# Lambda vs FarFaces Security

The clearest difference is price: FarFaces Security at Free against Lambda's $2.99. FarFaces Security also leads on update cadence (every 14 months vs every 54 months). Lambda's advantage is device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

FarFaces Security is free to download; Lambda costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Lambda ships an update every 54 months, FarFaces Security every 14 months. The most recent releases landed on September 17, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Lambda | FarFaces Security |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lambda/id434581690/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 14 months** |
| Monetization | Paid | — |
| Size | 6 MB | 241 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [dgApps](https://appshunter.io/developer/357488432) | [BitCenter UK Ltd](https://appshunter.io/developer/1519765120) |

## 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


### FarFaces Security

[App page](https://appshunter.io/ios/app/farfaces-security/id1522785373)

**In-app purchases:** none


## Frequently asked questions

### Is Lambda free?

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

### Is FarFaces Security free?

FarFaces Security is free to download, with no in-app purchases.

### Do Lambda or FarFaces Security have ads?

Neither Lambda nor FarFaces Security shows ads.

### Which is updated more often, Lambda or FarFaces Security?

Lambda ships an update every 54 months, and FarFaces Security every 14 months. Most recently, Lambda was updated on September 17, 2026 and FarFaces Security on September 14, 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.*