# VoMo2 vs FormantScope

The clearest difference is update cadence: FormantScope at every 6 weeks against VoMo2's every 29 months. VoMo2's advantage is iOS requirement (12.1 vs 17.0). 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.

VoMo2 ships an update every 29 months, FormantScope every 6 weeks. The most recent releases landed on September 29, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | VoMo2 | FormantScope |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/vomo2/id1267957331/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 8 MB | 4 MB |
| Requires iOS | **12.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hollins Communications Research Institute](https://appshunter.io/developer/1266723162) | [跃然 王](https://appshunter.io/developer/1895682344) |

## What reviewers say

### VoMo2

[App page](https://appshunter.io/ios/app/vomo2/id1267957331)

This utility app monitors and displays target amplitude measures. It provides a straightforward way to gather and visualize vocal intensity data.

**Highlights:** Monitors target amplitudes, Displays amplitude measures, Gathers vocal intensity data, Simple interface

**Features:** macOS Compatibility

**In-app purchases:** none


### FormantScope

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

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

**In-app purchases:** none


## Frequently asked questions

### Is VoMo2 free?

VoMo2 is free to download, with no in-app purchases.

### Is FormantScope free?

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

### Do VoMo2 or FormantScope have ads?

Neither VoMo2 nor FormantScope shows ads.

### Which is updated more often, VoMo2 or FormantScope?

VoMo2 ships an update every 29 months, and FormantScope every 6 weeks. Most recently, VoMo2 was updated on September 29, 2026 and FormantScope on September 16, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*