# Active Valve Control BLE vs BULLKAT

Active Valve Control BLE and BULLKAT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Active Valve Control BLE ships an update every 9 months, BULLKAT every 8 months. The most recent releases landed on October 7, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Active Valve Control BLE | BULLKAT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (4 ratings)](https://appshunter.io/ios/app/active-valve-control-ble/id1125843491/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 8 months** |
| Monetization | Free | — |
| Size | 23 MB | 59 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Alexander Savinykh](https://appshunter.io/developer/986551377) | [DVSE GmbH](https://appshunter.io/developer/436130172) |

## What reviewers say

### Active Valve Control BLE

[App page](https://appshunter.io/ios/app/active-valve-control-ble/id1125843491)

This app allows users to electronically control their car's exhaust flaps via a mobile interface. Customize valve behavior based on speed and RPM ranges, set safety opening points, and create multiple sound profiles for different driving experiences. It supports a wide range of premium vehicle manufacturers.

**Highlights:** Electronic exhaust flap control, Customizable speed and RPM ranges, Safety opening RPM setting, Multiple sound profiles, Original mode for factory settings, Supports premium vehicle manufacturers

**Features:** macOS Compatibility

**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 Active Valve Control BLE free?

Active Valve Control BLE is free to download, with no in-app purchases.

### Is BULLKAT free?

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

### Do Active Valve Control BLE or BULLKAT have ads?

Neither Active Valve Control BLE nor BULLKAT shows ads.

### Which is updated more often, Active Valve Control BLE or BULLKAT?

Active Valve Control BLE ships an update every 9 months, and BULLKAT every 8 months. Most recently, Active Valve Control BLE was updated on October 7, 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.*