Comparison

Frequency Sound Wave Generator vs HemiSync

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

Head to head
About

Frequency Sound Wave Generator

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

Highlights
  • Single and multiple frequency generation
  • Musical notes presets
  • Binaural beats
  • SFX sound generator
  • Sweep generator
  • Bass/Subwoofer sound test
  • DTMF tones
Features
Read full description

All frequency sound generator tools in one app! Tone generation, sound tests, musical tuning and many more. This app helps if you are looking for generating sounds in different frequencies, analyzing sound and making sound tests which produce sound waves based on the desired tone. Frequency sound generator includes user-friendly and very high-quality tone generation tools: • Single frequency generator • Multiple frequency tone generation. • Musical notes presets • Binaural beats • SFX sound generator • Sweep generator. • Bass/Subwoofer sound test • DTMF tones • Metronome • Noise generator Features: • Play sound in background: Play your frequency generation sounds in the background while your app is minimized or your screen is off. • Export all generated sounds to an audio file that you can share. • Animated wave in the single oscillator tool. • Frequency generator effects such as Vibrato (FM), Tremolo (AM), Ring Modulation (RM) and also Pulse Width Modulation (PWM) - for square wave only. • Noise generator effects such as auto-pan and breathing effect. • Play up to 15 oscillators at once in the multi oscillator tool. • Play up to 15 sweep oscillators at once. • Tap your tempo in metronome. Commonly used for: • Make you own experiments with sound generation. • Testing own hearing. Human ear is capable of hearing frequencies between 20Hz to 20000Hz. • Use this app as an instrument for playing or producing music. • Tune your musical instruments with musical notes presets. • Test speakers for high end (treble) and low end (bass) tones. • Discover how your audio handles sweeps of frequencies which range from ultrasound to infrasound. • Relax with binaural beats which play different frequencies in each ear. • Find a way to mask your tinnitus frequency. • Or have fun generating random sound effects, different frequencies and exploring all tone generation tools in this app. • Relax with white noise, brown noise, blue noise, violet noise, grey noise or pink noise playing in the background. Notes: • This app supports decimal values as input for frequencies when generating a tone. • This app makes an animated sound wave which tries to visualize a current frequency. • There are several waveforms available: sine, square, triangle and sawtooth. • Clean UI makes navigation simple through the navigation bar or pages where there are more frequency sound generating tools available. • Customize how the app behaves through settings menu where you can change themes, enable octave buttons, decimal points and more. • Phone speakers are not high-quality audio sources and may vary in quality. Sometimes a "parasite" noise can be generated by those speakers in very low or high frequencies which don't define the frequency. • Turn the volume down when creating high frequencies to not cause any discomfort when experimenting with the app. Privacy policy: https://www.frequencysoundgenerator.com/privacy Terms of use: https://www.frequencysoundgenerator.com/terms

About

HemiSync

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

Highlights
  • Binaural beat and isochronic tone generation
  • Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma)
  • Pre-configured audio presets
  • Session timer functionality
  • Solfeggio frequency options
Features
Read full description

Explore Audio Frequency Meditation HemiSync is an audio frequency generator that creates binaural beats and isochronic tones for meditation and relaxation practice. The app allows you to experiment with different sound frequencies that some users find helpful for their personal wellness routines. What This App Does: Generates customizable audio tones and beats Offers preset frequency combinations based on popular meditation practices Provides session timers and audio controls Includes binaural beat and isochronic tone generation modes Features: Frequency range selection (Delta, Theta, Alpha, Beta, Gamma) Adjustable beat frequencies and carrier tones Pre-configured audio presets Session timer functionality Solfeggio frequency options (396Hz, 417Hz, 432Hz) Please Note: This app is for entertainment and personal exploration purposes. It generates audio tones based on concepts from audio meditation practices. Any effects experienced are subjective and individual. Privacy Policy - https://enginezero.tech/app-privacy-policy/ Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Frequency Sound Wave Generator4 screens
HemiSync4 screens

Verdict

The call

The clearest difference is rating: Frequency Sound Wave Generator at 4.7 against HemiSync's 4.2. Frequency Sound Wave Generator also leads on ratings volume (87 vs 9) and device support (3 vs 1). HemiSync's advantage is ads (none vs shown) and review sentiment (100% vs 90%). On price, update cadence, 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. Frequency Sound Wave Generator sells 3 in-app purchases, starting at $1.99 per month and HemiSync sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Frequency Sound Wave Generator holds the better App Store score, 4.7 against 4.2. That said, the two scores are not equally well evidenced: Frequency Sound Wave Generator has 87 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 90% of Frequency Sound Wave Generator's written reviews are positive against 100% of HemiSync's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Frequency Sound Wave Generator ships an update monthly, HemiSync every 5 weeks. The most recent releases landed on October 13, 2026 and September 29, 2026 respectively.

Scorecard6 real differences · 4 level
Frequency Sound Wave Generator versus HemiSync: the parameters behind the verdict, then further details
ParameterFrequency Sound Wave GeneratorHemiSync
PriceFreeFree
Rating4.7 (87 ratings) — better4.2 (9 ratings)
Positive reviews90.5% of reviews100.0% of reviews — better
Number of ratings87 — better9
Update frequencyMonthly — betterEvery 5 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better18.4
Further details — not scored
Size169 MB61 MB
Age rating4+4+
DeveloperDavid KrejciEngineZero

Customer experience

Frequency Sound Wave Generator

All ratings87 ratings
Positive92.0%
Neutral3.4%
Negative4.6%
Written reviews21 reviews
Positive90.5%
Neutral0.0%
Negative9.5%

HemiSync

All ratings9 ratings
Positive77.8%
Neutral22.2%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Frequency Sound Wave Generator

Subscriptions2
  • Monthly PRO subscription$1.991 Month
  • Yearly Pro Membership7 Days trial$9.991 Year
One-time1
  • Lifetime PRO membership$19.99
1 purchases

HemiSync

Subscriptions1
  • Premium$0.991 Month

Questions

Is Frequency Sound Wave Generator free?
Frequency Sound Wave Generator is free to download, with in-app purchases available.
Is HemiSync free?
HemiSync is free to download, with in-app purchases available.
Which has better reviews, Frequency Sound Wave Generator or HemiSync?
Frequency Sound Wave Generator is rated higher. Frequency Sound Wave Generator averages 4.7 out of 5 from 87 ratings, while HemiSync averages 4.2 from 9 ratings.
Do Frequency Sound Wave Generator or HemiSync have ads?
Frequency Sound Wave Generator shows ads; HemiSync does not.
Which is updated more often, Frequency Sound Wave Generator or HemiSync?
Frequency Sound Wave Generator ships an update monthly, and HemiSync every 5 weeks. Most recently, Frequency Sound Wave Generator was updated on October 13, 2026 and HemiSync on September 29, 2026.

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