# Frequency Generator (Sound) vs PreShow

The clearest difference is in-app purchases: PreShow at none against Frequency Generator (Sound)'s 1. PreShow also leads on ads (none vs shown) and update cadence (fortnightly vs every 3 months). Frequency Generator (Sound)'s advantage is iOS requirement (13.0 vs 15.1). On price and device support there is nothing between them.

Both are free to download. Frequency Generator (Sound) sells 1 in-app purchase, starting at $0.99 per 7 days. PreShow asks for nothing beyond the download.

Frequency Generator (Sound) ships an update every 3 months, PreShow fortnightly. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Frequency Generator (Sound) | PreShow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (6 ratings)](https://appshunter.io/ios/app/frequency-generator-sound/id6596757315/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 28 MB | 41 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NETIGEN Kluzowicz sp. j.](https://appshunter.io/developer/892331873) | [Ebert Marques](https://appshunter.io/developer/1404025963) |

## What reviewers say

### 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 |


### PreShow

[App page](https://appshunter.io/ios/app/preshow/id6761081284)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Frequency Generator (Sound) free?

Frequency Generator (Sound) is free to download, with in-app purchases available.

### Is PreShow free?

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

### Do Frequency Generator (Sound) or PreShow have ads?

Frequency Generator (Sound) shows ads; PreShow does not.

### Which is updated more often, Frequency Generator (Sound) or PreShow?

Frequency Generator (Sound) ships an update every 3 months, and PreShow fortnightly. Most recently, Frequency Generator (Sound) was updated on October 10, 2026 and PreShow on October 12, 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.*