# Tachyon vs GlassChoir

The clearest difference is update cadence: GlassChoir at daily against Tachyon's every 14 months. GlassChoir also leads on price ($0.99 vs $1.99). Tachyon's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 18.0). On ads and in-app purchases there is nothing between them.

Tachyon costs $1.99 and GlassChoir $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Tachyon ships an update every 14 months, GlassChoir daily. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Tachyon | GlassChoir |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[3.8 (13 ratings)](https://appshunter.io/ios/app/tachyon/id544585980/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 77.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Daily** |
| Monetization | Paid | — |
| Size | 12 MB | 2 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Wizdom Music LLC](https://appshunter.io/developer/377345351) | [Austen Allred](https://appshunter.io/developer/1020047784) |

## What reviewers say

### Tachyon

[App page](https://appshunter.io/ios/app/tachyon/id544585980)

This app allows users to blend any two sounds together to create unique musical expressions. Its intuitive interface lets you control pitch and tone independently, offering a mesmerizing visual experience as you play.

**Highlights:** Blend any two sounds, Independent pitch and tone control, Intuitive touch interface, Mesmerizing visual feedback, Custom sound library

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✨ Expressive instrument
- 💡 Innovative concept
- 🎨 Great visuals
- 💰 Great value for price
- 👍 Easy to use

**What reviewers complain about**

- 📉 Limited sound palette
- 🤔 Some find it basic
- 😕 Sounds can be unremarkably cheesy
- 🪞 Interface can be distracting

**Reported bugs**

- IAA and Audiobus compatibility issues
- Does not work with Audiobus
- Does not launch with Audiobus
- Inter-app audio and Audiobus connectivity missing
- Broken on iPad 2 - iOS 7

**Requested features**

- Audiobus and IAA support
- MIDI support
- MPE support
- Ability to record
- Update for notched iPhones


### GlassChoir

[App page](https://appshunter.io/ios/app/glasschoir/id6760956931)

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

**In-app purchases:** none


## Frequently asked questions

### Is Tachyon free?

Tachyon costs $1.99, with no in-app purchases.

### Is GlassChoir free?

GlassChoir costs $0.99, with no in-app purchases.

### Do Tachyon or GlassChoir have ads?

Neither Tachyon nor GlassChoir shows ads.

### Which is updated more often, Tachyon or GlassChoir?

Tachyon ships an update every 14 months, and GlassChoir daily. Most recently, Tachyon was updated on November 1, 2026 and GlassChoir on October 31, 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.*