SpectraHold
SpectraHold is made and published by RAFAEL SILVA PFLEGER. AppBrain is an independent app data site and isn't affiliated with RAFAEL SILVA PFLEGER. The app name, icon, screenshots and description belong to RAFAEL SILVA PFLEGER and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- October 12, 2026
Rankings
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Similar apps and more from RAFAEL SILVA PFLEGERAlternatives to SpectraHold
Releases
Updates seen on the App Store- Version
- 1.0.1
- Launched
- October 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 6.27 MB
- Content rating
- Everyone
Technologies used by SpectraHold
About the app and developer
About SpectraHold
SpectraHold is an utilities app developed by RAFAEL SILVA PFLEGER.
User Ratings
The app has no ratings yet.
App Information
SpectraHold is freely available from the App Store. The app size is 6.27 MB. The latest version available is 1.0.1. The last update was on October 12, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since October 2026.
Developer information for RAFAEL SILVA PFLEGER
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Store listing
By RAFAEL SILVA PFLEGER, from the App Store
Description by RAFAEL SILVA PFLEGER Written by the developer, not by AppBrain. Click to read.
SpectraHold turns microphone input into a 3D spectrogram. Watch frequencies in real time, freeze the view, and explore up to 120 seconds of visual history to inspect a detail you just heard.
FREEZE AND EXPLORE
Tap the graph to inspect a frequency. Zoom and browse the history, then return to live analysis whenever you want.
ADJUST THE VIEW
Choose a visible window from 1 to 20 seconds, color palettes, and automatic or manual visual gain from −40 to +40 dB. Visual gain changes the graph without changing microphone gain.
FEATURES
• Real-time 3D spectrogram from 20 Hz to 20 kHz.
• Adjustable history from 20 to 120 seconds.
• Frequency inspection, zoom, and history navigation.
• Up to two estimated peaks per region: bass, midrange, and treble. Detection does not confirm resonance.
• Background capture and capture with the screen locked, while permitted by the system.
• Compatible with iPhone and iPad.
Audio is processed on your device. History stays in memory; no audio file is saved or uploaded. Closing the app or a system interruption may stop capture.
TRIAL AND PURCHASE
Download for free. Activate a free 7-day trial to access all features. After the trial, analysis stops until you purchase full access. The unlock is a one-time purchase, with no subscription or automatic charge. The local price is shown before you confirm the purchase. You can restore purchases.
SpectraHold is a visual analysis tool. It does not apply equalization, automatically eliminate feedback, or replace a calibrated sound pressure level meter. Estimates depend on the microphone, device, and recording conditions.