# Blackwell Auctions vs Gem

The clearest difference is ads: Blackwell Auctions at none against Gem's shown. Blackwell Auctions also leads on update cadence (every 6 months vs every 27 months). Gem's advantage is iOS requirement (13.4 vs 16.0). On price, 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.

Blackwell Auctions ships an update every 6 months, Gem every 27 months. The most recent releases landed on July 5, 2026 and March 22, 2026 respectively.

## The numbers

| Metric | Blackwell Auctions | Gem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (10 ratings)](https://appshunter.io/ios/app/blackwell-auctions/id1377883713/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 27 months |
| Monetization | Free | — |
| Size | 135 MB | 41 MB |
| Requires iOS | 16.0 | **13.4** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Blackwell Auctions LLC](https://appshunter.io/developer/1377883712) | [Gem Mint Auctions, LLC.](https://appshunter.io/developer/1530238043) |

## What reviewers say

### Blackwell Auctions

[App page](https://appshunter.io/ios/app/blackwell-auctions/id1377883713)

Participate in live and online auctions from your mobile device. Preview items, register easily, and receive notifications for your favorite lots. Track your bidding history and activity conveniently.

**Highlights:** Preview auction items, Watch live auctions, Bid in real-time, Easy registration, Push notifications, Bidding history access

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Gem

[App page](https://appshunter.io/ios/app/gem/id1530238041)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Blackwell Auctions free?

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

### Is Gem free?

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

### Do Blackwell Auctions or Gem have ads?

Gem shows ads; Blackwell Auctions does not.

### Which is updated more often, Blackwell Auctions or Gem?

Blackwell Auctions ships an update every 6 months, and Gem every 27 months. Most recently, Blackwell Auctions was updated on July 5, 2026 and Gem on March 22, 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.*