# LAB GUARD vs HD

The clearest difference is update cadence: HD at every 2 weeks against LAB GUARD's monthly. HD also leads on iOS requirement (12.0 vs 15.0). 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.

LAB GUARD ships an update monthly, HD every 2 weeks. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | LAB GUARD | HD |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 27 MB | 46 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SnapTag Inc.](https://appshunter.io/developer/1566849218) | [Hyundai Heavy Industries Co., Ltd.](https://appshunter.io/developer/1098104557) |

## What reviewers say

### LAB GUARD

[App page](https://appshunter.io/ios/app/lab-guard-tracer/id6476549111)

**In-app purchases:** none


### HD

[App page](https://appshunter.io/ios/app/hd-emocean/id6756709995)

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

**In-app purchases:** none


## Frequently asked questions

### Is LAB GUARD free?

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

### Is HD free?

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

### Do LAB GUARD or HD have ads?

Neither LAB GUARD nor HD shows ads.

### Which is updated more often, LAB GUARD or HD?

LAB GUARD ships an update monthly, and HD every 2 weeks. Most recently, LAB GUARD was updated on October 6, 2026 and HD on October 14, 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.*