Tone Generator vs o46scope
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tone Generator
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Tone Generator Tone Generator is a versatile audio tool that generates accurate test signals with fully customizable frequency, volume, and panning settings. It is designed for a wide range of applications, including acoustic calibration, audio equipment testing, and ear training. Supported Waveforms - Sine - Triangle - Sawtooth - Square Key Features - Customizable Frequency: Precision control across the audible range (e.g., 20Hz – 20kHz). - Volume Adjustment: Fine-tune the output level. - Panning Control: Adjust the balance between Left (L) and Right (R) channels. - Background Playback: Continues to run even when the app is in the background. - Intuitive UI: A simple, user-friendly interface for seamless operation. Common Use Cases - Speaker & Headphone Testing: Evaluate the performance and range of your hardware. - Hearing Sensitivity Checks: Verify your personal frequency response and hearing range. - Audio Equipment Calibration: Ensure your gear is tuned and balanced correctly. - Education & Training: A perfect tool for acoustic training and general audio education.
o46scope
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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/
Screenshots
Verdict
The clearest difference is in-app purchases: Tone Generator at none against o46scope's 1. Tone Generator also leads on update cadence (every 2 weeks vs every 6 weeks). o46scope's advantage is ads (none vs shown) and iOS requirement (13.0 vs 17.6). On price 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. o46scope sells 1 in-app purchase, starting at $19.99 per year. Tone Generator asks for nothing beyond the download.
Tone Generator ships an update every 2 weeks, o46scope every 6 weeks. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.
| Parameter | Tone Generator | o46scope |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks — better | Every 6 weeks |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Eiji Chiba | Shinsuke Tsutsui |
In-app purchases
Tone Generator
No in-app purchases
o46scope
- Premium7 Days trial$19.991 Year
Questions
Is Tone Generator free?
Is o46scope free?
Do Tone Generator or o46scope have ads?
Which is updated more often, Tone Generator or o46scope?
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