# Comas Montgomery vs BidMax

The clearest difference is in-app purchases: Comas Montgomery at none against BidMax's 1. BidMax's advantage is update cadence (every 2 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. BidMax sells 1 in-app purchase, starting at $9.99 per month. Comas Montgomery asks for nothing beyond the download.

Comas Montgomery ships an update every 7 months, BidMax every 2 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Comas Montgomery | BidMax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bidmax-auction-analyzer/id6776855680/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 weeks** |
| Size | 51 MB | 31 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Comas Montgomery Realty & Auction Co., Inc.](https://appshunter.io/developer/1882527793) | [Matthew Renda](https://appshunter.io/developer/6776855682) |

## What reviewers say

### Comas Montgomery

[App page](https://appshunter.io/ios/app/comas-montgomery/id6760079348)

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

**In-app purchases:** none


### BidMax

[App page](https://appshunter.io/ios/app/bidmax-auction-analyzer/id6776855680)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BidMax Pro | $9.99 | per month |


## Frequently asked questions

### Is Comas Montgomery free?

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

### Is BidMax free?

BidMax is free to download, with in-app purchases available.

### Do Comas Montgomery or BidMax have ads?

Neither Comas Montgomery nor BidMax shows ads.

### Which is updated more often, Comas Montgomery or BidMax?

Comas Montgomery ships an update every 7 months, and BidMax every 2 weeks. Most recently, Comas Montgomery was updated on October 15, 2026 and BidMax on October 24, 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.*