Comparison

Signals Generator vs Tone Generator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Dual-channel signal generation
  • Multiple waveform types
  • Adjustable amplitude, frequency, and phase
  • Independent channel control
  • Zoomable waveform display
  • Interface color selection
Features
Read full description

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.

About

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.

Highlights
  • Sine, square, sawtooth, triangle wave generation
  • Adjustable frequency via swipe
  • Built-in hearing test sweep
  • Speaker cleaning function
  • Large frequency range
Features
Read full description

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

Signals Generator4 screens
Tone Generator4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
Signals Generator versus Tone Generator: the parameters behind the verdict, then further details
ParameterSignals GeneratorTone Generator
PriceFreeFree
Rating4.7 (29 ratings)4.8 (138 ratings) — better
Positive reviews66.7% of reviews83.7% of reviews — better
Number of ratings29138 — better
Update frequencyEvery 33 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size15 MB6 MB
Age rating4+4+
Developer怀卫 张Tevfik Yucek

Customer experience

Signals Generator

All ratings29 ratings
Positive89.7%
Neutral6.9%
Negative3.4%
Written reviews3 reviews
Positive66.7%
Neutral33.3%
Negative0.0%

Tone Generator

All ratings138 ratings
Positive94.9%
Neutral4.3%
Negative0.7%
Written reviews43 reviews
Positive83.7%
Neutral2.3%
Negative14.0%

In-app purchases

14 purchases

Signals Generator

One-time14
  • Sine Wave$0.99
  • Square Wave$0.99
  • Gaussian Noise$0.99
Show 11 more
  • 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
1 purchases

Tone Generator

One-time1
  • Remove Advertisements$2.99

Questions

Is Signals Generator free?
Signals Generator is free to download, with in-app purchases available.
Is Tone Generator free?
Tone Generator is free to download, with in-app purchases available.
Which has better reviews, Signals Generator or Tone Generator?
Tone Generator is rated higher. Signals Generator averages 4.7 out of 5 from 29 ratings, while Tone Generator averages 4.8 from 138 ratings.
Do Signals Generator or Tone Generator have ads?
Tone Generator shows ads; Signals Generator does not.
Which is updated more often, Signals Generator or Tone Generator?
Signals Generator ships an update every 33 months, and Tone Generator every 4 months. Most recently, Signals Generator was updated on October 7, 2026 and Tone Generator on October 11, 2026.

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