# Lambda vs Generate Frequency Sounds Hz

The clearest difference is review sentiment: Lambda at 80% against Generate Frequency Sounds Hz's 30%. Lambda also leads on rating (5.0 vs 3.6) and in-app purchases (none vs 3). Generate Frequency Sounds Hz's advantage is price (Free vs $2.99) and update cadence (every 4 months vs every 54 months). On device support and iOS requirement there is nothing between them.

Generate Frequency Sounds Hz is free to download; Lambda costs $2.99 up front. Generate Frequency Sounds Hz sells 3 in-app purchases, starting at $4.99 per 7 days. Lambda asks for nothing beyond the download.

Lambda holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Generate Frequency Sounds Hz has 14 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 80% of Lambda's written reviews are positive against 30% of Generate Frequency Sounds Hz's.

Lambda ships an update every 54 months, Generate Frequency Sounds Hz every 4 months. The most recent releases landed on September 17, 2026 and August 18, 2026 respectively.

## The numbers

| Metric | Lambda | Generate Frequency Sounds Hz |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lambda/id434581690/reviews)** | [3.6 (14 ratings)](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | **80.0% of reviews** | 30.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 54 months | **Every 4 months** |
| Monetization | Paid | **Ad-supported** |
| Size | 6 MB | 8 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [dgApps](https://appshunter.io/developer/357488432) | [Kevin Ghori](https://appshunter.io/developer/1639082610) |

## What reviewers say

### Lambda

[App page](https://appshunter.io/ios/app/lambda/id434581690)

This app helps musicians and sound engineers convert between musical notes, frequencies, and wavelengths. It features a dynamic fader, built-in oscillator, and frequency tracker with waveform display. Customize tuning standards and speed of sound for precise audio analysis.

**Highlights:** Convert notes, frequencies, wavelengths, Dynamic fader for real-time adjustment, Built-in oscillator with waveform, Frequency tracker with waveform, Customizable tuning standards, Adjustable speed of sound, Share data via standard methods

**In-app purchases:** none


### Generate Frequency Sounds Hz

[App page](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706)

Generate various sound waves and frequencies with this utility app. It offers single and multi-oscillator modes, binaural beats, and a dedicated test for bass and sub-woofers. Explore ultrasonic sounds and noise generation.

**Highlights:** Single oscillator for single frequency waves, Multi-oscillator for multiple sound waves, Binaural beats with carrier and beat frequencies, Bass/sub-woofer testing, Generate ultrasonic sound and noise

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Generate Frequency Weekly Plan | $4.99 | per 7 days |
| Generate Frequency Monthly Plan | $9.99 | per month |
| Generate Frequency Yearly Plan | $49.99 | per year |


## Frequently asked questions

### Is Lambda free?

Lambda costs $2.99, with no in-app purchases.

### Is Generate Frequency Sounds Hz free?

Generate Frequency Sounds Hz is free to download, with in-app purchases available.

### Which has better reviews, Lambda or Generate Frequency Sounds Hz?

Lambda is rated higher. Lambda averages 5.0 out of 5 from 1 ratings, while Generate Frequency Sounds Hz averages 3.6 from 14 ratings.

### Do Lambda or Generate Frequency Sounds Hz have ads?

Generate Frequency Sounds Hz shows ads; Lambda does not.

### Which is updated more often, Lambda or Generate Frequency Sounds Hz?

Lambda ships an update every 54 months, and Generate Frequency Sounds Hz every 4 months. Most recently, Lambda was updated on September 17, 2026 and Generate Frequency Sounds Hz on August 18, 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.*