FormantScope
跃然 王 Utilities iPhoneiPadiPod touch
FormantScope is a free Utilities app for iPhone and iPad by 跃然 王. Requires iOS 17.0. Updated June 13, 2026.
- Price
- Free
- on the App Store
- Size
- 4 MB
- Age 4+
- Updated
- Jun 13
- 2026 · v1.1
Screenshots
About FormantScope
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.
What’s new
Version 1.1 · Updated June 13, 2026
English (What's New in This Version) This update refines the live chart and rounds out the interface: • Friendlier chart axes — ticks now use clean, evenly spaced values and always include the range endpoints. • New time axis along the bottom, with an adjustable time window (2–20 seconds). • Each F0 / F1 / F2 readout now shows a running average for the current window. • Various polish and stability improvements.
App privacy
The developer, 跃然 王, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to FormantScope
Looking for apps like FormantScope? Here are 6 similar apps on the App Store. The highest rated is Symbol Keys (5.0/5), and 4 of the 6 are free to download.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| FormantScope | – | Free | June 13, 2026 | |
| VoiceViewer | – | Free | Jul 2, 2024 | Compare |
| Symbol Keys | 5.0 / 5 (6) | Free | Sep 19, 2026 | Compare |
| Easy Audio Spectrogram | – | Free | Jul 7, 2026 | Compare |
| MarkRender - Markdown To Image | – | 0.99 USD | Apr 23, 2025 | Compare |
| RemoteREV | – | Free | Jan 12, 2024 | Compare |
| AudioTestLab | – | 0.99 USD | Aug 20, 2026 | Compare |
Compare FormantScope with the top alternatives: ratings, updates, ASO score and keyword gaps →