# Sonitus — Frequency Generator

> Audio frequency generator for testing, tuning, and analysis. (iPhone/iPad app by Bastiaan Verreijt.)

- Source: https://appshunter.io/ios/app/sonitus/id1541742017 (this page in markdown: same URL + `.md`)
- Developer: [Bastiaan Verreijt](https://appshunter.io/developer/1541742019)
- Category: Utilities, Music
- Price: Free
- Rating: 3.00/5 from 4 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 1 MB
- Languages: English
- Released: 2020-11-25
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sonitus/id1541742017/reviews.md

## What is Sonitus?

Generate frequencies in the audio range from 20Hz up to 20kHz. Test your hearing and compare with your friends. Use it to tune your instrument or simply annoy your neighbour's dog.

Test audio equipment using a fixed frequency or a frequency sweep that sweeps the frequency in a logarithmic scale from 20Hz to 20kHz.

The frequency can be selected by turning the knob or by entering the exact desired frequency using the keyboard.

## Key features

- Generate audio frequencies (20Hz-20kHz)
- Hearing test functionality
- Instrument tuning aid
- Audio equipment testing
- Fixed frequency selection
- Logarithmic frequency sweep

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/sonitus/id1541742017/reviews.md

### 1/5 — Ruim/ BAD

*2025-08-04, version 1.0*

There’s no sound ! 
Não sai som nenhum !

### 1/5 — There’s no sound

*2025-03-27, version 1.0*

There’s no sound

### 5/5 — Simple, easy to use and does exactly what it is supposed to.

*2024-12-12*

A handy tool for anyone doing work with speakers. Would recommend.

### 1/5 — Sem som.

*2024-09-03, version 1.0*

Não tem som nenhum. 😫

### 1/5 — Não está emitindo som.

*2024-08-07, version 1.0*

Não está emitindo som. Acabei de instalar.

### 1/5 — Absolutamente mudo

*2024-06-25, version 1.0*

Nenhum som

### 1/5 — Não funciona

*2024-05-09, version 1.0*

Só consegui usar um dia. O aplicativo simplesmente não toca as frequências. Fica mudo. Por favor corrijam.

### 1/5 — It turns off

*2024-02-29, version 1.0*

Can you make so it doesn’t keep turning off when the phone goes on stand by. I can’t keep touching the screen to keep it going, it’s not practical.

### 4/5 — Good tone generator

*2023-07-14, version 1.0*

Good news: Works in landscape and portrait mode. Onscreen keyboard single frequency input.
Could be better: Allow range of frequency sweep to be entered from keyboard rather than just 20->20000 Hz.

### 4/5 — Works for me.

*2023-06-01, version 1.0*

This seems to work for me, frequencies are accurate.  An additional feature to add would be the ability to set the start and end frequencies of the sweep, and the sweep time.

## Frequently asked questions about Sonitus

### What is Sonitus used for?

Sonitus generates audio frequencies from 20Hz to 20kHz. It can be used to test hearing, tune instruments, test audio equipment, or explore sound frequencies.

### How do I select a frequency in Sonitus?

You can select frequencies by turning the on-screen knob or by directly entering the desired frequency using the keyboard for precise control.

### Does Sonitus have ads?

No, Sonitus does not contain advertisements.

### What devices is Sonitus available on?

Sonitus is available on iPhone, iPad, and iPod devices.

### What is the age rating for Sonitus?

Sonitus has an age rating of 4+.

### How often is Sonitus updated?

Sonitus was last updated on 2020-11-25 with version 1.0. Further update frequency is not specified.

### What is the user rating for Sonitus?

Sonitus has a rating of 3.0 stars based on 4 ratings.

### Can Sonitus test audio equipment?

Yes, Sonitus can test audio equipment using either a fixed frequency or a frequency sweep that moves logarithmically from 20Hz to 20kHz.

## Version history (last 1 release)

### 1.0 — 2020-11-25

No release notes.

## Apps similar to Sonitus

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sonic Pitch Sound Generator](https://appshunter.io/ios/app/sonic-pitch-sound-generator/id1187701748) | 4.5 (1,821) | Free | Utilities |
| [Tone Generator Speaker Cleaner](https://appshunter.io/ios/app/tone-generator-speaker-cleaner/id1671426872) | 3.6 (18) | Free | Utilities |
| [Generate Frequency Sounds Hz](https://appshunter.io/ios/app/generate-frequency-sounds-hz/id1516257706) | 3.8 (13) | Free | Utilities |
| [Audio Function Generator](https://appshunter.io/ios/app/audio-function-generator/id768229610) | 4.7 (2,144) | Free | Utilities |
| [Frequency Sound Generator App](https://appshunter.io/ios/app/frequency-sound-generator-app/id1238160553) | 4.5 (4,832) | Free | Utilities |
| [Frequency: Sound Generator](https://appshunter.io/ios/app/frequency-sound-generator/id6474342664) | 4.7 (340) | Free | Utilities |

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*