auctioneer audio.

**Highlights:** Real-time bidding, View vehicle lists, Place notes and watches, Research vehicles, View photos, Live auctioneer audio

**In-app purchases:** none


## Frequently asked questions

### Is IADAC free?

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

### Is CarMax Auctions free?

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

### Do IADAC or CarMax Auctions have ads?

Neither IADAC nor CarMax Auctions shows ads.

### Which is updated more often, IADAC or CarMax Auctions?

IADAC ships an update every 28 months, and CarMax Auctions every 6 weeks. Most recently, IADAC was updated on November 3, 2026 and CarMax Auctions on October 30, 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.*