# ECCJアプリ vs Tone Generator+ Freq

The clearest difference is ads: ECCJアプリ at none against Tone Generator+ Freq's shown. Tone Generator+ Freq's advantage is update cadence (every 5 days vs every 2 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ECCJアプリ ships an update every 2 weeks, Tone Generator+ Freq every 5 days. The most recent releases landed on October 24, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ECCJアプリ | Tone Generator+ Freq |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tone-generator-plus-freq/id6760830690/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 30 MB | 88 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 17+ |
| Developer | [Edgar Cayce Center in Japan](https://appshunter.io/developer/1789301093) | [Kyu-Hee Jang](https://appshunter.io/developer/1587578867) |

## What reviewers say

### ECCJアプリ

[App page](https://appshunter.io/ios/app/eccj/id6758862772)

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

**In-app purchases:** none


### Tone Generator+ Freq

[App page](https://appshunter.io/ios/app/tone-generator-plus-freq/id6760830690)

Generate a wide range of audio tones and noise, from pure sine waves to complex waveforms and ambient sounds. Features include precise frequency control, customizable presets, and a frequency sweep function. Ideal for musicians, audiophiles, and anyone needing specific sound generation.

**Highlights:** Generate tones from 1 Hz to 22 kHz, Sine, square, sawtooth, and triangle waveforms, White, pink, and brown noise, Customizable presets and mixer, Frequency sweep function, Instrument tuner, Water eject tool

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

**In-app purchases:** none


## Frequently asked questions

### Is ECCJアプリ free?

ECCJアプリ is free to download, with no in-app purchases.

### Is Tone Generator+ Freq free?

Tone Generator+ Freq is free to download, with no in-app purchases.

### Do ECCJアプリ or Tone Generator+ Freq have ads?

Tone Generator+ Freq shows ads; ECCJアプリ does not.

### Which is updated more often, ECCJアプリ or Tone Generator+ Freq?

ECCJアプリ ships an update every 2 weeks, and Tone Generator+ Freq every 5 days. Most recently, ECCJアプリ was updated on October 24, 2026 and Tone Generator+ Freq on November 5, 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.*