Comparison

Theta Waves (Legacy) vs Frequency Generator (Sound)

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

Head to head
About

Theta Waves (Legacy)

This app generates binaural sounds to help users achieve deep meditation and mindfulness. It allows customization of sound frequencies, background music, nature sounds, and timers. Unlock full features by purchasing the premium version.

Highlights
  • Binaural sound generation
  • Adjustable frequency slider
  • 7 integrated songs
  • 5 nature sounds
  • Built-in meditation timer
  • Customizable background colors
Features
Read full description

What are Theta Waves, and how can they help you? They are high amplitude but slow cycled brain waves that are associated with a state of deep meditation and mindfulness. They are extremely slow, and cycle about 4-7 times per second. Theta Waves is an app that allows you to recreate that sound, helping you meditate deeply. Theta Waves can emitts a waveform at 6 Hz: start the frequency and adjust it to your liking by moving your finger across the slider placed on the sound-wave at the center of the screen. You can start the wave emission by pressing the Theta button on the top left before starting your meditation session; you will notice a significant change in the quality of your meditation while you use it. We strongly suggest the use of headphones or quality speakers while using it. To help you meditate even better, we added several in-App functions. You can choose to add 7 different songs and 5 sounds of nature to the Theta Wave to relax and become even more mindful. The built in timer allows you to set how much the app will play. Finally, you can change the background color through your settings: choose among 5 relaxing Theta Wave inspired tones. By purchasing the full version of the app, you can unlock and enjoy all of these functions and improve your experience. We put a lot of thought and passion in creating this app, and we hope that by using it many people will discover the power of brainwave entrainment and isochronic tones. Use it to improve the quality of your meditation. For any suggestions, problems or requests please contact us at equilibriumapps@gmail.com

About

Frequency Generator (Sound)

Generate various sound waves, from sine to triangle, with adjustable frequencies and volumes. Test speakers, tune instruments, or create multi-oscillator soundscapes. Customize your audio experience with a range of settings and themes.

Highlights
  • Generate sine, square, sawtooth, or triangle sound waves
  • Adjust frequency from 1Hz to 22000Hz
  • Control volume and balance (left/right)
  • Multi-oscillator mode for three simultaneous sounds
  • Customizable frequency range slider
  • Low latency audio setting
  • Theme customization
Features
Read full description

Would you like to generate sounds, test your speakers or tune your instruments? If the answers is yes, download Frequency Genrator! Using this application you can generate sound waves in different frequencies. The player lets you generate a sine, square, sawtooth or triangle sound wave with a frequency between 1Hz and 22000Hz (hertz). Single Oscillator Mode 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. Adjust the sound generating frequency easily by dragging the dot. Make use of the - & + buttons for added adjusting precision. Change volume and balance. Tap on the R-L icon. Multi Oscillator Mode In this mode you can generate in one time three sounds. Set different freqencies, waves and volume. Theme Change the colour of your application. Settings in Frequency Genarator: - change frequency range slider range to allow you more precision while selecting frequencies, - enable or disable run in background option, - choose between two slider scales: linear or logarithmic, - enable or disable volume booster, - enable or disable decimal precision up two decimals in case of need for more precise sound generation, - change +/- button step for even easier adjustments, - enable or disable show octave buttons in Single Oscillator - low latency setting enables high-performance low latency audio which makes slider more responsive and eliminates lag. (NOTE: Low latency setting may result in high frequencies on some devices sound inaccurate, especially on higher volume.) Attention! Please, for the best experience of using the app, use a pair of good quality headphones. Mobile devices are not high-quality audio sources.

Screenshots

Theta Waves (Legacy)3 screens
Frequency Generator (Sound)4 screens

Verdict

The call

The clearest difference is rating: Theta Waves (Legacy) at 3.6 against Frequency Generator (Sound)'s 3.0. Theta Waves (Legacy) also leads on ads (none vs shown) and review sentiment (58% vs 50%). Frequency Generator (Sound)'s advantage is update cadence (every 3 months vs every 67 months). On price, ratings volume, 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. Theta Waves (Legacy) sells 1 one-off in-app purchase and Frequency Generator (Sound) sells 1 in-app purchase, starting at $0.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Theta Waves (Legacy) holds the better App Store score, 3.6 against 3.0. Both are backed by a comparable volume of ratings — 14 and 6 respectively. Written reviews point the same way: 58% of Theta Waves (Legacy)'s written reviews are positive against 50% of Frequency Generator (Sound)'s.

UpkeepUpdate frequency

Theta Waves (Legacy) ships an update every 67 months, Frequency Generator (Sound) every 3 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Theta Waves (Legacy) versus Frequency Generator (Sound): the parameters behind the verdict, then further details
ParameterTheta Waves (Legacy)Frequency Generator (Sound)
PriceFreeFree
Rating3.6 (14 ratings) — better3.0 (6 ratings)
Positive reviews58.3% of reviews — better50.0% of reviews
Number of ratings14 — better6
Update frequencyEvery 67 monthsEvery 3 months — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size19 MB28 MB
Age rating4+4+
DeveloperEquilibrium SrlNETIGEN Kluzowicz sp. j.

Customer experience

Theta Waves (Legacy)

All ratings14 ratings
Positive57.1%
Neutral14.3%
Negative28.6%
Written reviews12 reviews
Positive58.3%
Neutral8.3%
Negative33.3%

Frequency Generator (Sound)

All ratings6 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

Theta Waves (Legacy)

One-time1
  • Theta Waves Full Pack$9.99
1 purchases

Frequency Generator (Sound)

Subscriptions1
  • 1 week subscription3 Days trial$0.997 Days

Questions

Is Theta Waves (Legacy) free?
Theta Waves (Legacy) is free to download, with in-app purchases available.
Is Frequency Generator (Sound) free?
Frequency Generator (Sound) is free to download, with in-app purchases available.
Which has better reviews, Theta Waves (Legacy) or Frequency Generator (Sound)?
Theta Waves (Legacy) is rated higher. Theta Waves (Legacy) averages 3.6 out of 5 from 14 ratings, while Frequency Generator (Sound) averages 3.0 from 6 ratings.
Do Theta Waves (Legacy) or Frequency Generator (Sound) have ads?
Frequency Generator (Sound) shows ads; Theta Waves (Legacy) does not.
Which is updated more often, Theta Waves (Legacy) or Frequency Generator (Sound)?
Theta Waves (Legacy) ships an update every 67 months, and Frequency Generator (Sound) every 3 months. Most recently, Theta Waves (Legacy) was updated on November 1, 2026 and Frequency Generator (Sound) on November 4, 2026.

Other comparisons