Comparison

Voltcraft WIFI Scope vs Frequency

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

Head to head
About

Voltcraft WIFI Scope

Features
Read full description

WIFI Scope is an oscilloscope app for iPad, iPhone。Combined with WIFI Scope hardware, it make your iOS device to be an oscilloscope。 With iOS devices’s touch screens, it enables more natural interaction with the user interface. You can zoom in or out a waveform using your fingers. WIFI Scope must be used with WIFI Scope hardware. Feature Highlights: * Connects hardware wirelessly via Wi-fi * 2 channels * Intuitive software: pinch-to-zoom waveforms * Max 250M sample rate with 70 MHz bandwidth * 5ns/div-500s/div * FFT

About

Frequency

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

Highlights
  • Generate sine, square, sawtooth, triangle waves
  • Adjustable frequency (1Hz-22000Hz)
  • Animated sound wave visualization
  • Volume control (0-100%)
  • Note selection
  • Speaker cleaning function
Features
Read full description

Are you producing? Want to sound test your speakers or tune your instruments? Or simply, do you want to generate sounds and listen to the generated sounds in different frequencies? Well, then you need a frequency sound generator to produce sound waves in different frequencies. Introducing Frequency Sound Generator! Frequency: Generator Sound player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz and 22000Hz (Hertz). It produces accurate tone & soundwaves while being simple and easy to use. Additionally, pick from a wide variety of notes by taping the notes icon. No matter if you need to sound test and generate high frequency sounds or low frequency sounds, our frequency tone generator is your #1 best solution. EASY CONTROL Frequency: Sound Generator allows you to easily change the soundwaves from the main menu. Simply tap on the sound wave icon and pick between sine, square, sawtooth or triangle. ANIMATED SOUND WAVE You’ll love the animated sound wave function which visually represents the sound for a given frequency. You can change waveform by clicking on a round button at the left side and get a different sound and animated wave. ADJUST FREQUENCY & VOLUME Adjust the sound generating frequency easily by dragging the yellow dot. Make use of the - & + buttons for added adjusting precision. Additionally, control the volume of the generated sounds from 0-100%. NUMEROUS USES: This sound generating app can be used in multiple use cases: - Test your hearing. A human being is capable of hearing frequencies in the average range of 20Hz-20000Hz. This range is getting smaller by age, so it’s interesting to sound test your hearing capabilities. - Test speakers and headphones for the high end (treble) and low end (bass) tones. - Use this app as an instrument tuner when playing or producing. - Cleaning water from the speaker. Since sound is making small vibrations it can help to shake off unwanted water from your speakers. - Find your tinnitus frequency. NOTE: Since mobile phones are not high-quality audio sources and in-built speakers may vary in quality, sometimes users can hear sounds at very low or high frequencies even beyond the scope of human hearing. That noise is not sound of a given frequency but static or “parasite” noise generated by your mobile device. For the best experience use a pair of good quality headphones.

Screenshots

Voltcraft WIFI Scope1 screens
Frequency3 screens

Verdict

The call

The clearest difference is ads: Voltcraft WIFI Scope at none against Frequency's shown. Voltcraft WIFI Scope also leads on iOS requirement (9.0 vs 16.0). On price, update cadence, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Voltcraft WIFI Scope ships an update every 3 weeks, Frequency fortnightly. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Voltcraft WIFI Scope versus Frequency: the parameters behind the verdict, then further details
ParameterVoltcraft WIFI ScopeFrequency
PriceFreeFree
Rating—4.7 (1.1K ratings) — better
Positive reviews—72.7% of reviews
Number of ratings—1.1K — better
Update frequencyEvery 3 weeksFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better16.0
Further details — not scored
Size26 MB8 MB
Age rating4+4+
DeveloperCEI Conrad Electronic International (HK) LimitedLucija Jaksic

Bugs and requests

Voltcraft WIFI Scope

Not enough reviews yet to summarise bugs or requests.

Frequency

Reported bugs

4 issues
  • Slider snaps to certain numbers, skipping decimals
  • Missing specific frequencies (431Hz, 432Hz, 128Hz)
  • Settings/controls off-screen on smaller devices
  • App crashes when switching between applications

Requested features

9 requests
  • Manual text input for precise frequency selection
  • Ad-free paid version option
  • Timer feature for sessions
  • Digital tuning with +/- buttons on main screen
  • Background image customization or frequency healing chart
Show 4 more
  • Decimal frequency support
  • Increased decibel/amplification levels
  • Language localization (Turkish requested)
  • Continuous background play without app switching interruption

In-app purchases

None

Voltcraft WIFI Scope

No in-app purchases

None

Frequency

No in-app purchases

Questions

Is Voltcraft WIFI Scope free?
Voltcraft WIFI Scope is free to download, with no in-app purchases.
Is Frequency free?
Frequency is free to download, with no in-app purchases.
Do Voltcraft WIFI Scope or Frequency have ads?
Frequency shows ads; Voltcraft WIFI Scope does not.
Which is updated more often, Voltcraft WIFI Scope or Frequency?
Voltcraft WIFI Scope ships an update every 3 weeks, and Frequency fortnightly. Most recently, Voltcraft WIFI Scope was updated on October 19, 2026 and Frequency on October 24, 2026.

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