# Sound Union vs ARK.

The clearest difference is update cadence: ARK. at every 2 weeks against Sound Union's every 14 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Sound Union ships an update every 14 months, ARK. every 2 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sound Union | ARK. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/ark/id6578449302/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 160 MB | 93 MB |
| Requires iOS | 13.4 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Sound Union, Inc.](https://appshunter.io/developer/1709497253) | [Creative Covenant, Inc.](https://appshunter.io/developer/1759541398) |

## What reviewers say

### Sound Union

[App page](https://appshunter.io/ios/app/sound-union/id6468079951)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### ARK.

[App page](https://appshunter.io/ios/app/ark/id6578449302)

Securely register, store, update, and share your original ideas, from songs to code, without needing legal intermediaries. Protect your intellectual property against theft and AI scraping with blockchain registration and immutable NFT copies.

**Highlights:** 360º Intellectual Property Protection, Integrated NDA, Biometric Verification, Blockchain Registration, Immutable NFT Copies, AI Scraping Protection, Community Collaboration

**In-app purchases:** none


## Frequently asked questions

### Is Sound Union free?

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

### Is ARK. free?

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

### Do Sound Union or ARK. have ads?

Neither Sound Union nor ARK. shows ads.

### Which is updated more often, Sound Union or ARK.?

Sound Union ships an update every 14 months, and ARK. every 2 weeks. Most recently, Sound Union was updated on October 15, 2026 and ARK. on October 24, 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.*