Signals Generator vs Tone Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Signals Generator
Transform your mobile device into a dual-channel signal generator for sound and audio electric signals. Offers a wide variety of waveform types and customizable parameters like amplitude, frequency, and phase. Ideal for professionals and hobbyists for signal generation and circuit measurement.
- Dual-channel signal generation
- Multiple waveform types
- Adjustable amplitude, frequency, and phase
- Independent channel control
- Zoomable waveform display
- Interface color selection
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This app transforms your phone into a powerful handheld dual-channel signal generator for generating sound signals (and can also be used by professionals to generate audio electrical signals). Signal types include: sine wave, triangular wave, sawtooth wave, rectangular wave, Gaussian noise, Rayleigh noise, gamma noise, salt-and-pepper noise, uniformly distributed noise, pink noise, red (brown) noise, blue noise, purple noise, longest sequence signal, frequency-sweep signal, elementary function waveform, and hand-drawn waveform. It can switch between single-channel and dual-channel operation; the dual channels can independently set waveforms and their parameters. The parameters of the signal, such as amplitude, frequency, and phase, can be adjusted. The waveform can be scaled freely using gestures or buttons, making it simple and easy to use. Support interface color selection. This application is normally used to generate sound signals and poses no risks. Special instructions for circuit measurement: Professionals can utilize this application for circuit measurements, with audio electrical signals being output through the left and right channels of headphones. Please ensure safety: You must possess sufficient professional knowledge, and isolation equipment must be added to high-voltage circuits. Circuit measurement involves risks. The author of this application will not be responsible for any personal or equipment damage caused by the correct or incorrect use of this application.
Tone Generator
Generate various audio tones like sine, square, sawtooth, and triangle waves across a wide frequency range. Adjust frequencies by swiping and utilize built-in features for fun hearing tests or to clean your device's speaker.
- Sine, square, sawtooth, triangle wave generation
- Adjustable frequency via swipe
- Built-in hearing test sweep
- Speaker cleaning function
- Large frequency range
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Tone Generator generates sine, square, sawtooth and triangle tone at a large frequency range. Frequency of the tones can be adjusted by swiping up or down on the screen. Tone Generator has a built-in feature to quickly sweep frequency of a sine tone to test your hearing. This feature is purely for fun and should not be used for any diagnostics. Tone Generator can also help remove dust and water from device's speakerphone by playing tones at various frequencies.
Screenshots
Verdict
The clearest difference is ads: Signals Generator at none against Tone Generator's shown. Signals Generator also leads on device support (4 vs 2). Tone Generator's advantage is update cadence (every 4 months vs every 33 months) and review sentiment (84% vs 67%). On price, rating, in-app purchases and monetization model 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. Signals Generator sells 14 one-off in-app purchases and Tone Generator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for Signals Generator against 4.8 for Tone Generator. Both are backed by a comparable volume of ratings — 29 and 138 respectively. Written reviews are what separate them: 67% of Signals Generator's written reviews are positive against 84% of Tone Generator's.
Signals Generator ships an update every 33 months, Tone Generator every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.
| Parameter | Signals Generator | Tone Generator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (29 ratings) | 4.8 (138 ratings) — better |
| Positive reviews | 66.7% of reviews | 83.7% of reviews — better |
| Number of ratings | 29 | 138 — better |
| Update frequency | Every 33 months | Every 4 months — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 16.0 |
| Further details — not scored | ||
| Size | 15 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | 怀卫 张 | Tevfik Yucek |
Customer experience
Signals Generator
Tone Generator
In-app purchases
Signals Generator
- Sine Wave$0.99
- Square Wave$0.99
- Gaussian Noise$0.99
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- Uniformly distributed noise$0.99
- Pink Noise$0.99
- Red (brown) noise$0.99
- Maximum Length Sequence$0.99
- Rayleigh Noise$0.99
- Sawtooth Wave$0.99
- Gamma Noise$0.99
- Functional Wave$2.99
- Sweep Signal$2.99
- All Noise Signals$3.99
- All type of signals$7.99
Tone Generator
- Remove Advertisements$2.99
Questions
Is Signals Generator free?
Is Tone Generator free?
Which has better reviews, Signals Generator or Tone Generator?
Do Signals Generator or Tone Generator have ads?
Which is updated more often, Signals Generator or Tone Generator?
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