# Tone Generator! vs IOTA Readout

The clearest difference is price: IOTA Readout at Free against Tone Generator!'s $0.99. IOTA Readout also leads on update cadence (every 7 months vs every 61 months). Tone Generator!'s advantage is iOS requirement (8.0 vs 13.0). On ads, in-app purchases and device support there is nothing between them.

IOTA Readout is free to download; Tone Generator! costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tone Generator! ships an update every 61 months, IOTA Readout every 7 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Tone Generator! | IOTA Readout |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[4.7 (23 ratings)](https://appshunter.io/ios/app/tone-generator/id479273838/reviews)** | — |
| Number of ratings | **23** | — |
| Positive reviews | 88.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 61 months | **Every 7 months** |
| Monetization | Free | — |
| Size | 5 MB | 36 MB |
| Requires iOS | **8.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peter Deelstra](https://appshunter.io/developer/400038854) | [Every European Digital Poland sp. z o.o.](https://appshunter.io/developer/1812990168) |

## What reviewers say

### Tone Generator!

[App page](https://appshunter.io/ios/app/tone-generator/id479273838)

Create and play a wide range of audio tones with adjustable frequencies and waveforms. Generate up to 12 simultaneous tones with individual volume control. Modify tones in real-time for versatile sound generation.

**Highlights:** Generate tones from 20 Hz to 15000 Hz, Adjust tones while playing, Play up to 12 tones simultaneously, Adjust individual tone volumes, Supports sine, square, and triangle waveforms

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

**In-app purchases:** none


### IOTA Readout

[App page](https://appshunter.io/ios/app/iota-readout/id1455023875)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tone Generator! free?

Tone Generator! costs $0.99, with no in-app purchases.

### Is IOTA Readout free?

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

### Do Tone Generator! or IOTA Readout have ads?

Neither Tone Generator! nor IOTA Readout shows ads.

### Which is updated more often, Tone Generator! or IOTA Readout?

Tone Generator! ships an update every 61 months, and IOTA Readout every 7 months. Most recently, Tone Generator! was updated on November 1, 2026 and IOTA Readout on November 2, 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.*