# CONOTECH vs BD

The clearest difference is update cadence: CONOTECH at every 6 weeks against BD's every 3 months. CONOTECH also leads on iOS requirement (13.0 vs 15.6). 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.

CONOTECH ships an update every 6 weeks, BD every 3 months. The most recent releases landed on August 19, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | CONOTECH | BD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/conotech/id6468930830/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 52 MB | 18 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [CONOTECH](https://appshunter.io/developer/1747652001) | [Shenzhen Rierxing Electronics Co., Ltd](https://appshunter.io/developer/6773068820) |

## What reviewers say

### CONOTECH

[App page](https://appshunter.io/ios/app/conotech/id6468930830)

This utility app connects to specific smart devices, enabling local image viewing and transmission. It also offers remote control capabilities and allows for firmware updates.

**Highlights:** Support for AQUILA Family, NIGHT ARROW, TALON devices, Local device image reading and transmission, Remote device control, Online firmware upgrades, Support for older devices

**Features:** macOS Compatibility

**In-app purchases:** none


### BD

[App page](https://appshunter.io/ios/app/bd-engine/id6773223585)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CONOTECH free?

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

### Is BD free?

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

### Do CONOTECH or BD have ads?

Neither CONOTECH nor BD shows ads.

### Which is updated more often, CONOTECH or BD?

CONOTECH ships an update every 6 weeks, and BD every 3 months. Most recently, CONOTECH was updated on August 19, 2026 and BD on September 12, 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.*