Sound Union vs ARK.
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sound Union
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Sound Union is the first private club for musicians and music lovers that combines the best of music studios and co-work spaces. With Sound Union, your All-Access membership provides entry to a private music-inspired play space and workspace, with professionally equipped rehearsal rooms, podcast studio, collaboration studios, small studios and a post-production suite, all for the price of a monthly membership. All you have to do is bring your instrument, voice and good vibes. We provide all the amplifiers, mics, drums, keyboards and more. You'll also have access to a variety of amenities, including high-speed internet, coffee, tea, sodas, energy drinks, water, snacks and more. Whether you're a solo artist looking to expand your musical horizons, start a podcast, refine your skills, or part of a band, Sound Union is the perfect place for you to join a community of like-minded people who want a place to learn, create and collaborate. Sound Union also offers a private Audience Membership that allows unlimited evening access from 5:00 p.m. - 11:00 p.m. Audience members can attend exclusive private house concerts and relax in our club before or after a night on the town while enjoying complimentary beverages and snacks. Sound Union is located in downtown Redwood City, CA at 2625 Broadway Street. And is open to members seven days a week from 10:00 a.m. to 11:00 p.m. Here are some of the features of SoundUnion: - Fully equipped music studios for rehearsal, jam sessions and clinics. - Community of music makers to connect with and collaborate with. - Plug-and-play podcast studio with room for up to four people. - Amenities include high-speed internet, coffee, tea, energy drinks, water, snacks and more. - Musician and audience membership options. - Weekly private performances by local and traveling artists in our “Loft” club space. - Almost 10,000 square feet of music inspired space for gathering, playing, working and relaxing. Become a member of Sound Union today and start creating the best music of your life!
ARK.
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.
- 360º Intellectual Property Protection
- Integrated NDA
- Biometric Verification
- Blockchain Registration
- Immutable NFT Copies
- AI Scraping Protection
- Community Collaboration
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ARK is the world’s first 360º Intellectual Property Protection solution for new ideas - songs, scripts, pitches, patents, research, floorplans, fashion designs, code or any other form of proprietary intellectual property - any human idea that has been thought of and needs to be turned into a copyrightable ‘work’ can be registered, stored, updated and shared safely here. ARK is revolutionary in its approach to protecting your work, because it combines an: • integrated NDA • instant biometric verification • transparent blockchain registration of work • record of every interaction at every stage • immutable & unchangeable copy of work as NFT This means that without a lawyer, manager, agent or publisher, you can still save, store, share and collaborate on your ideas without worrying that they might be stolen or copied without your knowledge. Also, most crucially, ARK is a human-only access site which means your work is protected against AI scraping of your IP. Enjoy the freedom to be creative, explore the work of others and even join a community of like-minded people who believe that the future of creativity is human - and worth protecting.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 September 11, 2026 and September 16, 2026 respectively.
| Parameter | Sound Union | ARK. |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 14 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 160 MB | 93 MB |
| Age rating | 4+ | 12+ |
| Developer | Sound Union, Inc. | Creative Covenant, Inc. |
In-app purchases
Sound Union
No in-app purchases
ARK.
No in-app purchases









