# Koshiba vs Fundamental2

The clearest difference is price: Koshiba at $4.00 against Fundamental2's $34.99. Koshiba also leads on review sentiment (79% vs 57%) and device support (3 vs 1). On rating, ratings volume, update cadence and ads there is nothing between them.

Koshiba costs $4.00 and Fundamental2 $34.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.7 for Koshiba against 4.7 for Fundamental2. Both are backed by a comparable volume of ratings — 17 and 6 respectively. Written reviews are what separate them: 79% of Koshiba's written reviews are positive against 57% of Fundamental2's.

Koshiba ships an update every 6 weeks, Fundamental2 every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | Koshiba | Fundamental2 |
| --- | --- | --- |
| Price | **$4.00** | $34.99 |
| Rating | **[4.7 (17 ratings)](https://appshunter.io/ios/app/koshiba-auv3-plug-in-effect/id1536426746/reviews)** | [4.7 (6 ratings)](https://appshunter.io/ios/app/fundamental2/id1602995010/reviews) |
| Number of ratings | **17** | 6 |
| Positive reviews | **78.6% of reviews** | 57.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 4 weeks** |
| Monetization | Paid | Paid |
| Size | 7 MB | 59 MB |
| Requires iOS | 12.0 | 12 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [iceWorks, Inc.](https://appshunter.io/developer/347507439) | [SonicPlanet Audio Video Teknolojileri Anonim Sti.](https://appshunter.io/developer/946568989) |

## What reviewers say

### Koshiba

[App page](https://appshunter.io/ios/app/koshiba-auv3-plug-in-effect/id1536426746)

This audio effect transforms sustained sounds into rhythmic phrases with a 16-step sequencer. Adjust volume, pan, and filter at each step to craft intricate sound designs.

**Highlights:** 16-step gate sequencer, Adjustable volume per step, Adjustable pan per step, Adjustable filter per step, Transforms sustained sounds, Creates rhythmic phrases

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

**In-app purchases:** none


### Fundamental2

[App page](https://appshunter.io/ios/app/fundamental2/id1602995010)

Explore the origins of electronic music with this sound synthesis software. It recreates a vintage vacuum tube oscillator with advanced modulation and morphing capabilities. Ideal for live electronics, media composition, or exploring early electronic music history.

**Highlights:** Vintage vacuum tube oscillator recreation, Complex modulation possibilities, Stochastic parameter distribution, Morphing engine between scenes, Real-time tuning scale transitions, Morse code simulator LFO

**In-app purchases:** none


## Frequently asked questions

### Is Koshiba free?

Koshiba costs $4.00, with no in-app purchases.

### Is Fundamental2 free?

Fundamental2 costs $34.99, with no in-app purchases.

### Which has better reviews, Koshiba or Fundamental2?

Koshiba is rated higher. Koshiba averages 4.7 out of 5 from 17 ratings, while Fundamental2 averages 4.7 from 6 ratings.

### Do Koshiba or Fundamental2 have ads?

Neither Koshiba nor Fundamental2 shows ads.

### Which is updated more often, Koshiba or Fundamental2?

Koshiba ships an update every 6 weeks, and Fundamental2 every 4 weeks. Most recently, Koshiba was updated on November 3, 2026 and Fundamental2 on November 3, 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.*