Comparison

Frequency vs PGDSP

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

Head to head
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.

About

PGDSP

Features
Read full description

A software that can connect DSP devices and adjust the sound effects of DSP devices

Screenshots

Frequency3 screens
PGDSP4 screens

Verdict

The call

The clearest difference is ads: PGDSP at none against Frequency's shown. PGDSP also leads on iOS requirement (12.0 vs 16.0). Frequency's advantage is update cadence (fortnightly vs every 2 months). On price, 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

Frequency ships an update fortnightly, PGDSP every 2 months. The most recent releases landed on September 21, 2026 and December 19, 2025 respectively.

Scorecard3 real differences · 7 level
Frequency versus PGDSP: the parameters behind the verdict, then further details
ParameterFrequencyPGDSP
PriceFreeFree
Rating4.7 (340 ratings) — better—
Positive reviews69.6% of reviews—
Number of ratings340 — better—
Update frequencyFortnightly — betterEvery 2 months
AdsYesNo — better
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.012.0 — better
Further details — not scored
Size8 MB7 MB
Age rating4+4+
DeveloperLucija JaksicPGDSP

Bugs and 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

PGDSP

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Frequency

No in-app purchases

None

PGDSP

No in-app purchases

Questions

Is Frequency free?
Frequency is free to download, with no in-app purchases.
Is PGDSP free?
PGDSP is free to download, with no in-app purchases.
Do Frequency or PGDSP have ads?
Frequency shows ads; PGDSP does not.
Which is updated more often, Frequency or PGDSP?
Frequency ships an update fortnightly, and PGDSP every 2 months. Most recently, Frequency was updated on September 21, 2026 and PGDSP on December 19, 2025.

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