# AIDOVID vs BD

The clearest difference is in-app purchases: BD at none against AIDOVID's 19. AIDOVID's advantage is update cadence (every 4 weeks vs every 3 months) and iOS requirement (13.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. AIDOVID sells 15 in-app purchases, starting at $0.39 per 7 days. BD asks for nothing beyond the download.

AIDOVID ships an update every 4 weeks, BD every 3 months. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | AIDOVID | BD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (7 ratings)](https://appshunter.io/ios/app/aidovid/id6475004429/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 153 MB | 18 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen YUDO SMART Technology Co.,LTD](https://appshunter.io/developer/1764902667) | [Shenzhen Rierxing Electronics Co., Ltd](https://appshunter.io/developer/6773068820) |

## What reviewers say

### AIDOVID

[App page](https://appshunter.io/ios/app/aidovid/id6475004429)

Remotely monitor and control smart hardware devices. View live video, receive alerts for motion or human detection, and communicate via two-way audio. Access recorded footage from SD cards or the cloud.

**Highlights:** Real-time video viewing, Motion and human detection alerts, Two-way audio communication, Remote PTZ control, Access to recorded footage, Device sharing

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

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1Days-EVR-3Days-Plan | $0.39 | per 7 days |
| 7-Day Data Unlimited | $0.99 | per 7 days |
| 7D_4GData Service Sub Test | $0.99 | per 7 days |
| 7-Day Data  Unlimited | $0.99 | per 7 days |
| Monthly Service Bundle | $19.99 | per month |
| 4G Data Monthly Plan 2devices | $19.99 | per month |
| Yearly Service Bundle | $199.99 | per year |
| 4G Data Week | $0.49 | one-time |
| 7D LPEVR Month | $4.99 | one-time |
| 7-Days-EVR-Month | $5.99 | one-time |
| 4G Data Month | $16.99 | one-time |
| 7D LPEVR+4G Data Month | $19.99 | one-time |
| 7D LPEVR Year | $49.99 | one-time |
| 4G Data Year | $169.99 | one-time |
| 7D LPEVR+4G Data Year | $199.99 | one-time |


### BD

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is AIDOVID free?

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

### Is BD free?

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

### Do AIDOVID or BD have ads?

Neither AIDOVID nor BD shows ads.

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

AIDOVID ships an update every 4 weeks, and BD every 3 months. Most recently, AIDOVID was updated on October 24, 2026 and BD on October 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.*