Sia Storage

The Sia Foundation, Inc.

About this app

Sia Storage is the world's safest cloud storage, by design. Your files are encrypted on your device before they ever leave your phone, split into 30 pieces using erasure coding, and distributed across a decentralized network of hosts worldwide. Only 10 of those 30 pieces are needed to recover your data — no single point of failure, no central server to breach.

YOUR DATA, YOUR KEYS
Sia Storage uses end-to-end encryption. Your recovery phrase is the only key to your data — not even Sia can access your files. No tracking, no ads, no data harvesting.

STORE AND ORGANIZE
Upload photos, videos, and documents. Organize files into folders, tag them for quick access, and mark favorites. Browse your library with search and filtering by file type.

AUTOMATIC PHOTO BACKUP
Enable archive sync to automatically back up your photo library to the Sia network. Track progress as your photos are encrypted and uploaded in the background.

MULTI-DEVICE SYNC
Access your files from any device. Sia Storage syncs your encrypted library across devices through your indexer — add a file on your phone, see it on your desktop.

FILE VERSIONING
Upload updated versions of files and browse their history. Sia Storage keeps track of versions so you never lose previous work.

HOW IT WORKS
Traditional cloud storage trusts a single company with your data. Sia splits your encrypted files across dozens of independent hosts using erasure coding. Even if hosts go offline, your data remains available and intact. Learn more in the app's built-in guides.

IMPORT FROM ANYWHERE
Take a photo or video directly in the app, choose from your photo library, or import from the Files app. Share files from any app on your phone directly into Sia Storage.

OPEN SOURCE
Sia Storage is built by The Sia Foundation, a non-profit dedicated to decentralized storage. The app is fully open source.

Ratings and reviews

Excellent app! Sia Storage is easy to use, secure, and highly reliable. Uploading and accessing files is fast and seamless. I really appreciate its strong privacy protection and decentralized storage technology, which gives me greater control over my data. What makes Sia Storage stand out is its affordable pricing. Compared to many leading storage applications, it offers excellent value for money while maintaining high performance and security. The app provides a smooth user experience and depe

Sia Storage is a true game-changer for digital privacy! Unlike traditional big-tech clouds, it breaks your files into encrypted pieces and scatters them across a decentralized network. No single company owns your data—only YOU do. It’s ultra-secure, completely private, and amazingly cost-effective (up to 4 times cheaper than Google Drive). With its smooth mobile interface and automatic backup features, Sia is not just another storage app; it is the absolute future of cloud technology. A solid 5/

amazing, works great 👍 Decentralized storage

What’s new

- More reliable video playback, and videos show a preview image until you press play.
- Freeing up local storage now clears all backed-up files.
- Sign-in recovers smoothly instead of getting stuck.
- The app version now shows in settings.
- The Support button now opens your email app.