Comparison

Lambda vs Generate Frequency Sounds Hz

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

Head to head
About

Lambda

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
Read full description

Musicians and Sound Engineers. Musical Notes and Frequencies and Wavelengths. Now there's an app from dgApps to convert between them all. The app features a sliding fader to dynamically change frequency, wavelength and musical note, with locks to step through standard third octave frequencies or whole musical notes. There's a built in oscillator so you can hear the frequency, and a frequency tracker so the app can tell you the frequency. Both the oscillator and the frequency tracker display the audio waveform. A settings section allows for different tuning standards, and variations in the speed of sound. Lambda can also receive calculated Speed of Sound in Air values from another dgApps app, Cair. Lambda is now a universal app, equally at home on an iPhone as on an iPad. In Split Mode on an iPad device, side by side with Cair, the calculated Speed of Sound in Air is passed in real time to the Lambda app. Lambda allows you to share frequency/wavelength/note data via all the usual sharing methods.

About

Generate Frequency Sounds Hz

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
Read full description

If you want to generate sound waves at different frequencies and in different patterns then using this app you can do so. In Generate Frequency Sounds Hz app you will get the following options: 1) Single Oscillator: - Here you can generate a single frequency wave. 2) Multi Oscillator: - Here you can generate multiple sound waves with the same or different frequencies. 3) Binaural Beats: - Here you can set a carrier frequency and a beast frequency. 4) Bass/Sub-woofers Test: - For this test, you have to use your headphones or sub-woofers. So download the Generate Frequency Sounds Hz app to create different sound wave frequencies, ultrasonic sound, noise, sound effects, etc. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Lambda4 screens
Generate Frequency Sounds Hz4 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard8 real differences · 2 level
Lambda versus Generate Frequency Sounds Hz: the parameters behind the verdict, then further details
ParameterLambdaGenerate Frequency Sounds Hz
Price$2.99Free — better
Rating5.0 (1 ratings) — better3.6 (14 ratings)
Positive reviews80.0% of reviews — better30.0% of reviews
Number of ratings114 — better
Update frequencyEvery 54 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size6 MB8 MB
Age rating4+4+
DeveloperdgAppsKevin Ghori

Customer experience

Lambda

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Generate Frequency Sounds Hz

All ratings14 ratings
Positive64.3%
Neutral0.0%
Negative35.7%
Written reviews10 reviews
Positive30.0%
Neutral0.0%
Negative70.0%

In-app purchases

None

Lambda

No in-app purchases

3 purchases

Generate Frequency Sounds Hz

Subscriptions3
  • Generate Frequency Weekly Plan$4.997 Days
  • Generate Frequency Monthly Plan$9.991 Month
  • Generate Frequency Yearly Plan$49.991 Year

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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