Comparison

Signals Generator vs White Shield

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

White Shield

Estimate noise levels and generate audio interference to prevent unauthorized recording of conversations. Features a "Faraday cage" mode for use with shielding devices. This tool helps minimize the possibility of extracting speech signals from recordings.

Highlights
  • Estimate noise level
  • Calculate microphone suppression
  • Generate audio interference
  • Faraday cage mode
  • Unified decibel meter and white noise generator
  • Counters unauthorized recording
Read full description

WhiteShield enables you to estimate the noise level in your environment, calculate the level of microphone suppression, and produce audio interference of a needed volume to prevent recording conversations on a phone. The application includes a "Faraday cage" mode, exclusively designed for incorporation with shielding devices. Warning, this app generates high volume noise! Do not use it with headphones. ‣ Intuitive and user-friendly interface; ‣ Unifies a decibel meter and white noise generator in a single application; ‣ Ideally suited for use with shielding boxes or cases; ‣ Effectively counters unauthorized conversation recordings; ‣ Minimizes the possibility of extracting useful signals (speech) from recording. What's New: - Microphone suppression level estimate added; - Interface has been refreshed; - Bug fixes.

Screenshots

Signals Generator4 screens
White Shield3 screens

Verdict

The call

The clearest difference is in-app purchases: White Shield at none against Signals Generator's 14. Signals Generator's advantage is ratings volume (29 vs 2) and rating (4.7 vs 4.5). On price, ads and iOS requirement 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. White Shield asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Signals Generator holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Signals Generator has 29 ratings behind it against 2, so its average is the more settled of the two.

Scorecard5 real differences · 5 level
Signals Generator versus White Shield: the parameters behind the verdict, then further details
ParameterSignals GeneratorWhite Shield
PriceFreeFree
Rating4.7 (29 ratings) — better4.5 (2 ratings)
Positive reviews66.7% of reviews—
Number of ratings29 — better2
Update frequencyEvery 33 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size15 MB10 MB
Age rating4+4+
Developer怀卫 张Velter KZ

Customer experience

Signals Generator

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

White Shield

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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
None

White Shield

No in-app purchases

Questions

Is Signals Generator free?
Signals Generator is free to download, with in-app purchases available.
Is White Shield free?
White Shield is free to download, with no in-app purchases.
Which has better reviews, Signals Generator or White Shield?
Signals Generator is rated higher. Signals Generator averages 4.7 out of 5 from 29 ratings, while White Shield averages 4.5 from 2 ratings.
Do Signals Generator or White Shield have ads?
Neither Signals Generator nor White Shield shows ads.

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