# RoboTone. vs ADOC

The clearest difference is price: RoboTone. at Free against ADOC's $29.99. ADOC's advantage is ads (none vs shown) and iOS requirement (12.0 vs 15.0). On update cadence, in-app purchases and device support there is nothing between them.

RoboTone. is free to download; ADOC costs $29.99 up front. Neither carries in-app purchases, so what you see is what you pay.

RoboTone. ships an update every 4 months, ADOC every 2 months. The most recent releases landed on September 17, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | RoboTone. | ADOC |
| --- | --- | --- |
| Price | **Free** | $29.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/robotone/id560491646/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 64 MB | 28 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MASAHIRO MIZUTANI](https://appshunter.io/developer/368158224) | [Kounosuke Tomori](https://appshunter.io/developer/1251823462) |

## What reviewers say

### RoboTone.

[App page](https://appshunter.io/ios/app/robotone/id560491646)

This app helps children develop absolute listening skills through interactive musical challenges. Players learn to identify tones by playing a virtual piano and then compete against a "robo" by selecting the correct notes. Settings allow customization of tones and instruments.

**Highlights:** Absolute listening skill development, Interactive musical challenges, Virtual piano gameplay, Tone identification battles, Customizable tones and instruments

**Features:** Vision Pro support

**In-app purchases:** none


### ADOC

[App page](https://appshunter.io/ios/app/adoc-s/id693966425)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is RoboTone. free?

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

### Is ADOC free?

ADOC costs $29.99, with no in-app purchases.

### Do RoboTone. or ADOC have ads?

RoboTone. shows ads; ADOC does not.

### Which is updated more often, RoboTone. or ADOC?

RoboTone. ships an update every 4 months, and ADOC every 2 months. Most recently, RoboTone. was updated on September 17, 2026 and ADOC on September 1, 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.*