# FormantScope vs Vgent振动诊断

The clearest difference is update cadence: Vgent振动诊断 at weekly against FormantScope's every 6 weeks. 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.

FormantScope ships an update every 6 weeks, Vgent振动诊断 weekly. The most recent releases landed on October 3, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | FormantScope | Vgent振动诊断 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Size | 4 MB | 16 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [跃然 王](https://appshunter.io/developer/1895682344) | [Shandong Yichuang Zhiwei Intelligent Technology Co., Ltd.](https://appshunter.io/developer/1872584423) |

## What reviewers say

### FormantScope

[App page](https://appshunter.io/ios/app/formantscope/id6764803567)

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

**In-app purchases:** none


### Vgent振动诊断

[App page](https://appshunter.io/ios/app/vgent/id6788021336)

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

**In-app purchases:** none


## Frequently asked questions

### Is FormantScope free?

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

### Is Vgent振动诊断 free?

Vgent振动诊断 is free to download, with no in-app purchases.

### Do FormantScope or Vgent振动诊断 have ads?

Neither FormantScope nor Vgent振动诊断 shows ads.

### Which is updated more often, FormantScope or Vgent振动诊断?

FormantScope ships an update every 6 weeks, and Vgent振动诊断 weekly. Most recently, FormantScope was updated on October 3, 2026 and Vgent振动诊断 on October 9, 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.*