Backblaze vs S3 Client & Browser
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Backblaze
Access and manage your cloud-backed-up files directly from your iOS device. Download, preview, and share files securely, with support for Face ID login. Keep your important data readily available wherever you go.
- Access backed-up files
- Manage cloud storage
- Face ID login
- Search and download files
- Image thumbnail previews
- Share files
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Backblaze Mobile for iOS is a free app to view, download, and share files you have backed up to your Backblaze Personal Backup account. Easily access your files from devices running iOS 15+. Features: * Access files backed up to Backblaze Personal Backup * Manage buckets and files in Backblaze B2 Cloud Storage * Face ID access supported for login * Search for specific files and download to your iOS device * Thumbnail preview of downloaded image files * Share files via text, email, etc About Backblaze: * Founded in 2007 * 2.2+ Exabytes of customer data under storage * Recommended by About.com, The Verge, Lifehacker, re/code, Macworld... and hundreds of thousands of customers across over 175 countries "You will sleep so much better knowing you have Backblaze." - John Gruber "I've used other online backup, Backblaze is my favorite." - Marco Arment "I like and can recommend Backblaze." - Walt Mossberg
S3 Client & Browser
Manage cloud storage from your iPhone. Connect to various S3-compatible services to browse, preview, upload, download, and share files securely. Offers robust file management and private key handling.
- Connect to S3, R2, B2, Wasabi, and more
- Browse, preview, and manage files
- Upload and download files of any size
- Share files with time-limited links
- Securely store access keys
- Private by design, no tracking
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S3 Browser is a fast, simple way to manage your cloud storage on iPhone. Connect to Amazon S3 or any S3-compatible service, then browse, preview, upload and share files from wherever you are. WORKS WITH YOUR STORAGE • Amazon Web Services (S3) • Cloudflare R2 • Backblaze B2 • Wasabi • DigitalOcean Spaces • Linode Object Storage • MinIO and other self-hosted storage • Any custom S3-compatible endpoint Paste an endpoint or bucket URL and the bucket and region fill in for you. Buckets in other AWS regions or R2 jurisdictions are found automatically. If something doesn’t look right, such as swapped keys, a dashboard URL instead of an endpoint, or an API token instead of access keys, the app points it out before you connect. BROWSE AND PREVIEW • Move through buckets and folders quickly, even very large ones • View photos full screen and preview documents with Quick Look • Sort and filter any folder • See file details such as size, type, storage class and last modified date • Bookmark the buckets and folders you use most UPLOAD AND DOWNLOAD • Upload files of any size, up to the 5 TB S3 limit • Large files go up in parts and recover from network hiccups automatically • Downloads stream straight to disk with live progress • A transfer queue shows everything in progress. Cancel, retry or save any transfer • Transfers keep going when you switch apps, with progress in a Live Activity SHARE FILES AND FOLDERS • Send a time-limited link straight to any file • Choose Direct Download so the file saves instead of opening in the browser • Share a whole folder, or a single file, as a clean download page anyone can open • Links are signed on your device, and pages expire with their links MANAGE FILES • Create, rename, duplicate and delete files and whole folders • Bookmarks follow files and folders you rename • Copy a file’s key or S3 URI • Restore archived Glacier and Deep Archive files KEYS THAT FIT YOUR SETUP • Add as many accounts as you need • Use keys limited to specific buckets, such as Cloudflare R2 API tokens • Read-only keys work too. The app hides actions they can’t use, so you can browse and download safely • Clear explanations when keys, endpoints or buckets don’t work, so you know what to fix PRIVATE BY DESIGN • Your keys are stored securely in the iOS Keychain and never leave your device • The app talks directly to your storage provider. No account, no tracking • Download pages are optional. They hold only the signed links you choose to share, never your keys • Small and fast, with no third-party code Privacy Policy: https://nufrnd.com/privacy-policy?app=s3-browser Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: S3 Client & Browser at 100% against Backblaze's 35%. Backblaze's advantage is iOS requirement (15.0 vs 18.6). On price, update cadence, ads and in-app purchases 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.
Backblaze ships an update every 2 months, S3 Client & Browser every 6 weeks. The most recent releases landed on November 6, 2026 and November 11, 2026 respectively.
| Parameter | Backblaze | S3 Client & Browser |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (39 ratings) — better | — |
| Positive reviews | 34.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 39 — better | — |
| Update frequency | Every 2 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 13 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Backblaze | NuFrnd AI Limited |
Customer experience
Backblaze
S3 Client & Browser
Bugs and requests
Backblaze
Reported bugs
3 issues- App crashes on launch or login
- Inconsistent performance and connectivity
- Unreliable file downloads and restoration
Requested features
4 requests- Thumbnails and previews for media files
- Ability to manage backups and buckets
- Improved search and sorting options
- Sync and upload capabilities from mobile
S3 Client & Browser
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Backblaze
No in-app purchases
S3 Client & Browser
No in-app purchases









