# Luna智能广播 vs Visual Displacement Meter

The clearest difference is update cadence: Visual Displacement Meter at fortnightly against Luna智能广播's every 7 months. Luna智能广播's advantage is 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.

Luna智能广播 ships an update every 7 months, Visual Displacement Meter fortnightly. Both last shipped on October 7, 2026.

## The numbers

| Metric | Luna智能广播 | Visual Displacement Meter |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Size | 40 MB | 82 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [广东保伦电子股份有限公司](https://appshunter.io/developer/933187149) | [Inteagle Information Technology(Dongguan) Co., Ltd.](https://appshunter.io/developer/1720865930) |

## What reviewers say

### Luna智能广播

[App page](https://appshunter.io/ios/app/luna/id1494665736)

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

**In-app purchases:** none


### Visual Displacement Meter

[App page](https://appshunter.io/ios/app/visual-displacement-meter/id6749835043)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Luna智能广播 free?

Luna智能广播 is free to download, with no in-app purchases.

### Is Visual Displacement Meter free?

Visual Displacement Meter is free to download, with no in-app purchases.

### Do Luna智能广播 or Visual Displacement Meter have ads?

Neither Luna智能广播 nor Visual Displacement Meter shows ads.

### Which is updated more often, Luna智能广播 or Visual Displacement Meter?

Luna智能广播 ships an update every 7 months, and Visual Displacement Meter fortnightly. Most recently, Luna智能广播 was updated on October 7, 2026 and Visual Displacement Meter on October 7, 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.*