# Sia Storage > Decentralized, encrypted cloud storage with automatic backup and multi-device sync. (iPhone/iPad app by Sia Storage.) - Source: https://appshunter.io/ios/app/sia-storage/id6753593109 (this page in markdown: same URL + `.md`) - Developer: [Sia Storage](https://appshunter.io/developer/1839553964) - Category: Productivity, Utilities - Price: Free - Rating: 5.00/5 from 8 App Store ratings · 3 written reviews indexed - Age rating: 12+ - Requires: iOS 16.0 · 52 MB - Languages: American English - Released: 2026-04-22 - Data updated: 2026-09-03 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/sia-storage/id6753593109/reviews.md ## What is Sia Storage? 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. ## Key features - End-to-end encryption - Decentralized file distribution - Automatic photo backup - Multi-device sync - File versioning - Open source ## Recent user reviews (3 of 3) All indexed reviews: https://appshunter.io/ios/app/sia-storage/id6753593109/reviews.md ### 5/5 — Mr *2026-06-14* Easy to use! Great GUI fast and safe. I only feel safe when my data is in the hands of Sia Storage ### 5/5 — Great alternative to iCloud *2026-05-06* Easy to use very fast! Most Importantly it offers 50 GB to anyone that signs up! A++++++ ### 5/5 — Great first launch so far *2026-04-26* It’s working well, but slow to upload from on device on this first release. Looking forward to what’s to come. ## Frequently asked questions about Sia Storage ### What is Sia Storage's pricing model? Sia Storage is completely free to download and use. There are no upfront costs or subscription fees associated with the application. ### How does Sia Storage ensure data security? Sia Storage uses end-to-end encryption, splitting files into 30 pieces and distributing them across a decentralized network. Only 10 pieces are needed for recovery, preventing single points of failure and unauthorized access. ### Does Sia Storage have ads? No, Sia Storage is ad-free. The app is developed by The Sia Foundation, a non-profit, and explicitly states 'no tracking, no ads, no data harvesting'. ### On which devices can I use Sia Storage? Sia Storage is available for iPhone and iPad, as indicated by its supported devices list. ### How often is Sia Storage updated? The latest version of Sia Storage is 1.13.3, and it was last updated on June 12, 2026. This indicates a relatively active development cycle. ### Can I collaborate on files with others using Sia Storage? While Sia Storage focuses on secure personal storage and multi-device sync, the description does not explicitly mention collaboration features for multiple users working on the same files simultaneously. ### What file formats can I store in Sia Storage? You can upload photos, videos, and documents to Sia Storage. The app also allows importing from your photo library or the Files app, and sharing from any app on your phone. ### What is the age rating for Sia Storage? Sia Storage has an age rating of 12+, making it suitable for users aged 12 and above. ## Version history (last 5 releases) ### 1.14.1 — 2026-08-27 - 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. ### 1.14.0 — 2026-08-13 - All-new imports: see every import's live progress, what's waiting and why, and retry anything that failed. - Photo imports are faster and more efficient. - Imports pick up right where they left off if interrupted. - Faster uploads that use less battery, with live upload speed. - A redesigned status view shows everything in one place: imports, uploads, and progress. ### 1.13.4 — 2026-07-07 - Faster transfers and more efficient metadata sync. - Sync new photos is now more reliable. - More accurate status-line file counts. - Periodically reclaim storage left behind by deleted files. ### 1.13.3 — 2026-06-12 - A friendlier, faster sign-in and onboarding experience. - Photo and video thumbnails appear instantly while importing, and photo thumbnails no longer appear sideways. - Easier ways to add your first files to the library. - More accurate file sizes. ### 1.13.0 — 2026-06-02 - Faster, more reliable file imports. - Smoother photo backup that avoids duplicate imports. - Uploads and downloads stop and resume more reliably. - Support for many more audio, video, and image formats. - Smarter file type detection and better preview support. - Improved startup error screen. ## Related topics [mitigate sia](https://appshunter.io/ios/topics/mitigate-sia) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-03.*