# ab vs BULLKAT

The clearest difference is iOS requirement: BULLKAT at 12.0 against ab's 18.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ab ships an update every 7 months, BULLKAT every 8 months. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | ab | BULLKAT |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 7 months** | Every 8 months |
| Monetization | Free | — |
| Size | 0 MB | 59 MB |
| Requires iOS | 18.5 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Raiffeisen-NetWorld GmbH](https://appshunter.io/developer/1874238971) | [DVSE GmbH](https://appshunter.io/developer/436130172) |

## What reviewers say

### ab

[App page](https://appshunter.io/ios/app/ab-auction/id1147493601)

This app facilitates online auctions for used agricultural machinery. It offers a wide selection, reliable advice, and a quick, straightforward process with no auction fees. Become part of the platform for buying and selling farm equipment.

**Highlights:** Online auctions for used agricultural machinery, No auction fees, Reliable consultation, Fast and easy processing, Large selection of equipment

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

**In-app purchases:** none


### BULLKAT

[App page](https://appshunter.io/ios/app/bullkat/id6447672469)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ab free?

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

### Is BULLKAT free?

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

### Do ab or BULLKAT have ads?

Neither ab nor BULLKAT shows ads.

### Which is updated more often, ab or BULLKAT?

ab ships an update every 7 months, and BULLKAT every 8 months. Most recently, ab was updated on October 3, 2026 and BULLKAT on October 2, 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.*