# Theta Waves (Legacy) vs Frequency Generator (Sound)

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.

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.

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.

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.

## The numbers

| Metric | Theta Waves (Legacy) | Frequency Generator (Sound) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (14 ratings)](https://appshunter.io/ios/app/theta-waves-legacy/id971689987/reviews)** | [3.0 (6 ratings)](https://appshunter.io/ios/app/frequency-generator-sound/id6596757315/reviews) |
| Number of ratings | **14** | 6 |
| Positive reviews | **58.3% of reviews** | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 67 months | **Every 3 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 19 MB | 28 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Equilibrium Srl](https://appshunter.io/developer/546309406) | [NETIGEN Kluzowicz sp. j.](https://appshunter.io/developer/892331873) |

## What reviewers say

### Theta Waves (Legacy)

[App page](https://appshunter.io/ios/app/theta-waves-legacy/id971689987)

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:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theta Waves Full Pack | $9.99 | one-time |


### Frequency Generator (Sound)

[App page](https://appshunter.io/ios/app/frequency-generator-sound/id6596757315)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week subscription | $0.99 | per 7 days |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*