# AddStation vs OTOKAI

The clearest difference is review sentiment: AddStation at 82% against OTOKAI's 0%. AddStation also leads on iOS requirement (12.0 vs 15.5). OTOKAI's advantage is price (Free vs $8.99). On update cadence, ads, in-app purchases and device support there is nothing between them.

OTOKAI is free to download; AddStation costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | AddStation | OTOKAI |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | **[4.5 (42 ratings)](https://appshunter.io/ios/app/addstation/id1500919657/reviews)** | — |
| Number of ratings | **42** | — |
| Positive reviews | **82.1% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Weekly | Weekly |
| Monetization | Paid | **Free** |
| Size | 133 MB | 93 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Harry Gohs](https://appshunter.io/developer/382428644) | [Amadeus Code Inc.](https://appshunter.io/developer/802869982) |

## What reviewers say

### AddStation

[App page](https://appshunter.io/ios/app/addstation/id1500919657)

Explore new sonic territories with this advanced additive synthesis tool. Create complex timbres by combining thousands of sine waves and unique morph sequencing. Integrate seamlessly with iOS production environments and enjoy a suite of built-in effects.

**Highlights:** Fractal additive synthesis, Sound morphing, Over 170 sound presets, AUv3 AudioUnit integration, Built-in effects suite, Audiobus 3 and Ableton Link support

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

**In-app purchases:** none


### OTOKAI

[App page](https://appshunter.io/ios/app/otokai/id6499198233)

This app transforms music listening into an engaging brain activity. Create unique music-photo or music-video combinations and share them with friends and family in a private social network. It's designed to promote cognitive health through enjoyable musical experiences.

**Highlights:** AI-powered music generation, Combine music with photos/videos, Private social network for sharing, Cognitive function exercises, Music analysis and comparison, Daily brain health routine

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

**In-app purchases:** none


## Frequently asked questions

### Is AddStation free?

AddStation costs $8.99, with no in-app purchases.

### Is OTOKAI free?

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

### Do AddStation or OTOKAI have ads?

Neither AddStation nor OTOKAI shows ads.

### Which is updated more often, AddStation or OTOKAI?

AddStation ships an update weekly, and OTOKAI weekly. Most recently, AddStation was updated on October 24, 2026 and OTOKAI on October 27, 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.*