Comparison

Tone Generator EX vs Frequency

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

Head to head
About

Tone Generator EX

Generate a wide range of audio tones with adjustable frequencies and waveforms. Control playback in the background, from your notification drawer, or lock screen. The app automatically pauses for calls and alarms, and allows you to save custom presets.

Highlights
  • Frequency range 15Hz to 22KHz
  • Sine, Square, Sawtooth, Triangle waveforms
  • Auto-off timer
  • Background playback
  • Notification drawer control
  • Create custom presets
  • Set frequency by music note
Features
Read full description

Tone Generator EX is an audio tone generator. It provides following features: ● Frequency range from 15Hz to 22KHz. ● Can play 4 different waveforms: Sine/Square/Sawtooth/Triangle  ● Auto-off timer. ● Playback running in background. ● Playback can be controlled from the notification drawer, lock screen or headset button without having to reopen the APP. ● Auto-pause on incoming call, alarm, etc. ● You can create your own presets. ● Set frequency by selecting a music note.

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

Tone Generator EX3 screens
Frequency3 screens

Verdict

The call

Tone Generator EX and Frequency both sit at 4.8 stars, but that hides the real split: 91% of Tone Generator EX's written reviews are positive against 73% of Frequency's. Tone Generator EX also leads on monetization model (ad-supported vs free with in-app purchases) and iOS requirement (10.0 vs 16.0). On price, rating, ratings volume and update cadence 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.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Tone Generator EX against 4.7 for Frequency. Both are backed by a comparable volume of ratings — 529 and 1.1K respectively. Written reviews are what separate them: 91% of Tone Generator EX's written reviews are positive against 73% of Frequency's.

UpkeepUpdate frequency

Tone Generator EX ships an update every 9 days, Frequency fortnightly. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Tone Generator EX versus Frequency: the parameters behind the verdict, then further details
ParameterTone Generator EXFrequency
PriceFreeFree
Rating4.8 (529 ratings) — better4.7 (1.1K ratings)
Positive reviews90.7% of reviews — better72.7% of reviews
Number of ratings5291.1K — better
Update frequencyEvery 9 days — betterFortnightly
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better16.0
Further details — not scored
Size29 MB8 MB
Age rating4+4+
DeveloperAn-Che LeeLucija Jaksic

Customer experience

Tone Generator EX

All ratings439 ratings
Positive95.7%
Neutral1.6%
Negative2.7%
Written reviews54 reviews
Positive90.7%
Neutral1.9%
Negative7.4%

Frequency

All ratings338 ratings
Positive93.5%
Neutral3.3%
Negative3.3%
Written reviews66 reviews
Positive72.7%
Neutral4.5%
Negative22.7%

User reviews

Tone Generator EX

From 529 App Store ratings

What we love

  • 👍 Clean, intuitive, and elegant interface design
  • 🎵 Precise frequency control with decimal accuracy
  • 💰 Completely free with no ads or subscriptions
  • ⚙️ Customizable A440 tuning standard adjustment
  • 💾 Preset saving and loading functionality

Room to improve

  • 📉 Limited frequency range (minimum 15Hz, maximum needs extension)
  • 🚫 No direct frequency input via typing
  • ⏸️ No export functionality for generated tones
  • 🔇 Clicking sounds during frequency adjustments
  • 📱 No stereo output capability

Frequency

From 1.1K App Store ratings

What we love

  • 👍 Simple and easy to use interface
  • 🎵 Accurate frequency generation
  • 💰 Free application
  • 🧘 Helpful for meditation and stress relief
  • 🔧 Multiple waveform options (sine, square, triangular, sawtooth)

Room to improve

  • 📢 Intrusive and inappropriate advertisements
  • 🔊 Potential audio damage to speakers/hearing
  • 🔒 Privacy concerns and data collection issues
  • 📱 UI elements off-screen on compact devices
  • 🎚️ Difficult frequency selection with slider

Bugs and requests

Tone Generator EX

Reported bugs

3 issues
  • App crashes and won't play after initial use
  • Requires unnecessary credit card information
  • Potential compatibility issues with newer iOS versions

Requested features

15 requests
  • Extend frequency range to 10Hz or lower (0-12Hz requested)
  • Extend upper frequency range to support .4-12Hz adjustments
  • Direct frequency input by typing instead of dial adjustment
  • VST3/AUv3/desktop plugin version for DAW integration
  • Frequency sweep functionality with adjustable speed
Show 10 more
  • Automated frequency sweep with smooth ascending/descending
  • Export generated tones to audio files
  • Stereo output capability
  • Automatic numerical sorting of presets
  • Play presets directly from list with individual play buttons
  • Output level attenuator in dB
  • Option to disable clicking sounds during frequency changes
  • Dual tone generation (play two frequencies simultaneously)
  • Paid ad-free version option
  • Duty cycle control for square waves

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

Tone Generator EX

No in-app purchases

None

Frequency

No in-app purchases

Questions

Is Tone Generator EX free?
Tone Generator EX is free to download, with no in-app purchases.
Is Frequency free?
Frequency is free to download, with no in-app purchases.
Which has better reviews, Tone Generator EX or Frequency?
Tone Generator EX is rated higher. Tone Generator EX averages 4.8 out of 5 from 529 ratings, while Frequency averages 4.7 from 1.1K ratings.
Do Tone Generator EX or Frequency have ads?
Both Tone Generator EX and Frequency show ads.
Which is updated more often, Tone Generator EX or Frequency?
Tone Generator EX ships an update every 9 days, and Frequency fortnightly. Most recently, Tone Generator EX was updated on October 23, 2026 and Frequency on October 25, 2026.

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