# iFunctionGenerator vs Tone Generator

The clearest difference is price: Tone Generator at Free against iFunctionGenerator's $2.99. Tone Generator also leads on update cadence (every 5 months vs every 12 months). iFunctionGenerator's advantage is in-app purchases (none vs 1) and device support (3 vs 1). On ads there is nothing between them.

Tone Generator is free to download; iFunctionGenerator costs $2.99 up front. Tone Generator sells 1 one-off in-app purchase. iFunctionGenerator asks for nothing beyond the download.

iFunctionGenerator ships an update every 12 months, Tone Generator every 5 months. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | iFunctionGenerator | Tone Generator |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.4 (9 ratings)](https://appshunter.io/ios/app/ifunctiongenerator/id304851755/reviews)** | — |
| Number of ratings | **9** | — |
| Positive reviews | 53.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 1 MB | 10 MB |
| Requires iOS | **6.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [IVANA RAST](https://appshunter.io/developer/1782298960) |

## What reviewers say

### iFunctionGenerator

[App page](https://appshunter.io/ios/app/ifunctiongenerator/id304851755)

This utility transforms your iOS device into a versatile audio function generator. Create up to 20 independent generators producing various waveforms and noise types, with precise control over frequency, volume, and phase for each channel. Save and recall your settings for quick access.

**Highlights:** Multiple waveform generation (sine, triangle, sawtooth, square), Pink and white noise generation, Up to 20 independent generators, Independent left/right channel volume control, Adjustable frequency from 1 to 20,000 Hz, Phase control, Save and load generator settings

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

**In-app purchases:** none


### Tone Generator

[App page](https://appshunter.io/ios/app/tone-generator-harmoniq/id6744338213)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Frequency Generator Premium | $6.99 | one-time |


## Frequently asked questions

### Is iFunctionGenerator free?

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

### Is Tone Generator free?

Tone Generator is free to download, with in-app purchases available.

### Do iFunctionGenerator or Tone Generator have ads?

Neither iFunctionGenerator nor Tone Generator shows ads.

### Which is updated more often, iFunctionGenerator or Tone Generator?

iFunctionGenerator ships an update every 12 months, and Tone Generator every 5 months. Most recently, iFunctionGenerator was updated on September 17, 2026 and Tone Generator on September 23, 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.*