o46scope

Shinsuke Tsutsui Utilities iPhoneiPadiPod touch

o46scope is a free Utilities app for iPhone and iPad by Shinsuke Tsutsui. Requires iOS 13.0. Updated April 24, 2026.

Price: Free; on the App Store
Size: 53 MB; Age 4+
Updated: Apr 24; 2026 · v4.0

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About o46scope

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 · Updated April 24, 2026

· Ads have been added · Premium subscribers enjoy an ad-free experience · You can now participate in a survey from the Settings screen

App privacy

The developer, Shinsuke Tsutsui, reported these privacy practices to Apple.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

Location: Coarse Location
Identifiers: Device ID
Usage Data: Product Interaction, Advertising Data

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

Identifiers: Device ID
Usage Data: Product Interaction, Advertising Data

Used for: Third-Party Advertising, Analytics

Data Not Linked to You

The following data, which may be collected but is not linked to your identity, may be used for the following purposes:

Location: Coarse Location
Purchases: Purchase History

Used for: Third-Party Advertising, Analytics, App Functionality

App details

o46scope is a free Utilities app for iPhone, iPad and iPod touch, developed by Shinsuke Tsutsui. It requires iOS 13.0 or later, is 53 MB to download and is available in 2 languages. It was first released on October 27, 2025 and last updated on April 24, 2026.

Category: Utilities
Price: Free
Version: 4.0
Size: 53 MB
Requires: iOS 13.0 or later
Compatibility: iPhone, iPad, iPod touch
Languages: English, Japanese
Age rating: 4+
Released: October 27, 2025
Last updated: April 24, 2026
Developer: Shinsuke Tsutsui

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Alternatives to o46scope

Looking for apps like o46scope? Here are 6 similar apps on the App Store. The highest rated is N-Signal / FFT Sound Analyzer (5.0/5), and all 6 are free to download.

o46scope vs. alternatives
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o46scope	–	Free	April 24, 2026
ScopeSnap	–	Free	Jul 22, 2026	Compare
SimpleFFT	–	Free	Dec 12, 2025	Compare
FNam FFT Spectrogram Analyzer	–	Free	Oct 10, 2026	Compare
N-Signal / FFT Sound Analyzer	5.0 / 5 (2)	Free	Jan 8, 2026	Compare
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