# SD401 vs TopCam

The clearest difference is update cadence: TopCam at every 6 weeks against SD401's every 5 months. TopCam also leads on iOS requirement (12.0 vs 15.5). 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.

SD401 ships an update every 5 months, TopCam every 6 weeks. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | SD401 | TopCam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/topcam-pro/id1624170053/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 6 weeks** |
| Monetization | — | Free |
| Size | 25 MB | 112 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Owen Brown](https://appshunter.io/developer/979499266) | [Shenzhen City, Zhi Yang Software Co., Ltd.](https://appshunter.io/developer/1166472722) |

## What reviewers say

### SD401

[App page](https://appshunter.io/ios/app/sd401/id979499267)

**Features:** macOS Compatibility

**In-app purchases:** none


### TopCam

[App page](https://appshunter.io/ios/app/topcam-pro/id1624170053)

Connect your mobile device to your car's data recorder to preview, record, and save videos and pictures. Easily download your captured media locally for sharing with friends.

**Highlights:** Real-time preview, Video recording, Picture capture, Download to local storage, Sharing functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SD401 free?

SD401 is free to download, with no in-app purchases.

### Is TopCam free?

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

### Do SD401 or TopCam have ads?

Neither SD401 nor TopCam shows ads.

### Which is updated more often, SD401 or TopCam?

SD401 ships an update every 5 months, and TopCam every 6 weeks. Most recently, SD401 was updated on October 9, 2026 and TopCam on October 6, 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.*