o46scope
Shinsuke Tsutsui
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About this app
o46scope is an audio measurement app for iPhone and iPad that helps you visualize sound in real time. It supports oscilloscope and FFT spectrum display, allowing you to inspect waveforms and frequency components instantly. The app also supports internal signal generation with Tone1 / Tone2 and test signal (Beep) output, making it useful for quick checks, learning, and simple audio measurement tasks. Key features • Oscilloscope display • FFT spectrum display • Signal tab for signal control • Internal signal generation with Tone1 / Tone2 • Speaker output for tones • Test signal (Beep) output • Adjustable parameters Premium Tone1 / Tone2 internal signal generation is available as a premium feature. It is available without ads. Ideal for users who want waveform visualization, frequency analysis, and signal generation in one app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
What's new
Version 4.0 · Apr 24, 2026
· Ads have been added · Premium subscribers enjoy an ad-free experience · You can now participate in a survey from the Settings screen
In-app purchases
The most popular purchases on the App Store.
- PremiumSubscription · 7 days free trialUSD 19.99 / year