VoMo2 vs FormantScope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VoMo2
This utility app monitors and displays target amplitude measures. It provides a straightforward way to gather and visualize vocal intensity data.
- Monitors target amplitudes
- Displays amplitude measures
- Gathers vocal intensity data
- Simple interface
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Simple onset Monitor for gathering and displaying measures of target amplitudes.
FormantScope
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FormantScope analyzes your voice in real time on device: it shows fundamental frequency (F0), the first and second formants (F1 and F2), and input level, with short history charts for practice and coaching. • Live numeric readouts for F0, F1, F2, and level • Dual-series charts with independent scales • Stability and gating to reduce flicker during continuous phonation • Optional WAV export to a folder you choose • iPhone, iPad, and Mac; microphone is used only for local analysis • No account required; open-source project (see support link) FormantScope does not send your microphone audio to the developer for processing. Optional recordings are saved only where you select on your device.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | VoMo2 | FormantScope |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 29 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 8 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Hollins Communications Research Institute | 跃然 王 |
In-app purchases
VoMo2
No in-app purchases
FormantScope
No in-app purchases
Questions
Is VoMo2 free?
Is FormantScope free?
Do VoMo2 or FormantScope have ads?
Which is updated more often, VoMo2 or FormantScope?
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